DGFI-TUM - Sanchez-Drewes, Laura

Laura Sanchez-Drewes, Dr.-Ing.

Deutsches Geodätisches Forschungsinstitut und
Lehrstuhl für Geodätische Geodynamik (Prof. Seitz)

Postadresse
Arcisstr. 21
80333 München

Tel.: +49 (89) 289-23747
lm.sanchez@tum.de

Functions/Memberships

Global Geodetic Observing System (GGOS)

President, (since 2023)
Vice-president, (2019-2023)
Bureau of Products and Standards, Working Group "Towards a consistent set of parameters for the definition of a new GRS", IHRF representative (2019-2023)
Bureau of Products and Standards, Member (since 2011)
Executive Committee, Member (since 2019)
Focus Area Unified Height System, Joint Working Group "Implementation of the International Height Reference Frame (IHRF)", Chair (2019-2023)
Focus Area Unified Height System, Lead (2015-2023)
Governing Board, Member (since 2015)
Joint Working Group on the Realization of the IHRS, Chair (2015-2019)
Strategic Planing Committee, Member (2022-2023)
Theme 1: Unified Global Height System, Lead team (2011)
Working Group Consolidation of a best estimate GRS based on the adopted W0 of the IHRF , Member, IHRF Representative (since 2023)

International Association of Geodesy (IAG)

Executive Committee, Member (since 2023)
Symposia Series, Assistant Editor-in-Chief (since 2015)
Commission 1 Sub-Commission 1.3b: Regional Reference Frame for South and Central America, Vice-Chair (2007-2015)
Commission 1 Working Group 1.3.1 Time dependent transformations between reference frames, Member (2015-2019)
Commission 2, Joint Working Group 2.1.1: Establishment of the International Gravity Reference Frame, Corresponding member, IHRF representative (2019-2023)
Commission 2, Joint Working Group 2.2.2: Error assessment of the 1 cm geoid experiment, Member (2019-2023)
Commission 3 (Earth Rotation and Geodynamics) Steering Committe , Member, GGOS Representative (since 2023)
Inter-Commission Committee on Geodesy for Climate Research (ICCC), Steering Committee member (since 2023)
Inter-Commission Committee on Theory, Joint Study Group: Geoid/quasi-geoid modelling for realization of the geopotential height datum, Member (2019-2023)
Inter-Commission Committee on Theory, Study Group Height datum: Definition, New Concepts, and Standardization, Member (since 2023)
InterCommission Project 1.2: Vertical Reference Systems, Member (2003-2011)
Joint Working Group 0.1.1: Vertical datum standardization, Chair (2011-2015)
Joint Working Group 1.3: Strategies for epoch reference frames, Member (2011-2015)
SubCommission 1.3 Working Group on Regional Dense Velocity Fields, SIRGAS Representative (2007-2011)
Working Group 1.3.1: Integration of dense velocity into the ITRF, SIRGAS representative (2011-2015)
Working Group 1.3.2: Deformation models for reference frames, Member (2011-2015)

International DORIS Service (IDS)

Governing Board, Member (since 2023)

International GNSS Service (IGS)

Governing Board, Member, GGOS Representative (since 2023)
Governing Board, Network Representative (2014-2021)
Infrastructure Committee, Member (since 2020)
Regional Network Associate Analysis Centre for SIRGAS, Chair (since 2010)
Working Group Reference Frame, Member (since 2019)

International Gravity Field Service

Advisory Committee, Member (since 2019)
International Height Reference Frame (IHRF) Combination Coordination, Co-chair (since 2023)

International Service for the Geoid (ISG)

Scientific advisor (since 2016)

International Union of Geodesy and Geophysics (IUGG)

Representative to the Panamerican Institute for Geodesy and History (PAIGH) (since 2015)

Sistema de Referencia Geocéntrico para las Américas (SIRGAS)

SIRGAS Analysis Centre, Chair (since 2010)
Scientific Committee, Member (since 2015)
Vicepresident (2007-2015)

Publications

2024

Drewes H., Seitz M., Sánchez L.: Realisation of the Non-Rotating Terrestrial Reference Frame by an Actual Plate Kinematic and Crustal Deformation Model (APKIM2020). International Association of Geodesy Symposia, doi:10.1007/1345_2024_276, 2024 (Open Access)

Liu Q., Schmidt M., Sánchez L., Moisés L., Cortez D.: High-resolution regional gravity field modeling in data-challenging regions for the realization of geopotential-based height systems. Earth, Planets and Space, 76(1), 10.1186/s40623-024-01981-1, 2024 (Open Access)

Oelsmann J., Marcos M., Passaro M., Sanchez L., Dettmering D., Dangendorf S., Seitz F.: Regional variations in relative sea-level changes influenced by nonlinear vertical land motion. Nature Geoscience, 137–144, 10.1038/s41561-023-01357-2, 2024 (Open Access)

Sehnal M., Sánchez L., Angermann D., Craddock A., Miyahara B., Steiner L.: Emphasizing the Value of Geodesy to Science and Society Through IAG-GGOS. In: Freymueller J., Sánchez L. (Eds.), International Association of Geodesy Symposia, 10.1007/1345_2024_243, 2024

Sánchez L., Barzaghi R., Vergos G.: Operational Infrastructure to Ensure the Long-Term Sustainability of the International Height Reference System and Frame (IHRS/IHRF). International Association of Geodesy Symposia, 157(157), 10.1007/1345_2024_250, 2024

Sánchez L., Barzaghi R.: Achievements of the GGOS Focus Area Unified Height System. International Association of Geodesy Symposia, 157(157), 10.1007/1345_2024_249, 2024

Sánchez L., Miyahara B., Craddock A., Sehnal M., Angermann D., Gross R., Schuh H.: GGOS Strategic Plan 2024-2034. GGOS Coordinating Office, 10.5281/zenodo.10571157, 2024

Sánchez L., Sehnal M., Angermann D., Rodríguez J.: GGOS Implementation Plan, Phase 2024 - 2027. Zenodo, 10.5281/zenodo.1378510, 2024

(Open Access)

Sánchez L.: Geoid’s Potential Value W0. In: Sideris M. (Eds.), Encyclopedia of Geodesy, 10.1007/978-3-319-02370-0_66-1, 2024

Sánchez L.: Height Systems. In: Sideris M. (Eds.), Encyclopedia of Geodesy, 10.1007/978-3-319-02370-0_49-1, 2024

Teitsson H., Sánchez L., Forsberg R.: Densification of the IHRF in Denmark, The Faroe Islands, and Greenland. In: (Eds.), International Association of Geodesy Symposia, 10.1007/1345_2024_255, 2024

2023

Costa S.M., Sánchez L., Piñón D., Tarrio-Mosquera J.A., Guimarães G., Gómez D., Drewes H., Mackern-Oberti M.V., Antokoletz E.D., de Matos A.C.O.C., Blitzkow D., da Silva A., Inzunza J., España D., Rodríguez O., Rozas-Bornes S., Guagni H., González G., Paucar-Llaja O., Pampillón J.M., Alvarez-Calderón A.: Status of the SIRGAS Reference Frame: Recent Developments and New Challenges. International Association of Geodesy Symposia, 10.1007/1345_2023_227, 2023 (Open Access)

Oelsmann J., Marcos M., Passaro M., Sanchez L., Dettmering D., Dangendorf S., Seitz F.: Data supplement to 'Vertical land motion reconstruction unveils non-linear effects on relative sea level changes from 1900-2150' (data). Zenodo, 10.5281/zenodo.8308346, 2023 (Open Access)

Sehnal M., Angermann D., Sánchez L., Miyahara B.: GGOS Contribution to Promote Geodesy and Increase its Visibility in Science and Society. Österreichische Zeitschrift für Vermessung & Geoinformation, 2023

Sánchez L., Wziontek H., Wang Y.M., Vergos G., Timmen L.: Towards an integrated global geodetic reference frame: preface to the special issue on reference systems in physical geodesy. Journal of Geodesy, 97(6), 10.1007/s00190-023-01758-6, 2023 (Open Access)

Sánchez L.: SIRGAS Regional Network Associate Analysis Centre, Technical Report 2022. IGS Technical Report 2022, 10.48350/179297, 2023 (Open Access)

2022

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P., Gross R., Heki K., Marti U., Schuh H., Sehnal M., Thomas M.: GGOS Bureau of Products and Standards: Description and Promotion of Geodetic Products. In: Freymueller J., Sánchez L. (Eds.), IAG Symposia, 10.1007/1345_2022_144, 2022

Kehm A., Sánchez L., Bloßfeld M., Seitz M., Drewes H., Angermann D., Seitz F.: Combination Strategy for the Geocentric Realization of Regional Epoch Reference Frames. Journal of Geophysical Research: Solid Earth, 127(10), e2021JB023880, 10.1029/2021jb023880, 2022 (Open Access)

Liu Q., Schmidt M., Sánchez L.: Combination of different observation types through a multi-resolution representation of the regional gravity field using the pyramid algorithm and parameter estimation. Journal of Geodesy, 96(10), 10.1007/s00190-022-01670-5, 2022 (Open Access)

Oelsmann J., Passaro M., Sanchez L., Dettmering D., Schwatke C., Seitz F.: Piecewise trends and discontinuities in GNSS and SATTG time series (data). SEANOE. , 10.17882/90028, 2022

Oelsmann J., Passaro M., Sanchez L., Dettmering D., Schwatke C., Seitz F.: Piecewise trends and discontinuities in GNSS and SATTG time series (data). SEANOE, 10.17882/90028, 2022 (Open Access)

Oelsmann J., Passaro M., Sánchez L., Dettmering D., Schwatke C., Seitz F.: Bayesian modelling of piecewise trends and discontinuities to improve the estimation of coastal vertical land motion. Journal of Geodesy, 96(9), 10.1007/s00190-022-01645-6, 2022 (Open Access)

Sánchez L., Drewes H., Kehm A., Seitz M.: SIRGAS reference frame analysis at DGFI-TUM. Journal of Geodetic Science, 12(1), 92–119, 10.1515/jogs-2022-0138, 2022 (Open Access)

Sánchez L.: SIRGAS Regional Network Associate Analysis Centre Technical Report 2021. IGS Technical Report 2021, 129-141, 10.48350/169536, 2022

2021

Oelsmann J., Passaro M., Dettmering D., Schwatke C., Sánchez L., Seitz F.: The zone of influence: matching sea level variability from coastal altimetry and tide gauges for vertical land motion estimation. Ocean Science, 17(1), 35--57, 10.5194/os-17-35-2021, 2021

(Open Access)

Sánchez L.: Das neue Internationale Höhenreferenzsystem (IHRS). FORUM: Zeitschrift des Bundes der Öffentlich bestellten Vermessungsingenieure e.V., 3(3/2021), 4-13, 2021

Sánchez L., Kehm A.: SIRGAS Regional Network Associate Analysis Centre (IGS RNAAC SIRGAS) Technical Report 2020. International GNSS Service Technical Report 2020, 135-146, 10.48350/156425, 2021

Sánchez L., Ågren J., Huang J., Wang Y.M., Mäkinen J., Pail R., Barzaghi R., Vergos G.S., Ahlgren K., Liu Q.: Strategy for the realisation of the International Height Reference System (IHRS). Journal of Geodesy, 95(3), 10.1007/s00190-021-01481-0, 2021

(Open Access)

Wang Y.M., Sánchez L., Ågren J., Huang J., Forsberg R., Abd-Elmotaal H.A., Ahlgren K., Barzaghi R., Bašić T., Carrion D., Claessens S., Erol B., Erol S., Filmer M., Grigoriadis V.N., Isik M.S., Jiang T., Koç Ö., Krcmaric J., Li X., Liu Q., Matsuo K., Natsiopoulos D.A., Novák P., Pail R., Pitoňák M., Schmidt M., Varga M., Vergos G.S., Véronneau M., Willberg M., Zingerle P.: Colorado geoid computation experiment: overview and summary. Journal of Geodesy, 95(12), 10.1007/s00190-021-01567-9, 2021

(Open Access)

2020

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: Bureau of Products and Standards: Inventory of standards and conventions used for the generation of IAG products. The Geodesists' Handbook 2020, Journal of Geodesy, 94(11), 221–292, 10.1007/s00190-020-01434-z, 2020

(Open Access)

Liu Q., Schmidt M., Sánchez L., Willberg M.: Regional gravity field refinement for (quasi-) geoid determination based on spherical radial basis functions in Colorado. Journal of Geodesy, 94(10), 10.1007/s00190-020-01431-2, 2020

(Open Access)

Sánchez L., Drewes H.: Geodetic Monitoring of the Variable Surface Deformation in Latin America. International Association of Geodesy Symposia Series, 1-12, 10.1007/1345_2020_91, 2020

