Validation of recent geopotential models in Tierra Del Fuego

Autores
Gomez, María Eugenia; Perdomo, Raúl Aníbal; Del Cogliano, Daniel Héctor
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work presents a validation study of global geopotential models (GGM) in the region of Fagnano Lake, located in the southern Andes. This is an excellent area for this type of validation because it is surrounded by the Andes Mountains, and there is no terrestrial gravity or GNSS/levelling data. However, there are mean lake level (MLL) observations, and its surface is assumed to be almost equipotential. Furthermore, in this article, we propose improved geoid solutions through the Residual Terrain Modelling (RTM) approach. Using a global geopotential model, the results achieved allow us to conclude that it is possible to use this technique to extend an existing geoid model to those regions that lack any information (neither gravimetric nor GNSS/levelling observations). As GGMs have evolved, our results have improved progressively. While the validation of EGM2008 with MLL data shows a standard deviation of 35 cm, GOCO05C shows a deviation of 13 cm, similar to the results obtained on land.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Global geopotential models
RTM data
Tierra del Fuego
GOCE
EGM2008
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/137754
Acceder
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network_name_str SEDICI (UNLP)
spelling Validation of recent geopotential models in Tierra Del FuegoGomez, María EugeniaPerdomo, Raúl AníbalDel Cogliano, Daniel HéctorCiencias AstronómicasGlobal geopotential modelsRTM dataTierra del FuegoGOCEEGM2008This work presents a validation study of global geopotential models (GGM) in the region of Fagnano Lake, located in the southern Andes. This is an excellent area for this type of validation because it is surrounded by the Andes Mountains, and there is no terrestrial gravity or GNSS/levelling data. However, there are mean lake level (MLL) observations, and its surface is assumed to be almost equipotential. Furthermore, in this article, we propose improved geoid solutions through the Residual Terrain Modelling (RTM) approach. Using a global geopotential model, the results achieved allow us to conclude that it is possible to use this technique to extend an existing geoid model to those regions that lack any information (neither gravimetric nor GNSS/levelling observations). As GGMs have evolved, our results have improved progressively. While the validation of EGM2008 with MLL data shows a standard deviation of 35 cm, GOCO05C shows a deviation of 13 cm, similar to the results obtained on land.Facultad de Ciencias Astronómicas y Geofísicas2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf931-943http://sedici.unlp.edu.ar/handle/10915/137754enginfo:eu-repo/semantics/altIdentifier/issn/1895-6572info:eu-repo/semantics/altIdentifier/issn/1895-7455info:eu-repo/semantics/altIdentifier/doi/10.1007/s11600-017-0085-yinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:24:10Zoai:sedici.unlp.edu.ar:10915/137754Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:24:10.838SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Validation of recent geopotential models in Tierra Del Fuego
title Validation of recent geopotential models in Tierra Del Fuego
spellingShingle Validation of recent geopotential models in Tierra Del Fuego
Gomez, María Eugenia
Ciencias Astronómicas
Global geopotential models
RTM data
Tierra del Fuego
GOCE
EGM2008
title_short Validation of recent geopotential models in Tierra Del Fuego
title_full Validation of recent geopotential models in Tierra Del Fuego
title_fullStr Validation of recent geopotential models in Tierra Del Fuego
title_full_unstemmed Validation of recent geopotential models in Tierra Del Fuego
title_sort Validation of recent geopotential models in Tierra Del Fuego
dc.creator.none.fl_str_mv Gomez, María Eugenia
Perdomo, Raúl Aníbal
Del Cogliano, Daniel Héctor
author Gomez, María Eugenia
author_facet Gomez, María Eugenia
Perdomo, Raúl Aníbal
Del Cogliano, Daniel Héctor
author_role author
author2 Perdomo, Raúl Aníbal
Del Cogliano, Daniel Héctor
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Global geopotential models
RTM data
Tierra del Fuego
GOCE
EGM2008
topic Ciencias Astronómicas
Global geopotential models
RTM data
Tierra del Fuego
GOCE
EGM2008
dc.description.none.fl_txt_mv This work presents a validation study of global geopotential models (GGM) in the region of Fagnano Lake, located in the southern Andes. This is an excellent area for this type of validation because it is surrounded by the Andes Mountains, and there is no terrestrial gravity or GNSS/levelling data. However, there are mean lake level (MLL) observations, and its surface is assumed to be almost equipotential. Furthermore, in this article, we propose improved geoid solutions through the Residual Terrain Modelling (RTM) approach. Using a global geopotential model, the results achieved allow us to conclude that it is possible to use this technique to extend an existing geoid model to those regions that lack any information (neither gravimetric nor GNSS/levelling observations). As GGMs have evolved, our results have improved progressively. While the validation of EGM2008 with MLL data shows a standard deviation of 35 cm, GOCO05C shows a deviation of 13 cm, similar to the results obtained on land.
Facultad de Ciencias Astronómicas y Geofísicas
description This work presents a validation study of global geopotential models (GGM) in the region of Fagnano Lake, located in the southern Andes. This is an excellent area for this type of validation because it is surrounded by the Andes Mountains, and there is no terrestrial gravity or GNSS/levelling data. However, there are mean lake level (MLL) observations, and its surface is assumed to be almost equipotential. Furthermore, in this article, we propose improved geoid solutions through the Residual Terrain Modelling (RTM) approach. Using a global geopotential model, the results achieved allow us to conclude that it is possible to use this technique to extend an existing geoid model to those regions that lack any information (neither gravimetric nor GNSS/levelling observations). As GGMs have evolved, our results have improved progressively. While the validation of EGM2008 with MLL data shows a standard deviation of 35 cm, GOCO05C shows a deviation of 13 cm, similar to the results obtained on land.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/137754
url http://sedici.unlp.edu.ar/handle/10915/137754
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1895-6572
info:eu-repo/semantics/altIdentifier/issn/1895-7455
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11600-017-0085-y
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
931-943
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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