(Open Access)

Sánchez L.: SIRGAS Regional Network Associate Analysis Centre Technical Report 2019. Villiger A., Dach R. (eds.) International GNSS Service: Technical Report 2019, 125-136, 10.7892/BORIS.144003, 2020 (Open Access)

2019

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sanchez L., Steigenberger P.: GGOS Bureau of Products and Standards. In: Drewes H., Kuglitsch F. (Eds.), Travaux de l'AIG 41, 2019

Sánchez L.: Report of the GGOS Focus Area Unified Height System and the Joint Working Group 0.1.2: Strategy for the Realization of the International Height Reference System (IHRS). Reports 2015-2019 of the International Association of Geodesy (IAG), Travaux de l'AIG, Global Geodetic Observing System (GGOS), 42-51, 2019

Sánchez L.: SIRGAS Regional Network Associate Analysis Centre Technical Report 2018. Villiger A., Dach R. (Eds.), International GNSS Service Technical Report 2018 (IGS Annual Report), 109 - 125, 10.7892/boris.130408, 2019

2018

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: GGOS Bureau of Products and Standards: Recent Activities and Future Plans. In: Freymueller J., Sánchez L. (Eds.), International Symposium on Advancing Geodesy in a Changing World, 10.1007/1345_2018_28 , 2018

Sánchez L.;Völksen Ch.;Sokolov A.;Arenz H.;Seitz F.: Present-day surface deformation of the Alpine region inferred from geodetic techniques. Earth System Science Data, 10(3), 1503-1526, 10.5194/essd-10-1503-2018, 2018

(Open Access)

Sánchez L.: SIRGAS Regional Network Associate Analysis Centre, Technical Report 2017. Villiger A., Dach R. (Eds.), International GNSS Service Technical Report 2017 (IGS Annual Report), 117 - 122, 10.7892/boris.116377, 2018

2017

Angermann D., Gruber T., Gerstl M., Hugentobler U., Heinkelmann R., Sanchez L., Steigenberger P.: GGOS Bureau of Products and Standards. In: Drewes H., Kuglitsch F. (Eds.), Travaux de l’AIG 40, 2017

Ihde J., Sánchez L., Barzaghi R., Drewes H., Foerste Ch., GruberT., Liebsch G., Marti U., Pail R., Sideris M.: Definition and proposed realization of the International Height Reference System (IHRS). Surveys in Geophysics, 38(3), 549-570, 10.1007/s10712-017-9409-3, 2017

Schöne T., Bingley R., Deng Z., Gravelle M., Griffiths J., Guichard M., Habrich H., Hansen D., Herring T., Hunegnaw A., Jia M., King M., Merrifield M., Mitchum G., Moore M., Neilan R., Noll C., Prouteau E., Sánchez L., Santamaría-Gómez A., Teferle N., Thaller D., Tregoning P., Williams S., Wöppelmann G.: Tide Gauge Benchmark Monitoring Working Group, Technical Report. In: Villiger A., Dach R. (eds.), International GNSS Service Technical Report 2016 (IGS Annual Report), 185-187, 10.7892/boris.99278, 2017

Sánchez L., Martí U., Ihde J.: Le chemin vers un système de référence altimétrique global et unifié. Revue XYZ, 150, 61-67, 2017

Sánchez L., Sideris M.G.: Vertical datum unification for the International Height Reference System (IHRS) . Geophysical Journal International, 209(2), 570-586, 10.1093/gji/ggx025 , 2017

Sánchez L.: Focus Area “Unified Height System” and JWG 0.1.2 “Strategy for the Realization of the International Height Reference System (IHRS)”. Travaux of the International Association of Geodesy, 376-379, 2017

Sánchez L.: SIRGAS Regional Network Associate Analysis Centre, Technical Report 2016. In: Villiger A., Dach R. (eds.), International GNSS Service Technical Report 2016 (IGS Annual Report), 105-114, 10.7892/boris.99278, 2017

Sánchez L.: Status report: GGOS Focus Area 1: Unified Height System, and JWG 0.1.2: Strategy for the Realization of the International Height Reference System (IHRS). Global Geodetic Observing System (GGOS), International Association of Geodesy (IAG), 2017

2016

Angermann D., Gerstl M., Sánchez L., Gruber T., Hugentobler U., Steigenberger P., Heinkelmann R.: GGOS Bureau of Products and Standards: Inventory of standards and conventions for geodesy. In: Rizos C., Willis P. (Eds.) IAG 150 Years, IAG Symposia, 143, 571-577, 10.1007/1345_2015_165, 2016

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: GGOS Bureau of Products and Standards: Inventory of standards and conventions used for the generation of IAG products. The Geodesists' Handbook 2016, Journal of Geodesy, 90(10), 1095-1156, 10.1007/s00190-016-0948-z, 2016

Schöne T., Bingley R., Deng Z., Gravelle M., Griffiths J., Guichard M., Habrich H., Hansen D., Hunegnaw A., Jia M., King M., Merrifield M., Mitchum G., Neilan R., Noll C., Prouteau E., Sánchez L., Santamaría-Gómez A., Teferle N., Thaller D., Tregoning P., Williams S., Wöppelmann G.: Tide Gauge Benchmark Monitoring Working Group Technical Report 2015. In: Jean Y., Dach R. (Eds.) International GNSS Service Technical Report 2015, 195-196, 10.7892/boris.80307, 2016

Sánchez L., Drewes H., Brunini C., Mackern M.V., Martínez-Díaz W.: SIRGAS core network stability. In: Rizos C., Willis P. (Eds.) IAG 150 Years, IAG Symposia, 143, 183-190, 10.1007/1345_2015_143, 2016

Sánchez L., Drewes H.: Crustal deformation and surface kinematics after the 2010 earthquakes in Latin America, links to crustal deformation model VEMOS2015 files. PANGAEA, 10.1594/PANGAEA.862536, 2016 (Open Access)

Sánchez L., Drewes H.: Crustal deformation and surface kinematics after the 2010 earthquakes in Latin America. Journal of Geodynamics, 102, 1-23, 10.1016/j.jog.2016.06.005, 2016

Sánchez L., Čunderlík R., Dayoub N., Mikula K., Minarechová Z., Šíma Z., Vatrt V., Vojtíšková M.: A conventional value for the geoid reference potential W0. Journal of Geodesy, 90(9), 815-835, 10.1007/s00190-016-0913-x, 2016

Sánchez L.: SIRGAS Regional Network Associate Analysis Center Technical Report 2015. In: Jean Y., Dach R. (Eds.) International GNSS Service Technical Report 2015, 111-121, 10.7892/boris.80307, 2016

2015

Ihde J., Barzaghi R., Marti U., Sánchez L., Sideris M., Drewes H., Foerste C., Gruber T., Liebsch G., Pail R.: Report of the Ad-hoc Group on an International Height Reference System (IHRS). In: Drewes H., Hornik H. (Eds.) Travaux de l'AIG 39, IAG Reports 2011-2015, 2015

Schöne T., Bingley R., Deng Z., Griffiths J., Habrich H., Hunegnaw A., Jia M., King M., Merrifield M., Mitchum G., Neilan R., Noll C., Prouteau E., Sánchez L., Teferle N., Thaller D., Tregoning P., Williams S., Wöppelmann G., Woodworth P.: Tide Gauge Benchmark Monitoring Working Group Technical Report 2014. In: Jean Y., Dach R. (Eds.) International GNSS Service Technical Report 2014, 187-202, IGS Central Bureau, 2015

Seitz M., Angermann D., Gerstl M., Bloßfeld M., Sánchez L., Seitz F.: Geometrical Reference Systems. In: Freeden W., Nashed M.Z., Sonar T. (Eds.) Handbook of Geomathematics (Second Edition), Springer, pp 2995-3034, 2995-3034, 10.1007/978-3-642-54551-1_79, 2015

Sánchez L., Dayoub N., Cunderlík R., Minarechová Z., Mikula K., Vatrt V., Vojtísková M., Síma Z.: Report of Joint Working Group 0.1.1: Vertical Datum Standardization (JWG 0.1.1). In: Drewes H., Hornik H. (Eds.) Travaux de l'AIG 39, IAG Reports 2011-2015, 2015

Sánchez L.: Ein einheitliches vertikales Referenzsystem für Südamerika im Rahmen eines globalen Höhensystems. Technische Universität Dresden, http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-162350, 2015

Sánchez L.: SIRGAS Regional Network Associate Analysis Center Technical Report 2014. In: Jean Y., Dach R. (Eds.) International GNSS Service Technical Report 2014, 101-110, IGS Central Bureau, 2015

2014

Sánchez L., Dayoub N., Cunderlík R., Minarechová Z., Mikula K., Vatrt V., Vojtísková M., Síma Z.: W0 estimates in the frame of the GGOS Working Group on Vertical Datum Standardisation. In: Marti U. (Ed.) Gravity, Geoid and Height Systems (GGHS2012), IAG Symposia 141: 203-210, 10.1007/978-3-319-10837-7_26, 2014

Sánchez L.: IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR). In: Dach R., Jean Y. (Eds.) International GNSS Service Technical Report 2013, 103-114, 2014

2013

Angermann D., Seitz M., Bloßfeld M., Sánchez L., Seitz F.: Die Gestalt der Erde. Akademie Aktuell 02/2013: 28-31, Bayerische Akademie der Wissenschaften, ISSN 1436-753X, 2013

(Open Access)

Brunini C., Sánchez L.: Geodetic reference frame for the Americas. GIM International 27(3): 26-31, ISSN 1566-9076, 2013

Bruyninx C., Legrand J., Altamimi Z., Becker M., Craymer M., Combrinck L., Combrink A., Dawson J., Dietrich R., Fernandes R., Govind R., Griffiths J, Herring T., Kenyeres A., King R., Kreemer C., Lavallée D., Sánchez L., Sella G., Shen Z., Santamaría-Gómez A., Wöppelmann G.: IAG WG SC1.3 on Regional Dense Velocity Fields: first results and steps ahead. In: Altamimi Z., Collilieux X. (Eds.) Reference Frames for Applications in Geosciences, IAG Symposia 138: 137-145, Springer, 10.1007/978-3-642-32998-2_22, 2013

Sánchez L., Seemüller W., Drewes H., Mateo L., González G., Silva A., Pampillón J., Martinez W., Cioce V., Cisneros D., Cimbaro S.: Long-term stability of the SIRGAS reference frame and episodic station movements caused by the seismic activity in the SIRGAS region. In: Altamimi Z., Collilieux X. (Eds.) Reference Frames for Applications in Geosciences, IAG Symposia 138: 153-161, Springer, 10.1007/978-3-642-32998-2_24, 2013

Sánchez L.: IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR). In: Dach R., Jean Y. (Eds.) International GNSS Service Technical Report 2012, 111-120, IGS Central Bureau, 2013

Sánchez L.: Towards a vertical datum standardisation under the umbrella of Global Geodetic Observing System. Journal of Geodetic Science 2(4): 325-342, Versita, 10.2478/v10156-012-0002-x, 2013

2012

Brunini C., Sánchez L., Drewes H., Costa S.M.A., Mackern V., Martinez W., Seemüller W., da Silva: Improved analysis strategy and accessibility of the SIRGAS Reference Frame. Kenyon S., M.C. Pacino, U. Marti (Eds.), "Geodesy for Planet Earth", IAG Symposia, 136: 3-10, 10.1007/978-3-642-20338-1_1, 2012

Brunini C., Sánchez L.: Geodetic activities in Latin America and The Caribbean: always IN. Coordinates, Vol. VIII, Issue 6, 14-21, June. ISSN 0973-2136, 2012

Bruyninx C., Altamimi Z., Becker M., Craymer M., Combrinck L., Combrink A., Dawson J., Dietrich R., Fernandes R., Govind R., Herring T., Kenyeres A., King R., Kreemer C., LavallÃ©e D., Legrand J., Sánchez L., Sella G., Shen Z., Santamaría-Gómez A., Wöppelmann G.: A dense global velocity field based on GNSS observations: preliminary results. In: Kenyon S., M.C. Pacino, U. Marti (Eds.), "Geodesy for Planet Earth", IAG Symposia, 136: 19-26, 10.1007/978-3-642-20338-1_3, 2012

Seemüller W., Seitz M., Sánchez L., Drewes H.: The new Multi-year Position and Velocity Solution SIR09P01 of the IGS Regional Network Associate Analysis Centre (IGS RNAAC SIR). Kenyon S., M.C. Pacino, U. Marti (Eds.), "Geodesy for Planet Earth", IAG Symposia, 136: 877-883, 10.1007/978-3-642-20338-1_110, 2012

Sánchez L., Seemüller W., Seitz M.: Combination of the Weekly Solutions Delivered by the SIRGAS Processing Centres for the SIRGAS-CON Reference Frame. In: Kenyon S., M.C. Pacino, U. Marti (Eds.), "Geodesy for Planet Earth", IAG Symposia, 136: 845-851, 10.1007/978-3-642-20338-1_106, 2012

Sánchez L.: IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR). Report of activities 2011. In: Meindl, M., R. Dach, Y. Jean (Eds.), International GNSS Service, Technical Report 2011; Astronomical Institute, University of Bern, p. 107-115. Available at ftp://igs.org/pub/resource/pubs/2011_techreport.pdf., 2012

2011

Drewes H., Sánchez L., Brunini C., Mackern V.: Como mitigar el impacto de eventos sÃsmicos en los marcos de referencia?. ReuniÃ³n SIRGAS, Heredia, Costa Rica, 2011

Sánchez L., Brunini C., Mackern V., Martinez W., Luz R.: SIRGAS: the geocentric reference frame of the Americas.. In: Proceedings of the International Symposium on Global Navigation Satellite Systems, Space-Based and Ground-Based Augmentation Systems and Applications 2010. Brussels, Belgium. November 29-30, 2010. Berlin Senate Department for Urban Development. P. 21-25., 2011

Sánchez L., Seitz M., Drewes H.: CinemÃ¡tica del marco de referencia SIRGAS. ReuniÃ³n SIRGAS, Heredia, Costa Rica, 2011

Sánchez L., Seitz M.: Recent activities of the IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR). DGFI Report No. 87., 2011

2010

Angermann D., Bloßfeld M., Bosch W., Gerstl M., Heinkelmann R., Kelm R., Müller H., Sánchez L., Seemüller W., Seitz M.: DGFI-Beteiligung an den wissenschaftlichen Diensten der IAG. Zeitschrift für Vermessungswesen, 135, Heft 2, 2010

Bouman J., Bosch W., Goebel G., Müller H., Sánchez L., Schmidt M., Sebera J.: Das Schwerefeld der Erde - Messen, Darstellen und Auswerten. Zeitschrift für Vermessungswesen, 135, Heft 2, 2010

Drewes H., Brunini C., Sánchez L., Mackern V., Martinez W.: Uso de las coordenadas SIRGAS en los marcos nacionales de referencia. http://www.sirgas.org/fileadmin/docs/Boletines/Bol15/05_Drewes_et_al_Uso_de_SIRGAS_en_marcos_naionales.pdf, 2010

Figueroa C., Amaya W., Sánchez L.: IntegraciÃ³n de la Red GeodÃ©sica BÃ¡sica Nacional de El Salvador a SIRGAS (SIRGAS-ES2007). Revista CartogrÃ¡fica del Instituto Panamericano de GeografÃa e Historia (IPGH), No. 86. 26-39 p. MÃ©xico D.F., MÃ©xico, 2010

Seemüller W., Arenz H., Bosch W., Hornik H., Leismüller F., Müller H., Sánchez L., Schwatke C.: Informationstechnologien und Kommunikation am DGFI. Zeitschrift für Vermessungswesen, 135, Heft 2, 2010

Seemüller W., Sánchez L., Seitz M., Drewes H.: The position and velocity solution of the IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR). DGFI Report No. 86, 2010

Sánchez L., Drewes H.: Wie sich die Alpen bewegen. Akademie Aktuell. Bayerische Akademie der Wissenschaften. Heft 3, Aufgabe 34: 71-72. Munich, 2010

Sánchez L., Seemüller W., Seitz M., Forberg B., Leismüller F., Arenz H.: SIRGAS: das Bezugssystem für Lateinamerika und die Karibik. Zeitschrift für Vermessungswesen, 135, Heft 2, 2010

Sánchez L., Seemüller W.: Report of the SIRGAS Analysis Centre at DGFI. SIRGAS 2010 General Meeting. www.sirgas.org, 2010

2009

Martínez W.A., Sánchez L.: Realization of the SIRGAS Reference Frame in Colombia. In: Drewes H. (Ed.): Geodetic Reference Frames, IAG Symposia 134: 185-190, Springer, 10.1007/978-3-642-00860-3_29, 2009

Seemüller W., Sánchez L.: SIRGAS Processing Centre at DGFI: Report for the SIRGAS 2009 General Meeting.. SIRGAS Newsletter 14, http://www.sirgas.org/fileadmin/docs/Boletines/Bol14/, 2009

Sánchez L., Bosch W.: The role of the TIGA project in the unification of classical height systems. In: Drewes H. (Ed.): Geodetic Reference Frames, IAG Symposia 134: 285-290, Springer, 10.1007/978-3-642-00860-3_44, 2009

Sánchez L., Brunini C.: Achievements and challenges of SIRGAS. In: Drewes H. (Ed.): Geodetic Reference Frames, IAG Symposia 134: 161-166, Springer, 10.1007/978-3-642-00860-3_25, 2009

Sánchez L., Brunini C.: SIRGAS: Basis for geosciences, geodata and navigation in Latin America.. Proceedings of the International Symposium on Global Navigation Satellite Systems, Space-based and Ground-based Augmentation Systems and Applications. Berlin, 11-14 November. Berlin Senate Department for Urban Development. P. 37 - 39., 2009

Sánchez L., Seemüller W., Seitz M.: SIRGAS Combination Centre at DGFI: Report for the SIRGAS 2009 General Meeting.. SIRGAS Newsletter 14, http://www.sirgas.org/fileadmin/docs/Boletines/Bol14/, 2009

Sánchez L.: Report on the IAG Symposium S5 'Geodesy in Latin America' at the IAG General Assembly 2009 'Geodesy for planet Earth' in Bueno Aires Argentina. zfv 134: 378-379, 2009

Sánchez L.: Strategy to establish a global vertical reference system. In: Drewes H. (Ed.): Geodetic Reference Frames, IAG Symposia 134: 273-278, Springer, 10.1007/978-3-642-00860-3_42, 2009

2008

Brunini C., Sánchez L.: SIRGAS: Reporte 2007-2008. SIRGAS Newsletter No. 13, www.sirgas.org/fileadmin/docs/Boletines/Boletin_SIRGAS_N0._13__Reporte_2007_-_2008_.pdf, 2008

Sánchez L., Seemüller W., Seitz M.: Comparison and combination of the weekly solutions delivered by the SIRGAS Experimental Processing Centres. No. 80, 77p., DGFI Report, DGFI, Munich, 2008

Sánchez L.: Approach for the establishment of a global vertical reference level. In: Xu P., Liu J., Dermanis A. (eds.) VI Hotine-Marussi Symposium on Theoretical and Computational Geodesy, IAG Symposia 132: 119-125, Springer, 10.1007/978-3-540-74584-6_18, 2008

2007

Schmidt M., Fengler M., Mayer-Gürr T., Eicker A., Kusche J., Sánchez L., Han S.C.: Regional gravity modeling in terms of spherical base functions. Journal of Geodesy 81(1): 17-38, 10.1007/s00190-006-0101-5, 2007

Sánchez L.: Definition and realisation of the SIRGAS Vertical Reference System within a globally unified height system. In: Tregoning P., Rizos C. (eds.) Dynamic Planet, IAG Symposia 130: 638-645, Springer, 10.1007/978-3-540-49350-1_92, 2007

Sánchez L.: RealizaciÃ³n del nivel de referencia vertical para SIRGAS dentro de una definiciÃ³n global. V. 37: 18-25, Reista Analisis Geograficos, IGAC, Bogota, 2007

2006

Fortes L.P., Lauria E., Brunini C., Hernandez A., Sánchez L., Drewes H., Seemüller W.: Current status and future developments of the SIRGAS project. Wiss.Arb.Fachr.Verm., Univ. Hannover, Nr. 258, 59-70, 2006

Schmidt M., Han S.-C., Kusche J., Sánchez L., Shum C.K.: Regional high-resolution spatio-temporal gravity modeling from GRACE data using spherical wavelets. Geophysical Research Letters 33(8), L08403, 10.1029/2005GL025509, 2006

2005

Fortes L.P., Lauria E., Brunini C., Hernandez A., Sánchez L., Drewes H., Seemüller W.: El proyecto internacional SIRGAS: estado actual y objetivos futuros. United Nations Document E/CONF.96/I.P.16, New York, USA, 2005

Ihde J., Sánchez L.: A unified global height reference system as a basis for IGGOS. Journal of Geodynamics 40(4-5): 400-413, 10.1016/j.jog.2005.06.015, 2005

2002

Drewes H., Dodson A.H., Fortes L.P., Sánchez L., Sandoval P.: Vertical Reference Systems. IAG Symposia, Vol. 124, 352 pp, Springer, 10.1007/978-3-662-04683-8, 2002

Drewes H., Sánchez L., Blitzkow D., Freitas S.: Scientific foundations of the SIRGAS vertical reference system. In: Drewes H., Dodson A.H., Fortes L.P., Sánchez L., Sandoval P. (Eds.): Vertical Reference Systems, IAG Symposia 124: 297-301, Springer, 10.1007/978-3-662-04683-8_55, 2002

Hernandez J.N., Blitzkow D., Luz R., Sánchez L., Sandoval P., Drewes H.: Connection of the vertical control networks of Venezuela, Brazil and Colombia. In: Drewes H., Dodson A.H., Fortes L.P., Sánchez L., Sandoval P. (Eds.): Vertical Reference Systems, IAG Symposia 124: 324-327, Springer, 10.1007/978-3-662-04683-8_60, 2002

Kaniuth K., Häfele P., Sánchez L.: Subsidence of the permanent GPS station Bogotá. In: Drewes H., Dodson A.H., Fortes L.P., Sánchez L., Sandoval P. (Eds.): Vertical Reference Systems, IAG Symposia 124: 56-59, Springer, 10.1007/978-3-662-04683-8_12, 2002

2001

Sánchez L., Drewes H.: International Symposium on Vertical Reference Systems. Cartagena, Colombia, 20-23 February 2001. Journal of Geodesy 75(12): 679-680, 10.1007/s001900100236, 2001

Posters/Presentations

2024

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: GGOS Bureau of Products and Standards: Recent activities and future plans. European Geosciences Union General Assembly 2024, Vienna, Austria, 2024 (Poster)

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: Updates from the GGOS Bureau of Products and Standards (BPS). GGOS Days 2024, Potsdam, Germany, 2024

Bloßfeld M., Seitz M., Sánchez L., Angermann D., Kehm A., Glomsda M., Rudenko S., Zeitlhöfler J.: Reference systems research - highlights (from the DGFI-TUM perspective) -. FGS Workshop 2024, Bad Kötzting, 2024

Brown N., Dostal J., Jørgensen A., Kowal S., Rodríguez J.C., Angermann D., Lidberg M., Riddell A., Sánchez L., Sehnal M.: The UN Global Geodetic Centre of Excellence: objectives, activities and synergies with the Global Geodetic Observing System. Hispanic-Portuguese Assembly of Geodesy and Geophysics, Évora, Portugal, 2024

Craddock A.B., Gross R.S., Sehnal M., Rodríguez J.C., Angermann D., Sánchez L., Peidou A.: The Global Geodetic Observing System: Facilitating Opportunities for Strategic Outreach, Collaboration, and Engagement with External Stakeholders. Symposium Gravity Geoid and Height Systems 2024 - GGHS2024, 2024 (Poster)

Gruber T., Angermann D., Sánchez L.: Definition of Essential Geodetic Earth Observation Variables with Emphasis to the Earth Gravity Field. Symposium Gravity Geoid and Height Systems 2024 - GGHS2024, Thessaloniki, Greece, 2024

Liu Q., Schmidt M., Sánchez L.: Methods for geoid determination in regions with challenging data quality and coverage. European Geosciences Union General Assembly 2024, Vienna, Austria, 2024 (Poster)

Sánchez L., Angermann D., Gruber Th.: FGS-Beiträge zu IAG and GGOS. Forschungsgruppe Satellitengeodäsie Workshop 2024, Bad Kötzting, Germany, 2024

Sánchez L., Angermann D., Sehnal M., Rodríguez J.C., Lidberg M.: The Global Geodetic Observing System of the International Association of Geodesy. EUREF Symposium 2024, Barcelona, Spain, 2024

Sánchez L., Barzaghi R., Vergos G.: Towards a first solution for the International Height Reference Frame (IHRF). Symposium Gravity Geoid and Height Systems 2024 - GGHS2024, Thessaloniki, Greece, 2024

Sánchez L., Liu Q., Niedermaier J., Gruber T., Pail R., Schmidt M.: Roadmap for geopotential-based height systems. Symposium Gravity Geoid and Height Systems 2024 - GGHS2024, 2024 (Poster)

Sánchez L., Liu Q., Schmidt M., Niedermaier J., Pail R., Gruber Th.: Regionale Schwerefeldmodellierung und physikalische Höhen - Highlights -. Forschungsgruppe Satellitengeodäsie Workshop 2024, Bad Kötzting, Germany, 2024

Sánchez L., Miyahara B.: The International VLBI Service for Geodesy and Astrometry (IVS) and the Global Geodetic Observing System (GGOS). International VLBI Service for Geodesy and Astrometry (IVS) 25th Anniversary Event, Tsukuba, Japan, 2024

Sánchez L., Pearlman M., Angermann D., Sehnal M., Gruber T., Soja B., Riddell A., Elger K., Gross R., Heki K., Ferrandíz J.M, Schmidt M., Melbourne T., Craddock A., Miyahara B.: GGOS: Ensuring a Coherent Earth Observation System. European Geosciences Union General Assembly 2024, Vienna, Austria, 2024

Sánchez L., Riddell A., Rodríguez J., Angermann D., Sehnal M., Lidberg M., Gruber T., Soja B., Schmidt M., Melbourne T., Gross R., Ferrandíz J.M., Craddock A., Miyahara B., Vergos G., Tocho C.: GGOS: The Global Observing System of the International Association of Geodesy. Symposium Gravity Geoid and Height Systems 2024 - GGHS2024, 2024 (Poster)

Sánchez L., Riddell A., Sehnal M.: GGOS Report to the Executive Committee of the International Association of Geodesy. IAG Executive Committee Meeting, Vienna, Austria, 2024

Sánchez L.: Business Report to the GGOS Governing Board. GGOS Governing Board and Bureaus Meetings, Vienna, Austria, 2024

Sánchez L.: GGOS Days 2024: Closing. GGOS Days 2024, Potsdam, Germany, 2024

Sánchez L.: GGOS Days 2024: Opening address. GGOS Days 2024, Potsdam, Germany, 2024

Sánchez L.: GGOS Topical Meeting on the Atmosphere: Opening address. GGOS Topical Meeting on the Atmosphere, Potsdam, Germany, 2024

Sánchez L.: Status report on the Global Geodetic Observing System (GGOS). International Association of Geodesy Executive Committee Meeting, Thessaloniki, Greece, 2024

Sánchez L.: The International Height Reference System - IHRS - and its realisation, the IHRF. Guest Lecture, Colloquium on Geodesy, Universidad Distrital Francisco José de Caldas, Bogotá, Colombia, 2024

Sánchez L.: Towards a GGOS Implementation Plan 2024 – 2027. GGOS Governing Board and Bureaus Meetings, Vienna, Austria, 2024

Sánchez L.: Updating GGOS Strategy and Implementation. GGOS Days 2024, Potsdam, Germany, 2024

Vergos G.S., Sánchez L., Barzaghi R., and the IHRF team: IHRF Coordination Center, a newly established IAG/IGFS component to ensure the sustainability of the IHRS/IHRF . European Geosciences Union General Assembly 2024, Vienna, Austria, 2024

Vergos G.S., Sánchez L., Barzaghi R., and the IHRF team: The IHRF CC to ensure the long-term sustainability of the IHRS/IHRF. Symposium Gravity Geoid and Height Systems 2024 - GGHS2024, 2024 (Poster)

Vergos G.S., Sánchez L., BarzaghiR., and the IHRF team: Coordination Centre for the IHRF. GGOS Days 2024, Potsdam, Germany, 2024

2023

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sanchez L., Steigenberger P.: Role and Activities of the GGOS Bureau of Products and Standards. European Geosciences Union General Assembly 2023, European Geosciences Union, Vienna, Austria, 10.5194/egusphere-egu23-13114, 2023

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sanchez L., Steigenberger P., Schuh H., Sehnal M.: The importance of highly-accurate and consistent geodetic products for reliable Earth system monitoring. 28th IUGG General Assembly, International Union of Geodesy and Geophysics, Berlin, Germany, 2023

Drewes H., Seitz M., Sánchez L.: Realisation of the Non-Rotating Terrestrial Reference Frame by an Actual Plate Kinematic and Crustal Deformation Model (APKIM2020). International Union of Geodesy and Geophysics ,28th General Assembly, IUGG2023, IUGG, Berlin, Germany, 2023

Kehm A., Sánchez L., Bloßfeld M., Seitz M., Drewes H., Angermann D., Seitz F.: Combination strategy for regional geocentric epoch reference frames. European Geosciences Union General Assembly 2023, European Geosciences Union, Vienna, Austria, 2023

Liu Q., Schmidt M., Sánchez L.: An improved realization of the pyramid algorithm for the spectral combination of heterogeneous gravity observations through the MRR. American Geophysical Union, 2023

Liu Q., Schmidt M., Sánchez L.: Regional gravity field refinement based on a novel multi-resolution representation scheme using the pyramid algorithm. 28th IUGG General Assembly, Berlin, Germany, 2023

Miyahara B., Sánchez L., Sehnal M., Craddock A.: The Global Geodetic Observing System (GGOS) - infrastructure for sustainable Earth observation -. European Geosciences Union General Assembly 2023, Vienna, Austria, 2023

Oelsmann J., Marcos M., Passaro M., Sanchez L., Dettmering D., Seitz F.: Vertical land motion reconstruction unveils nonlinear effects on relative sea level. Coastal Altimetry Workshop and Coastal Altimetry Training, Cadiz, Spain, 2023

Sánchez L., Barzaghi R., Vergos G.S.: Operational infrastructure to ensure the long-term sustainability of the International Height Reference System and Frame – IHRS/IHRF. International Union of Geodesy and Geophysics ,28th General Assembly, IUGG2023, IUGG, Berlin, Germany, 2023

Sánchez L., Craddock A., Angermann D., Miyahara B., Gross R., Sehnal M., Schuh H.: GGOS Strategic Plan 2023-2033. GGOS Days 2023, Global Geodetic Observing System - GGOS, Alcalá de Henares, Spain, 10.5281/zenodo.8414071, 2023 (Open Access)

Sánchez L., Huang J., Barzaghi R., Vergos G.S., on behalf of the IHRF computation team: Advances in the determination of a global unified reference frame for physical heights. European Geosciences Union General Assembly 2023, Vienna, Austria, 2023 (Poster)

Sánchez L., Huang J., Barzaghi R., Vergos G.S., Ågren J., Forsberg R., Teitsson H., Mäkinen J., Véronneau M., Wang Y.M., Denker H., Schwabe J., Bilker-Koivula M., Abd-Elmotaal H., Tocho C., Gómez A., Antokoletz E., Avalos-Naranjo D., Amos M., Winefield R., Matos A.C.O.C, Blitzkow D., Guimarães G., Silva V., McCubbine J., Claessens S., Filmer M., Jiang T., Liu Q., Matsuo K., Pail P., Ahlgren K., Marti U., Ullrich C., Carrión J.: A first solution for the International Height Reference Frame (IHRF). International Union of Geodesy and Geophysics ,28th General Assembly, IUGG2023, IUGG, 2023

Sánchez L.: Completion of the GGOS Focus Area Unified Height System. GGOS Days 2023, Global Geodetic Observing System - GGOS, Alcalá de Henares, Spain, 10.5281/zenodo.8414079, 2023 (Open Access)

Sánchez L.: GGOS Report to the IAG Executive Committee. IAG Executive Commitee Meeting, International Association of Geodesy, San Francisco, CA, USA, 2023

Sánchez L.: GGOS: An overview of on-going activities. International Association of Geodesy, Executive Committee Meeting, Berlin, Germany, 2023

Sánchez L.: GGOS: The Global Geodetic Observing System of the International Association of Geodesy (IAG). UN-GGCE Listening World Tour, Virtual Meeting between IAG and UN-GGCE , UN Global Geodetic Centre of Excellence, Online, 2023

Sánchez L.: International and interdisciplinary cooperation in Geodesy for the measurement of Global Change. GeoSymposium: Geodesy and Geophysics for Sustainable and Scientific Development, Instituto Geográfico Agustín Codazzi - IGAC, Bogotá, Colombia and online, 2023

Sánchez L.: New GGOS Governing Board. GGOS Days 2023, Global Geodetic Observing System - GGOS, Alcalá de Henares, Spain, 10.5281/zenodo.8431179, 2023 (Open Access)

Sánchez L.: Proposal to merge the GGOS Consortium and the GGOS Coordinating Board. GGOS Coordinating Board Meeting, Vienna, Austria, 2023

Sánchez L.: Report of the GGOS Focus Area Unified Height System (GGOS FA-UHS). GGOS Coordinating Board Meeting, Vienna, Austria, 2023

Sánchez L.: The Global Geodetic Observing System (GGOS) of the International Association of Geodesy (IAG). GGOS Days 2023, Global Geodetic Observing System - GGOS, Alcalá de Henares, Spain, 10.5281/zenodo.8414042, 2023 (Open Access)

2022

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sanchez L., Steigenberger P., Heki K., Schuh H., Sehnal M.: GGOS Bureau of Products and Standards: Description and promotion of geodetic products. European Geosciences Union General Assembly 2022, European Geosciences Union, Vienna, Austria, 10.5194/egusphere-egu22-4537, 2022

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: GGOS Bureau of Products and Standards (BPS): BPS Activities on Standards. Unified Analysis Workshop 2022, Thessaloniki, Greece, 10.5281/zenodo.7291721, 2022

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: GGOS Bureau of Products and Standards. GGOS Japan Meeting, GGOS Affiliate Japan, online, 2022

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: Report GGOS Bureau of Products and Standards. GGOS Days 2022, Munich, Germany, 2022

Costa S.M.A., Sánchez L., Piñon D., Tarrío-Mosquera J.A., Guimarães G., Gómez D., Drewes H., et al.: Status of the SIRGAS reference frame: Recent developments and new challenges. International Association of Geodesy, Reference Frames Symposium REFAG2022, Thessaloniki, Greece, 2022

Oelsmann J., Marcos M., Passaro M., Sanchez L., Dettmering D., Seitz F.: The impact of continuous space and time-resolving vertical land motion on relative sea level change. EGU General Assembly, Vienna, 2022

Oelsmann J., Marcos M., Passaro M., Sanchez L., Dettmering D., Seitz F.: Vertical land motion reconstruction unveils nonlinear effects on relative sea level. Sea level conference, Singapore, 2022

Sánchez L., Barzaghi R.: Reference Systems and Frames in Physical Geodesy. GGOS Unified Analysis Workshop 2022, Thessaloniki, Greece, 2022

Sánchez L., Barzaghi R.: Report of the GGOS Focus Area Unified Height System. GGOS Coordinating Board Meeting, On-line, 2022

Sánchez L., Drewes H., Kehm A., Seitz M.: SIRGAS2022: Reference frame solution based on the homogeneous reprocessing of the SIRGAS historical data since January 2000. Symposium SIRGAS2022, Santiago de Chile, Chile, 2022

Sánchez L., Huang J., Barzaghi R., Vergos G.S., Ågren J., Mäkinen J., Véronneau M., et al.: Advances in the determination of a global unified reference frame for physical heights. International Association of Geodesy, Reference Frames Symposium REFAG2022, Thessaloniki, Greece, 2022

Sánchez L., Huang J., Barzaghi R., Vergos G.S., Ågren J., Mäkinen J., Véronneau M., et al.: Status of the International Height Reference Frame. GGHS2022: Gravity, Geoid, and Height Systems 2022 Symposium , Austin. TX, USA, 2022

Sánchez L., Huang J., Barzaghi R., Vergos G.S.: Towards an international standard for the precise determination of physical heights. EGU General Aseembly 2022, Vienna, Austria, https://doi.org/10.5194/egusphere-egu22-2523, 2022

Sánchez L., Kehm A., Drewes H., Seitz M.: SIRGAS Reference Frame Analysis at DGFI-TUM. Symposium SIRGAS2022, Santiago de Chile, Chile, 2022

Sánchez L.: Importance of the incorporation of SIRGAS stations into the global network of the International GNSS Service (IGS). SIRGAS Workshop on Geodetic Reference Stations, On-line, 2022

Sánchez L.: International Height Reference System. Webinar Unified Height System, Instituto Geográfico Militar, Santiago de Chile, Chile, 2022

Sánchez L.: International Height Reference System: Definition, Realisation, Status. SIRGAS Workshop on Physical Heights and Gravity, On-line, 2022

2021

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Sehnal M., Steigenberger P.: The role and activities of the GGOS Bureau of Products and Standards. American Geosciences Union Fall Meeting, American Geosciences Union, online, 2021 (Poster)

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: BPS – Bureau of Products and Standards. GGOS Days 2021, Global Geodetic Observing System, online, 2021

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: The GGOS Bureau of Products and Standards. European Geosciences Union General Assembly 2021, European Geosciences Union, online, 2021

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: The role and activities of the GGOS Bureau of Products and Standards. International Association of Geodesy General Assembly, International Association of Geodesy, online, 2021

Guimarães G., de Matos A.C.O.C., Pereira A., Antokoletz E.D., Carrión J.L., Sánchez L., et al.: An overview of SIRGAS activities towards the IHRF. International Association of Geodesy (IAG) Scientific Assembly 2021, Beijing, China, 2021 (Poster)

Liu Q., Schmidt M., Sánchez L.: The combination and contribution of different gravity measurements in regional quasi-geoid determination based on spherical radial basis functions . European Geosciences Union General Assembly , 2021

Liu Q., Schmidt M., Sánchez L.: Regional gravity field modeling based on a spectral combination through the multi-resolution representation. Frontiers of Geodetic Science (FROGS), online, 2021

Miyahara B., Sánchez L., Sehnal M., Craddock A.: GGOS: The Global Geodetic Observing System. AGU Fall Meeting 2021, 2021 (Poster)

Miyahara B., Sánchez L., Sehnal M., Craddock A.: The Global Geodetic Observing System (GGOS) - fundamental infrastructure for science and society -. International Association of Geodesy (IAG) Scientific Assembly 2021, Beijing, China, 2021 (Poster)

Oelsmann J., Passaro M., Sánchez L., Dettmering D., Schwatke C., Seitz F.: Bayesian modelling of discontinuities and piecewise trends (trend changes) improves coastal vertical land motion estimates. International Association of Geodesy (IAG) Scientific Assembly 2021, Beijing, China, 2021

Sehnal M., Angermann D., Sánchez L.: New GGOS Website – An Extensive Information Platform about Geodetic Products, Observations and Services. International Association of Geodesy (IAG) Scientific Assembly 2021, Beijing, China, 2021

Sánchez L., Barzaghi R., Huang J., Vergos G.S., Ågren J., Mäkinen J., et al.: Status of the International Height Reference Frame (IHRF). International Association of Geodesy (IAG) Scientific Assembly 2021, Beijing, China, 2021

Sánchez L., Barzaghi R.: Report of the GGOS Focus Area Unified Height System. GGOS Days 2021, virtual meeting, 2021

Sánchez L., Huang J., Barzaghi R., Vergos G.S.: GGOS Focus Area Unified Height System: achievements and open challenges. International Association of Geodesy (IAG) Scientific Assembly 2021, Beijing, China, 2021 (Poster)

Sánchez L., Huang J., Barzaghi R., Vergos G.S.: Towards a Global Unified Physical Height System. European Geosciences Union (EGU) General Assembly 2021, European Geosciences Union (EGU), Vienna, Austria, 2021

Sánchez L.: Advances in the implementation of the International Height Reference Frame. Splinter meeting on Physical Height Systems, International Association of Geodesy (IAG) Scientific Assembly 2021, Beijing, China, 2021

Sánchez L.: GGOS Focus Area Unified Height System: On-going activities. Global Geodetic Observing System (GGOS), Coordinating Board Meeting, virtual meeting, 2021

Sánchez L.: Geodesy's contribution to the observation and modelling of the Earth System. Geodetic Colloquium, Master Programm 'Geodetic Engineering and Applied Geophysics', Universidad de Jaén, Jaén, Spain, 2021

Sánchez L.: Lecture on Vertical Datum Unification. 13th International Geoid School, International Service for the Geoid - IGS, virtual meeting, 2021

Sánchez L.: Report on the International Height Reference Frame (IHRF). Steering committee meeting of the Commission 2 (Gravity Field) of the International Association of Geodesy (IAG), virtual meeting, 2021

Sánchez L.: Reprocessing of the SIRGAS reference frame from January 2000 to December 2020. Symposium SIRGAS2021, virtual meeting, 2021

Sánchez L.: Status of the International Height Reference Frame (IHRF). Symposium SIRGAS2021, virtual meeting, 2021

Sánchez L.: The International Association of Geodesy (IAG) and the Global Geodetic Observing System (GGOS): the science for the Global Geodetic Reference Frame (GGRF). Summer school: New geodetic techniques for Latin America and the Caribbean, Universidad Nacional de La Plata (UNLP), Argentinean German Geodetic Observatory (AGGO), Universidad Nacional de La Plata (UNLP), Argentinean German Geodetic Observatory (AGGO), Argentina, La Plata, Argentina, 2021

Sánchez L.: Towards a global unified height system. 2021 Scientific Meeting of the Turkish National Geodesy Commission – TUJK, virtual meeting, 2021

Sánchez L.: Towards an integrated global geodetic reference frame. Forschungsbereich Höhere Geodäsie der TU Wien, Vienna, Austria, 2021

Tarrío J.A., Sánchez L., Costa S., Silva A., et al.: Recent achievements and current challenges in the maintenance of the geodetic reference frame of the Americas. International Association of Geodesy (IAG) Scientific Assembly 2021, Beijing, China, 2021

2020

Angermann D. Gruber T., Gerstl M., Hugentobler U., Sanchez L., Heinkelmann R., Steigenberger P.: The GGOS Bureau of Products and Standards. European Geosciences Union (EGU) General Assembly 2020, Vienna, Austria, 2020 (Poster)

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Heinkelmann R., Steigenberger P. : The GGOS Bureau of Products and Standards. EGU General Assembly, Vienna, Austria, 2020

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steigenberger P.: Report of BPS Activities. GGOS Days 2020, online, 2020

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steigenberger P.: The GGOS Bureau of Products and Standards. GGOS Coordinating Board Meeting, online, 2020

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steigenberger P.: The role and activities of the GGOS Bureau of Products and Standards. American Geosciences Union Fall Meeting 2020, American Geosciences Union, online, 2020 (Poster)

Barzaghi R., Sánchez L., Vergos G.: Operational infrastructure to ensure the long-term sustainability of the IHRS/IHRF. European Geosciences Union (EGU) General Assembly 2020, Vienna, Austria, 10.5194/egusphere-egu2020-7961, 2020

Oelsmann J., Passaro M., Dettmering D., Sanchez L., Schwatke C., Seitz F.: The Zone of Influence Matching along-track coastal altimetry data with high-frequent tide gauge observations for vertical land motion estimation. 12th Coastal Altimetry Workshop, Frascati, Rom, Italien, 2020

Sánchez L., Barzaghi R., Vergos G.: Operational infrastructure for the International Height Reference Frame (IHRF). Symposium SIRGAS2020, 2020

Sánchez L., Barzaghi R.: Activities and plans of the GGOS Focus Area Unified Height System. European Geosciences Union (EGU) General Assembly 2020, 10.5194/egusphere-egu2020-8625, 2020

Sánchez L.: Activities and plans of the GGOS Focus Area Unified Height System. GGOS Days 2020, 2020

Sánchez L.: Geodetic contribution to the observation and modelling of the System Earth. On-line conferences of the American Association of Petroleum Geologists (AAPG), 2020

Sánchez L.: The International Height Reference System (IHRS). SIRGAS webinar, 2020

Völksen C., Sánchez L., Sokolov A., Arenz H., Seitz F.: Recent Crustal Surface Deformation of the Alpine Region Derived from Geodetic Observations. European Geosciences Union (EGU) General Assembly 2020, Vienna, Austria, 10.5194/egusphere-egu2020-3480, 2020

2019

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobker U., Sanchez L., Steigenberger P.: The GGOS Bureau of Products and Standards. European Geosciences Union, Vienna, Austria, 2019 (Poster)

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sanchez L., Steigenberger P. : Activities and Plans of the GGOS Bureau of Products and Standards. IUGG General Assembly, Montreal, Canada, 2019

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Heinkelmann R., Steigenberger P.: Bureau of Products and Standards Report. GGOS Coordinating Board Meeting, Vienna Austria, 2019

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steigenberger P.: GGOS Bureau of Products and Standards. Workshop for the Implementation of the GGRF in Latin America, Buenos Aires, Argentina, 2019

Kehm A., Sánchez L., Bloßfeld M., Angermann D., Drewes H., Seitz F.: Combination strategies for the realization of an Epoch Reference Frame for South America. European Geosciences Union General Assembly 2019, Vienna, Austria, 2019

Liu Q., Schmidt M., Willberg M., Pail R., Sánchez L.: Regional gravity field refinement for the determination of IHRF coordinates based on spherical basis functions . European Geosciences Union General Assembly , 2019

Liu Q., Schmidt M., Willberg M., Pail R., Sánchez L.: The 1 cm Geoid Experiment based on Spherical Basis Functions using Different Types of Observations . 27th IUGG General Assembly , 2019

Martínez W., Mackern M.V, Drewes H., Rovera H., Brunini C., Sánchez L., Fortes L.P.S, Lauría E., Cioce V., Pérez R., de Freitas S.R.C, Costa S.M.A, Hoyer M., Luz R.T, Barriga R., Subiza W.: Status of the SIRGAS reference frame: recent developments and new challenges. IUGG General Assembly 2019, Montreal, Canada, 2019

Oelsmann J., Passaro M., Dettmering D., Sanchez L., Schwatke C., Seitz F.: Comparability of coastal altimetry with tide gauges and application for vertical land motion detection. Frontiers of geodetic science, Stuttgart, Germany, 2019

Sánchez L., Barzaghi R., Vergos G.: Operational infrastructure to ensure the long-term sustainability of the IHRS/IHRF. IUGG General Assembly 2019, Montreal, Canada, 2019

Sánchez L., Brunini C.: Summary of the workshop on the Implementation of the Global Geodetic Reference Frame (GGRF) in Latin America. Symposium SIRGAS2019, Rio de Janeiro, Brazil, 2019

Sánchez L., Drewes H.: Geodetic monitoring of the variable surface deformation in Latin America. IUGG General Assembly 2019, Montreal, Canada, 2019

Sánchez L., Sideris M., Ihde J.: Activities and plans of the GGOS Focus Area Unified Height System. IUGG General Assembly 2019, Montreal, Canada, 2019

Sánchez L., Völksen Ch., Sokolov A., Arenz H., Seitz F.: Present-day surface deformation of the Alpine Region inferred from geodetic techniques. IUGG General Assembly 2019, Montreal, Canada, 2019

Sánchez L., Ågren J., Huang J., Wang Y.M., Mäkinen J., Denker H., Ihde J., Abd-Elmotaal H., Ahlgren K., Amos M., Barzaghi R., Bašić T., Blitzkow D., Carrion D., Claessens S., Erol B., Erol S., Filmer M., Forsberg R., Grigoriadis V.N., Serkan Işık M., Jiang T., Li X., Liu Q., Matos A.C.O.C., Matsuo K., Novák P., Pail R., Pitoňák M., Roman D., Schmitd M., Sideris M., Varga M., Vergos G.S., Véronneau M., Willberg M., Zhang C., Zingerle P.: IHRF2019: the first realisation of the International Height Reference System. IUGG General Assembly 2019, Montreal, Canada, 2019

Sánchez L., Ågren J., Huang J., Wang Y.M., Mäkinen J., Denker H., Ihde J., Abd-Elmotaal H., Ahlgren K., Amos M., Barzaghi R., Bašić T., Blitzkow D., Carrion D., Claessens S., Erol B., Erol S., Filmer M., Forsberg R., Grigoriadis V.N., Serkan Işık M., Jiang T., Li X., Liu Q., Matos A.C.O.C., Matsuo K., Novák P., Pail R., Pitoňák M., Roman R., Schmitd M., Sideris M., Varga M., Vergos G.S., Véronneau M., Willberg M., Zhang V., Zingerle P.: Advances in the realisation of the International Height Reference System. GGOS Days 2019, Rio de Janeiro, Brazil, 2019

Sánchez L.: Activities and plans of the GGOS Focus Area Unified Height System. GGOS Days 2019, Rio de Janeiro, Brazil, 2019

Sánchez L.: GGOS Focus Area Unified Height System: Status report, ongoing activities, outlook. GGOS Coordinating Board Meeting, Vienna, Austria, 2019

Sánchez L.: Permanent tide: a station displacement? Or a permanent component of the station positions?. IERS/GGOS Unified Analysis Workshop, Paris, France, 2019

Sánchez L.: Status of the International Height Reference Frame - IHRF. IERS/GGOS Unified Analysis Workshop, Paris, France, 2019

Sánchez L.: The International Height Reference System (IHRS) and its realisation, the International Height Reference Frame (IHRF). Workshop for the Implementation of the GGRF in Latin America, Buenos Aires, Argentina, 2019

2018

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sanchez L., Steigenberger P.: The GGOS Bureau of Products and Standards. American Geosciences Union Fall Meeting, Washington, 2018 (Poster)

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steigenberger P.: BPS: Overview, status and future plans. GGOS Days 2018, Tskuba, Japan, 2018

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steigenberger P.: The Bureau of Products and Standards and its key role within GGOS. European Geosciences Union General Assembly 2018, Vienna, Austria, 2018 (Poster)

Brunini C., Sánchez L., Galván R., Drewes H., Gende M.: Modelling seasonal station motions by combining GNSS and GRACE data at the normal equation level. International Symposium on Gravity, Geoid and Height Systems (GGHS2018), Copenhagen, Denmark, 2018 (Poster)

De Freitas S.R.C., Martínez W., Mackern M.V., Cioce V.J., Rodino R.P., Sánchez L.: Advances in the modernization of the height reference systems in Latin America and their integration to the International Height Reference System (IHRS). International Symposium on Gravity, Geoid and Height Systems (GGHS2018), Copenhagen, Denmark, 2018 (Poster)

Sánchez L., Cioce V., Drewes H., Brunini C.,de Almeida M. A., Gaytan G., Guagni H., Mackern V., Martínez W. A, Morillo A., Moya J., Parra H., Rodríguez O., Suárez N., Rudenko S.: Time evolution of the SIRGAS reference frame. 42nd COSPAR Scientific Assembly, Pasadena, CA, United States of America, 2018 (Poster)

Sánchez L., Madzak M.: GGOS activities related to the implementation of the International Height Reference System (IHRS). European Geosciences Union General Assembly 2018, Vienna, Austria, 2018 (Poster)

Sánchez L., Sideris M.: Vertical Datum Unification for the International Height Reference System (IHRS). International Symposium on Gravity, Geoid and Height Systems 2018 (GGHS2018), Copenhagen, Denmark, 2018

Sánchez L., Ågren J., Huang J., Véronneau M., Wang Y.M., Roman D., Vergos G., Abd-Elmotaal H., Amos M., Barzaghi R., Blitzkow D., Matos A.C.O.C., Denker H., Filmer M., Claessens S., Oshchepkov I.U. Marti13, K. Matsuo14, M. Sideris15, M. Varga16, M. Willberg17, R. Pail17: Advances in the establishment of the International Height Reference Frame (IHRF). International Symposium on Gravity, Geoid and Height Systems 2018 (GGHS2018), Copenhagen, Denmark, 2018

Sánchez L.: 22 years of IGS RNAAC SIRGAS - IGS Regional Network Associate Analysis Centre for SIRGAS. Symposium SIRGAS2018, Aguascalientes, Mexico, 2018

Sánchez L.: GGOS Focus Area Unified Height System: Ongoing activities. GGOS Coordinating Board Meeting, Vienna, Austria, 2018

Sánchez L.: GGOS Focus Area Unified Height System: Status report, ongoing activities, outlook. GGOS Days 2018, Tskuba, Japan, 2018

Sánchez L.: Implementierung des Internationalen Höhenreferenzrahmens (IHRF). Forschungsgruppe Satellitengeodäsie Workshop 2018, Bad Kötzting, Germany, 2018

Sánchez L.: SIRGAS and the implementation of the International Height Reference System (IHRS). Symposium SIRGAS2018, Aguascalientes, Mexico, 2018

Sánchez L.: SIRGAS reference frame data in the Internet. Symposium SIRGAS2018, Aguascalientes, Mexico, 2018

Sánchez L.: Strategy for the establishment of the International Height Reference System (IHRS). Symposium SIRGAS2018, Aguascalientes, Mexico, 2018

Wang Y.M., Forsberg R., Sánchez L., Ågren J., Huang J. : Report on Colorado geoid comparisons. International Symposium on Gravity, Geoid and Height Systems 2018 (GGHS2018), Copenhagen, Denmark, 2018

2017

Angermann D., Gruber T., Gerstl M., Hugentobler U., Heinkelmann R., Sanchez L., Steigenberger P.: Next steps after BPS inventory. Unified Analysis Workshop, Paris, France, 2017

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Heinkelmann R., Steigenberger P.: GGOS Bureau of Products and Standards. IAG-IASPEI Joint Scientific Assembly 2017, Kobe, Japan, 2017

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Heinkelmann R., Steigenberger P.: GGOS Bureau of Products and Standards: Recent activities and future plans. IAG-IASPEI Joint Scientific Assembly 2017, Kobe, Japan, 2017

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Heinkelmann R., Steigenberger P.: Overview of BPS activities and future plans. GGOS Days 2017, Vienna, Austria, 2017

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Heinkelmann R., Steigenberger P.: The Bureau of Products and Standards and its key role within GGOS. European Geosciences Union General Assembly, Vienna, Austria, 2017

Brunini C., Sánchez L., Galván R., Drewes H., Gende M.: Modelling vertical displacements due to hydrological load at stations of the Geocentric Reference System for the Americas (SIRGAS). Joint Scientific Assembly of the International Association of Geodesy and the International Association of Seismology and Physics of the Earth’s Interior (IAG-IASPEI 2017), Kobe, Japan, 2017 (Poster)

Cioce V., Sánchez L., Drewes H., Brunini C., de Almeida M.A., Gasca J.G., Guagni H., Morillo A., Parra H., Rodríguez O., Suárez N., Valverde J.F., Martínez W., Mackern M.V.: SIRGAS: the core geodetic infrastructure in Latin America and the Caribbean. Joint Scientific Assembly of the International Association of Geodesy and the International Association of Seismology and Physics of the Earth’s Interior (IAG-IASPEI 2017), Kobe, Japan, 2017 (Poster)

Drewes H., Sánchez L.: The varying surface kinematics in Latin America: VEMOS 2009, 2015, and 2017 . Symposium SIRGAS2017, Mendoza, Argentina, 2017

Heinkelmann R., Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Steigenberger P.: Interaction with IAU concerning standards. GGOS Days 2017, Vienna, Austria, 2017

Heinkelmann R., Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Steigenberger P.: The Bureau of Products and Standards and its key role within GGOS. Journées des Systèmes de Référence et de la Rotation Terrestre, Alicante, Spain, 2017

Sánchez L. Sideris M.G.: Vertical datum unification for the International Height Reference System (IHRS). European Geosciences Union General Assembly 2017, Vienna, Austria, 2017

Sánchez L., Denker H., Pail R., Lieb V., Huang J., Roman D., Ågren J., Amos M., Ihde J., Barzaghi R., Sideris M., Oshchepkov I., Blitzkow D., Matos A.C.O.C., Piñon D., Avalos D., Freitas S.R.C., Luz R.: A first approximation to the International Height Reference Frame (IHRF). Joint Scientific Assembly of the International Association of Geodesy and the International Association of Seismology and Physics of the Earth’s Interior (IAG-IASPEI 2017), Kobe, Japan, 2017

Sánchez L., Drewes H., Brunini C.: Geodetic monitoring of the surface deformation in Latin America. Strengthening Disaster Risk Reduction across the Americas: A Regional Summit on the Contribution of Earth Observations, Buenos Aires, Argentina, 2017

Sánchez L., Drewes H.: Crustal deformation and surface kinematics after the 2010 earthquakes in Latin America. Joint Scientific Assembly of the International Association of Geodesy and the International Association of Seismology and Physics of the Earth’s Interior (IAG-IASPEI 2017), Kobe, Japan, 2017

Sánchez L., Ihde J., Pail R., Gruber T., Barzaghi R., Marti U., Ågren J., Sideris M., Novák P.: Towards a first realization of the International Height Reference System (IHRS). European Geosciences Union General Assembly 2017, Vienna, Austria, 2017

Sánchez L., Čunderlík R., Mikula K., Minarechová Z., Dayoub N., Šíma Z., Vatrt V., Vojtíšková M.: A conventional value for the geoid reference potential W0. Unified Analysis Workshop 2017 (UAW2017), Paris, France, 2017

Sánchez L.: Advances in the implementation of the International Height Reference System (IHRS). Symposium SIRGAS2017, Mendoza, Argentina, 2017

Sánchez L.: GGOS Focus Area Unified Height System: Report, ongoing activities, outlook. GGOS Days 2017, Vienna, Austria, 2017

Sánchez L.: Kinematics of the SIRGAS Reference Frame. Symposium SIRGAS2017, Mendoza, Argentina, 2017

Sánchez L.: Recent activities of the IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIRGAS). Symposium SIRGAS2017, Mendoza, Argentina, 2017

2016

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sanchez L., Heinkelmann R., Steigenberger P.: GGOS Bureau of Products and Standards: Recent activities and future work. EGU General Assembly, Vienna, Austria, 2016 (Poster)

Drewes H., Sánchez L.: The Velocity Model for SIRGAS 2010-2015 (VEMOS2015). Symposium SIRGAS 2016, 2016

Sánchez L., Ihde J., Pail R., Barzaghi R., Marti U., Ågren J., Sideris M., Novák P.: Strategy for the Realization of the International Height Reference System (IHRS). GGHS2016: International Symposium on Gravity, Geoid and Height Systems 2016, Thessaloniki, Greece, 2016

Sánchez L., Ihde J., Pail R., Barzaghi R., Marti U., Ågren J., Sideris M., Novák P.: Strategy for the Realization of the International Height Reference System (IHRS). Symposium SIRGAS 2016, Quito, Ecuador, 2016

Sánchez L.: GGOS Focus Area 1: Unified Height System, Present activities. GGOS Coordinating Board Meeting, Vienna, Austria, 2016

Sánchez L.: Recent activities of the IGS Regional Network Associate Analysis Centre for SIRGAS - IGS RNAAC SIRGAS. Symposium SIRGAS 2016, Quito, Ecuador, 2016

Sánchez L.: Unified Height System: Required measurements and expected products. GGOS Days 2016, Cambridge MA, USA, 2016

Sánchez L.: Working Group on the Strategy for the Realization of the International Height Reference System (IHRS): Brainstorming and definition of action items. Splinter meeting at the International Symposium on Gravity, Geoid and Height Systems 2016, 2016

2015

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmamm R., Steigenberger P.: GGOS Bureau of Products and Standards: Inventory of standards and conventions. IUGG General Assembly, Prague, Czech Republic, 2015

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steigenberger P.: GGOS Büro für Produkte und Standards. Geodätische Woche, Stuttgart, Germany, 2015

Drewes H., Sánchez L.: Post-seismic crustal deformations after the 2010 earthquakes in the SIRGAS region. Symposium SIRGAS 2015, Santo Domingo, Dominican Republic, 2015

Ihde J., Barzaghi R., Marti U., Sánchez L., Sideris M., Drewes H., Foerste Ch., Gruber Th., Liebsch G., Pail R.: Definition and Realization of an International Height Reference System. International Union of Geodesy and Geophysics General Assembly 2015, Prague, Czech Republic, 2015

Ihde J., Sánchez L.: Physical Height and the GGRF - Earth Gravity Field and the GGRF - - GGRF an Integrated Approach -. GGOS Days 2015, Frankfurt a.M., Germany, 2015

Sánchez L., Cunderlík R., Mikula K., Minarechová Z., Dayoub N., Síma Z., Vatrt V., Vojtísková M.: A new best estimate for the conventional value W0 - Final Report of the WG on Vertical Datum Standardization -. International Union of Geodesy and Geophysics General Assembly 2015, Prague, Czech Republic, 2015

Sánchez L., Drewes H., Schmidt M.: A post-seismic deformation model after the 2010 earthquakes in Latin America. EGU2015, Vienna, Austria, 2015

Sánchez L., Drewes H., da Silva, De Almeida, Brunini C., Cioce V., Cisneros D., Gasca L., Guagni H., Mackern V., Moya J., Parada I., Sandoval P., Suárez O.: SIRGAS: the core geodetic infrastructure in Latin America and the Caribbean. International Union of Geodesy and Geophysics General Assembly 2015, Prague, Czech Republic, 2015

Sánchez L., Drewes H.: Post-seismic crustal deformations after the 2010 earthquakes in Latin America. International Union of Geodesy and Geophysics General Assembly 2015, Prague, Czech Republic, 2015

Sánchez L., Ihde J., Barzaghi R., Drewes H., Foerste Ch., Liebsch G., Marti U., Sideris M.: Establishment of an International Height Reference System in the frame of GGOS. Symposium SIRGAS 2015, Santo Domingo, Dominican Republic, 2015

Sánchez L.: Kinematics of the SIRGAS Reference Frame. Symposium SIRGAS 2015, Santo Domingo, Dominican Republic, 2015

Sánchez L.: Lecture on Vertical Reference Systems. III Workshop of the SIRGAS Working Group III (Vertical Datum), Universidade Federal do Paraná, Curitiba, Brazil, 2015

Sánchez L.: Realisation of a vertical reference system for South America as a densification of an International Height Reference System. International Union of Geodesy and Geophysics General Assembly 2015, Prague, Czech Republic, 2015

Sánchez L.: Recent activities of the IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIRGAS). Symposium SIRGAS 2015, Santo Domingo, Dominican Republic, 2015 (Poster)

Sánchez L.: SIRGAS regional stations available for the second reprocessing of the SIRGAS reference frame. Symposium SIRGAS 2015, Santo Domingo, Dominican Republic, 2015 (Poster)

Sánchez L.: Unification of height systems in the frame of GGOS. EGU2015, Vienna, Austria, 2015

2014

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steigenberger P.: Inventory of standards and conventions used for the generation of IAG/GGOS products. AGU Fall Meeting, San Francisco, USA, 2014

Angermann D., Gruber T., Gerstl M., Hugentobler U., Sánchez L.: GGOS-Büro für Standards und Konventionen. Geodätische Woche, Berlin, Germany, 2014

Angermann D., Gruber Th., Gerstl M., Hugentobler U., Sánchez L., Heinkelmann R., Steinberger P.: GGOS Bureau for Standards and Conventions. Symposium SIRGAS 2014, La Paz, Bolivia, 2014

Brunini C., Sánchez L., Mackern M.V., de Freitas: SIRGAS: reference system for the Americas. Symposium SIRGAS 2014, La Paz, Bolivia, 2014

Drewes H., Sánchez L.: Actualization of the SIRGAS velocity model. Symposium SIRGAS 2014, La Paz, Bolivia, 2014

Legrand J., Bruyninx C., Craymer M., Dawson J., Griffiths J., Kenyeres A., Rebischung P., Sánchez L., Santamaría-Gómez A., Saria E., Altamimi Z.: IAG WG 'Integration of Dense Velocity Fields in the ITRF': Results and Lessons learned. IGS Workshop 2014, Pasadena, California, USA., 2014

Santacruz A., de Freitas, Sánchez L., Luz R.T., Philippi S.: Review of the South American heights systems to meet the new IAG/SIRGAS requirements. Symposium SIRGAS 2014, La Paz, Bolivia, 2014

Santacruz A., de Freitas, Sánchez L.: Towards a unified vertical reference frame for South America in view of the GGOS specifications. 3rd International Gravity Field Service (IGFS) General Assembly. Shanghai, China., 2014

Sánchez L., Cunderlík R., Dayoub N., Mikula K., Minarechová Z., Síma Z., Vatrt V., Vojtísková M.: Towards a new best estimate for the conventional value of W0. 3rd International Gravity Field Service (IGFS) General Assembly, 2014

Sánchez L., Cunderlík R., Dayoub N., Minarechová Z., Mikula K., Vatrt V., Síma Z., Vojtísková M.: Towards a new best estimate for the conventional value of W0. Symposium SIRGAS 2014, La Paz, Bolivia, 2014

Sánchez L., Drewes H., Brunini C., Mackern M.V., Martínez-Díaz W., Schmid R.: Improved modelling for the SIRGAS reference frame computation. IGS Workshop 2014, Pasadena, USA, 2014

Sánchez L., H. Drewes, C. Brunini, M.V. Mackern, W. Martínez-Díaz, M. Fuchs: Modelling seismic effects in regional geodetic reference frames. International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH 2014). Matsushima, Miyagi, Japan, 2014

Sánchez L.: Report on the analysis of the SIRGAS reference frame at the IGS RNAAC SIRGAS. Symposium SIRGAS 2014, La Paz, Bolivia, 2014 (Poster)

Sánchez L.: Towards a unified vertical reference frame for SIRGAS. XXVII Scientific Meeting of the Argentinean Association for Geodesy and Geophysics. San Juan, Argentina, 2014

Sánchez L.: Vertical datum standardisation in South America. Symposium SIRGAS 2014, La Paz, Bolivia, 2014

2013

Angermann D., Bouman J., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: GGOS Bureau for Standards and Conventions. FGS Workshop, Bad Kötzting, Germany, 2013

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: The GGOS Bureau for Standards and Conventions. IAG Scientific Assembly, Potsdam, Germany, 2013

Angermann D., Gruber T., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: The need of common standards and conventions for homogeneous data processing and consistent geodetic products. EGU General Assembly, Vienna, Austria, 2013

Sánchez L., Brunini C.: Avances SIRGAS en el periodo 2012-2013. SIRGAS general meeting 2013, Panama City, Panama, 2013

Sánchez L., Dayoub N., Cunderlík R., Mikula K., Minarechová Z., Síma Z., Vatrt V., Vojtí sková M.: Conventional reference level for a global unified height system. IAG Scientific Assembly, Potsdam, Germany, 2013

Sánchez L., Drewes H., Brunini C., Mackern V., Martínez W.: SIRGAS: the core geodetic infrastructure in Latin America and the Caribbean. IAG Scientific Assembly, Potsdam, Germany, 2013

Sánchez L., Drewes H., Brunini C., Mackern V., da Silva: SIRGAS: the core geodetic infrastructure in Latin America and the Caribbean. AGU Meeting of the Americas, Cancun, Mexico, 2013

Sánchez L.: Definition and realisation of a global vertical reference system under the umbrella of the Global Geodetic Observing System - GGOS. SIRGAS general meeting 2013, Panama City, Panama, 2013

Sánchez L.: Kinematics of the SIRGAS reference frame. SIRGAS general meeting 2013, Panama City, Panama, 2013

Sánchez L.: ModernizaciÃ³n de los sistemas de alturas. Semana GeomÃ¡tica Internacional 2013, Instituto GeogrÃ¡fico AgustÃn Codazzi, BogotÃ¡, Colombia, 2013

Sánchez L.: Recent activities of the SIRGAS Analysis Centre at DGFI. SIRGAS general meeting 2013, Panama City, Panama, 2013 (Poster)

Sánchez L.: Vertical datum standardisation: a fundamental step towards a global vertical reference system. AGU Meeting of the Americas, Cancun, Mexico, 2013

2012

Angermann D., Bouman J., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: GGOS Bureau for Standards and Conventions. AGU Fall Meeting, San Francisco, USA, 2012

Angermann D., Gruber T., Bouman J., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L.: GGOS Bureau for Standards and Conventions. Geodätische Woche, Hannover, Germany, 2012

Brunini C., Sánchez L.: Reporte anual de las actividades SIRGAS. SIRGAS General Meeting 2013, Concepcion, Chile, 2012

Drewes H., Baez J., Cimbaro S., Sánchez L.: Modelado de movimientos no lineales en el mantenimiento de marcos de referencia. SIRGAS General Meeting 2012, Concepcion, Chile, 2012

Drewes H., Ramirez N., Sánchez L., Martínez W.: TransformaciÃ³n de marcos nacionales de referencia entre dos Ã©pocas diferentes: Ejemplo Colombia. SIRGAS General Meeting 2012, Concepcion, Chile, 2012

Sánchez L., Cimbaro S., Cioce V., Echalar A.,GonzÃ¡lez, Martínez W., da Silva: Improvement of the IGS station coverage in Latin America. IGS Workshop 2012, Olsztyn, Poland, 2012

Sánchez L.: Consecuencias de las recomendaciones surgidas del IGS Workshop 2012 en el marco de referencia SIRGAS. SIRGAS General Meeting 2013, Concepcion, Chile, 2012

Sánchez L.: Lecture on Precise GNSS Processing and training curse on the Bernese GPS Software. Heredia, Costa Rica, 2012

Sánchez L.: Report on the activities of the IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR). SIRGAS General Meeting 2013, Concepcion, Chile, 2012

Sánchez L.: Report on the activities of the Working Group Vertical Datum Standardisation. GGHS 2012, Venice, Italy, 2012

Sánchez L.: Towards a Vertical Datum Standardisation. AOGS-AGU (WPGM) Joint Assembly, Singapore, 2012

Sánchez L.: Towards a global vertical datum standardisation. SIRGAS General Meeting 2013, Concepcion, Chile, 2012

Sánchez L.: Towards a vertical datum standardisation based on a joint analysis of TIGA, satellite altimetry and gravity field modelling products. IGS Workshop 2012, Olsztyn, Poland, 2012 (Poster)

2011

Angermann D., Gruber T., Bouman J., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: Report on GGOS Bureau for Standards and Conventions. GGOS Coordinating Board Meeting No. 1, San Francisco, USA, 2011

Angermann D., Gruber T., Bouman J., Gerstl M., Heinkelmann R., Hugentobler U., Sánchez L., Steigenberger P.: The importance of common standards and conventions for consistent GGOS products. AGU Fall Meeting, San Francisco, USA, 2011

Brunini C., Sánchez L., Mackern V., Martínez W., Luz R.: SIRGAS: Basis for Geosciences, Geodata, and Navigation in Latin America. Latin American Geospatial Forum, Rio de Janeiro, Brazil, 2011

Drewes H., Barrientos S., Sánchez L., Maturana R.: The Maule earthquake in Chile, February 27, 2010. IUGG XXV General Assembly, Melbourne, Australia, 2011

Drewes H., Barrientos S., Sánchez L., Maturana R.: The Maule earthquake in Chile, February 27, 2010. IUGG General Assembly, Melbourne, Australia, 2011

Drewes H., Sánchez L., Brunini C., Mackern V.: CÃ³mo mitigar el impacto de eventos sÃsmicos en los marcos de referencia?. ReuniÃ³n SIRGAS, Heredia, Costa Rica, 2011

Drewes H., Sánchez L.: Recent aseismic, co-seismic and post-seismic deformations in the pacific orogenic zone of Latin America. IUGG General Assembly, Melbourne, Australia, JG06, 2011

Sánchez L., Brunini C., Mackern V., Martinez W., Luz R.: Status and new perspectives of the SIRGAS Reference Frame. IUGG XXV General Assembly, Melbourne, Australia, 2011

Sánchez L., Brunini C.: Geoinformation and Navigation supported by the Geocentric Reference System for the Americas. International Symposium on Global Navigation Satellite Systems, Space-Based and Ground-Based Augmentation Systems and Applications Berlin, Germany, 2011

Sánchez L., Cioce V.: Sistema de Referencia para las AmÃ©ricas - SIRGAS (Lecture). Curso avanzado en posicionamiento GNSS, Universidad PolitÃ©cnica de Madrid, Spain, 2011

Sánchez L., Luz R.: Requerimientos para la unificaciÃ³n de los sistemas de alturas existentes en la RegiÃ³n SIRGAS. SIRGAS 2011 General Meeting, San JosÃ© Costa Rica, 2011

Sánchez L., Seitz M., Drewes H.: CinemÃ¡tica del marco de referencia SIRGAS. SIRGAS 2011 General Meeting, San JosÃ©, Costa Rica, 2011

Sánchez L., Seitz M.: Actividades recientes del Centro Regional de AnÃ¡lisis Asociado del IGS para SIRGAS (IGS RNAAC SIR). SIRGAS 2011 General Meeting, San JosÃ©, Costa Rica, 2011

Sánchez L.: Numerical approach for a unified World Height System. IUGG XXV General Assembly, Melbourne, Australia, 2011

Sánchez L.: Physical height systems in South America. STSE-GOCE+Height System Unification Progress Meeting 2, Frankfurt am Main, Germany, 2011

Sánchez L.: Procesamiento preciso de mediciones GNSS (Lecture). Curso en sistemas de referencia, Instituto GeogrÃ¡fico Militar, Santiago de Chile, Chile, 2011

Sánchez L.: SIRGAS: marco de referencia para las AmÃ©ricas (Lecture). Curso en sistemas de referencia, Instituto GeogrÃ¡fico Militar, Santiago de Chile, Chile, 2011

Sánchez L.: Sistemas verticales de referencia (Lecture). Third IAG-PAIGH-SIRGAS school on reference systems, San JosÃ©, Costa Rica, 2011

Sánchez L.: The role of TIGA in the vertical datum standardization. Twelfth Session of the GLOSS Group of Experts, Paris, France, 2011

Sánchez L.: Tipos de alturas, superficies de referencia y unificaciÃ³n de datums verticales (Lecture). Curso en sistemas de referencia, Instituto GeogrÃ¡fico Militar, Santiago de Chile, Chile, 2011

Sánchez L.: Training course on GNSS analysis for the installation of a SIRGAS Processing Centre in Chile. Instituto GeogrÃ¡fico Militar, Santiago de Chile, Chile, 2011

2010

Brunini C., Azpillicueta F., Gende M., Camilion E., Aragón Angel, Hernández-Pajares M., Juan M., Sanz J., Salazar D., Sánchez L.: Assessment of the 4-D SIRGAS ionospheric model. REFAG2010, Marle-La-VallÃ©e, France, 2010

Brunini C., Drewes H., Sánchez L., Mackern V., Mateo L.: Seasonal effects in the weekly realization of the SIRGAS reference frame. EGU General Assembly, Vienna, Austria, 2010

Drewes H., Brunini C., Sánchez L., Mackern V., Martínez W.: Uso de las coordenadas SIRGAS en los marcos nacionales de referencia. SIRGAS 2010 General Assembly, Lima, Peru, 2010

Seemüller W., Sánchez L., Drewes H., Seitz M.: The Position and Velocity Solution SIR10P01 of the IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR). SIRGAS 2010 General Meeting, Lima, Peru, 2010

Seitz M., Bloßfeld M., Sánchez L., Seitz F.: Understanding and treating seasonal signals of station positions in the ITRF computation. EGU 2010, Vienna, 2010

Sánchez L., Brunini C., Mackern V., Martínez W., Luz R.: SIRGAS: the geocentric reference frame of the Americas. International Symposium on Global Navigation Satellite Systems, Space-Based and Ground-Based Augmentation Systems and Applications 2010. Brussels, Belgium, 2010

Sánchez L., Brunini C., Mackern V., Martínez W., Luz R.: SIRGAS: the geodetic reference frame in Latin America and the Caribbean. IAG Commission 1 Symposium (REFAG), Marne la VallÃ©e, France, 2010

Sánchez L., Drewes H., Brunini C., Martínez W., Mackern V.: Sustainability of the SIRGAS Reference Frame. IAG Commission 1 Symposium (REFAG), Marne la VallÃ©e, France, 2010

Sánchez L., Luz R.: Iniciativas internacionales encaminadas al establecimiento de un sistema vertical global y el aporte de SIRGAS. SIRGAS 2010 General Meeting, Lima, Peru, 2010

Sánchez L., Seemüller W., Drewes H., Mateo L., González G., Costa S., da Silva, Pampillón J., Martínez W., Cioce V., Cisneros D., Cimbaro S.: Long-term stability of the SIRGAS Reference Frame and episodic station movements caused by the seismic activity in the SIRGAS region. IAG Commission 1 Symposium (REFAG), Marne la VallÃ©e, France, 2010

Sánchez L., Seemüller W.: Report of the SIRGAS Analysis Centre at DGFI. SIRGAS 2010 General Meeting, Lima, Peru, 2010

Sánchez L.: Disponibilidad y uso de los productos SIRGAS. IAG-PAIGH-SIRGAS School on Reference Systems, 2010

Sánchez L.: Numerical approach for a unified South American vertical reference frame within a world height system. IAG Commission 1 Symposium (REFAG), Marne la VallÃ©e, France, 2010

Sánchez L.: SIRGAS: sistema de referencia geocÃ©ntrico para las AmÃ©ricas (Lecture). Curso avanzado de posicionamiento por satÃ©lites, Madrid, España, 2010

Sánchez L.: Sistemas Verticales de Referencia (Lecture). IAG-PAIGH-SIRGAS School on Reference Systems, 2010

2009

Figueroa C.E., Amaya W., Sánchez L.: Integration of the reference frame of El Salvador into SIRGAS. IAG Scientific Assembly. Buenos Aires, Argentina., 2009 (Poster)

Sánchez L., Brunini C., Costa S., Mackern V., Martinez W., Seemüller W., da Silva A.: SIRGAS: ITRF densification in Latin America and the Caribbean. European Geosciences Union, General Assembly 2009 (EGU 2009). Vienna, Austria., 2009

Sánchez L., Mackern V.: Datum realization for the SIRGAS weekly coordinates.. IAG Scientific Assembly. Buenos Aires, Argentina., 2009

Sánchez L., Seemüller W., Seitz M.: DGFI report on the combination of the weekly solutions delivered by the SIRGAS Processing Centres. IAG Scientific Assembly. Buenos Aires, Argentina., 2009

Sánchez L.: Curso introductorio al procesamiento de datos GPS con el software Bernese.. PreparaciÃ³n del Centro de Procesamiento SIRGAS en el Servicio GeogrÃ¡fico Militar de Uruguay. Montevideo, Uruguay., 2009

Sánchez L.: Disponibilidad y uso de los productos SIRGAS. IAG-IPGH-SIRGAS School in Reference Systems. Bogota, Colombia., 2009

Sánchez L.: Height datum unification within a global vertical reference system. IAG Scientific Assembly. Buenos Aires, Argentina, 2009

Sánchez L.: Lecture on Vertical Reference Systems (in Spanish).. IAG-IPGH-SIRGAS School in Reference Systems. Bogota, Colombia., 2009

Sánchez L.: SIRGAS: el sistema de referencia de AmÃ©rica Latina. Curso avanzado de posicionamiento por satÃ©lite. Madrid, Spain., 2009

2008

Sánchez L., Brunini C.: SIRGAS: Basis for Geosciences, Geodata, and Navigation in Latin America. International Symposium on Global Navigation Satellite Systems, Space-based and Ground-based Augmentation Systems and Applications. Berlin, Germany., 2008

Sánchez L.: Avances en el procesamiento unificado de las redes verticales involucradas en SIRGAS. SIRGAS 2008 General Meeting, Montevideo, Uruguay, 2008

Sánchez L.: Curso introductorio al procesamiento de datos GPS con el software Bernese.. PreparaciÃ³n del Centro de Procesamiento SIRGAS en el Instituto GeogrÃ¡fico Militar de Ecuador. Quito, Ecuador, 2008

Sánchez L.: DGFI Report on the comparison and combination of the weekly solutions delivered by the SIRGAS Experimental Processing Centres. Second Workshop of the SIRGAS-WGI, Montevideo, Uruguay, 2008

Sánchez L.: Geodetic control of vertical movements at tide gauges. SIRGAS 2008 General Meeting, Montevideo, Uruguay, 2008

Sánchez L.: Global vertical datum unification based on the combination of the fixed gravimetric and the scalar free geodetic boundary value problems. International Symposium on Gravity, Geoid, and Earth Observation GGEO 2008, Chania, Crete, Greece, 2008

Sánchez L.: SIRGAS en la Internet. SIRGAS 2008 General Meeting, Montevideo, Uruguay, 2008

2007

Sánchez L.: A new vertical reference system for South America. American Geophysical Union, Spring Meeting. Acapulco, Mexico, 2007 (Poster)

Sánchez L.: RealizaciÃ³n del nivel de referencia vertical para SIRGAS dentro de una definiciÃ³n global. II Semana GeomÃ¡tica del Instituto GeogrÃ¡fico AgustÃn Codazzi (IGAC). BogotÃ¡, Colombia, 2007

Sánchez L.: SIRGAS working group III Vertical Datum. Report 2006 - 2007. SIRGAS 2007 meeting. II Semana GeomÃ¡tica del Instituto GeogrÃ¡fico AgustÃn Codazzi (IGAC). BogotÃ¡, Colombia, 2007

Sánchez L.: Sistemas verticales de referencia. Taller. II Semana GeomÃ¡tica del Instituto GeogrÃ¡fico AgustÃn Codazzi (IGAC). BogotÃ¡, Colombia, 2007

Sánchez L.: Vertical motion control of the tide gauges in the Atlantic as a part of the TIGA project. IUGG XXIV General Assembly, Perugia, Italy, 2007 (Poster)

2006

Martínez W., Sánchez L.: Realization of the SIRGAS reference frame in Colombia. International IAG Symposium 'Geodetic Reference Frames, GRF2006. LVG, München, 2006

Sánchez L., Krügel M.: The role of the TIGA project in the unification of classical height systems. International IAG Symposium 'Geodetic Reference Frames, GRF2006', LVG, München, 2006

Sánchez L.: Advances to define and realise a World Height System. 1st International Symposium of the International Gravity Field Service (IGFS2006), Harbiye Military Museum and Culture Center, Istanbul, Turkey, 2006

Sánchez L.: Approach for the establishment of a global vertical reference system. VI Hotine-Marussi Symposium. Wuhan, China, 2006

Sánchez L.: Connection of the South American height systems to a global unified vertical reference frame. IAG Inter commission Project 1.2 (Vertical reference systems) Workshop. Prague, Czech Republic, 2006

Sánchez L.: Current status and future activities of the subcommission 1.3b (South and Central America) of the IAG Commission 1 on Reference Frames. International IAG Symposium 'Geodetic Reference Frames, GRF2006', LVG, München, 2006

Sánchez L.: Curso Fundamentos teóricos para el procesamiento de información GNSS utilizando el software científico Bernese. Instituto GeogrÃ¡fico AugustÃn Codazzi (IGAC), BogotÃ¡, Colombia, 2006

Sánchez L.: Empirical determination of the global reference value W0. IAG Intercommission Project 1.2 (Vertical reference systems) Workshop. Prague, Czech Republic, 2006

Sánchez L.: Konzept für die Definition und Realisierung eines globalen vertikalen Referenzsystem. DGK Arbeitskreis Theoretische Geodäsie 'Vertikaldatum und Welthöhensystem', Institut für Theoretische Geodäsie, Universität Bonn, 2006

Sánchez L.: Modernización de los sistemas de alturas en América del Sur. IV National Conference on Geography and Cartography (CONFEGE), Instituto Brasileiro de Geografia e EstatÃstica (IBGE), Rio de Janeiro, Brazil, 2006

Sánchez L.: Reporte del centro de procesamiento IGAC. Workshop of the SIRGAS Working Group I (Reference System). Rio de Janeiro, Brazil, 2006

Sánchez L.: Strategy to establish a Global Vertical Reference System. International IAG Symposium 'Geodetic Reference Frames, GRF2006', LVG, München, 2006

2005

Kusche J., Schmidt M., Han S.C., Sánchez L., Shum C.K., Xie J.: Regional high-resolution spatio-temporal gravity modeling from GRACE data using spherical wavelets. AGU Fall Meeting 2005, San Francisco, USA, 2005

Schmidt M., Kusche J., Sánchez L., Shum C.K., van Loon J., Han S.-C.: High-resolution regional gravity model from satellite and terrestrial data using spherical wavelet theory. EGU General Assembly, Vienna, Austria, 2005

Sánchez L.: Definition and realisation of the SIRGAS vertical reference system within a globally unified height system. IAG, IAPSO, IABO Joint Conference ,,Dynamic Planet 2005', Cairns, Australia, 2005

Sánchez L.: Hacia un sistema vertical de referencia unificado para AmÃ©rica del Sur. XX ReuniÃ³n de Consulta de la ComisiÃ³n de CartografÃa del IPGH, Caracas, Venezuela, 2005

Sánchez L.: SIRGAS-GTIII Datum Vertical, Reporte 2005. ReuniÃ³n SIRGAS, Caracas, Venezuela, 2005

2004

Sánchez L.: Proposed realization of the South American Vertical Reference System. SIRGAS Workshop, Aguascalientes, Mexico, 2004 (Poster)

2002

Drewes H., Sánchez L.: Curso Sistemas de Referencia en Geodesia, I. Sistemas horizontales. Quito, Ecuador, 2002

Drewes H., Sánchez L.: Curso Sistemas de Referencia en Geodesia, II. Sistemas verticales y gravimÃ©tricos. Quito, Ecuador, 2002

2001

Bosch W., Acuña G., Brunini C., Maturana R., Luz R., Sánchez L.: Connecting sea level and height systems along the coast of South America - a first assessment. IAG 2001 Scientific Assembly, Budapest, Hungary, 2001

Kaniuth K., Häfele P., Sánchez L.: Subsidence of the permanent GPS station BOGA. IAG Symp. on Vertical Reference Systems, Cartagena, Colombia, 2001

Sánchez L., Drewes H.: Comparison of the classical and the modern vertical reference system in Colombia. IAG 2001 Scientific Assembly, Budapest, Hungary, 2001

1999

Sánchez L., Martínez W., Florez J.A., Drewes H., Kaniuth K., Tremel H.: Connection of the Colombian vertical datum to the geocentric reference system. XXII IUGG General Assembly, Birmingham, 1999

Sánchez L., Tremel H., Drewes H.: The Colombian national geocentric reference frame. XXII IUGG General Assembly, Birmingham, 1999

Deutsches Geodätisches Forschungsinstitut

Prof. Dr.-Ing. habil. Florian Seitz

Technische Universität München
Arcisstraße 21
80333 München