The Uruguayan gravimetric geoid: UruGeoide2007

DOI

The Uruguayan gravimetric geoid model UruGeoide2007 was calculated by the Military Geographic Service (SGM) in 2007. The extent is from 29° S to 36° S in latitude and 52° W to 60° W in longitude, with a grid resolution of 1´ x 1´. The geodetic reference system is WGS84. The computation was based on the remove-restore procedure, using 8433 gravity observations from stations in Argentina, Brasil and Uruguay, 9172 marine free-air gravity anomalies from the KMS02 model, the GGM02C geopotential model, the SRTM terrain model and the DNSC05 bathymetric model. The reduced height anomalies were computed from the reduced gravity anomalies by Stokes integration via spherical Fast Fourier Transform. After adding back the residual terrain model effects and the contribution of the global geopotential model, the obtained quasi-geoid was transformed into a geoid model by using a Bouguer anomaly grid, even if the difference between the two models is 1 cm at most.

The geoid model is provided in ISG format 2.0 (ISG Format Specifications), while the file in its original data format is available at the model ISG webpage.

The International Service for the Geoid (ISG) was founded in 1992 (as International Geoid Service - IGeS) and it is now an official service of the International Association of Geodesy (IAG), under the umbrella of the International Gravity Field Service (IGFS). The main activities of ISG consist in collecting, analysing and redistributing local and regional geoid models, as well as organizing international schools on the geoid determination (Reguzzoni et al., 2021).

Identifier
DOI https://doi.org/10.5880/isg.2007.002
Related Identifier IsDocumentedBy https://www.isgeoid.polimi.it/Geoid/America/Uruguay/Modelo_Geoidal_SGM2007.pdf
Related Identifier References https://doi.org/10.1007/978-3-642-72245-5_8
Related Identifier References https://doi.org/10.5194/essd-13-1653-2021
Related Identifier References http://www.isgeoid.polimi.it/
Related Identifier IsVariantFormOf https://doi.org/10.5880/isg.2007.001
Related Identifier IsVariantFormOf https://doi.org/10.5880/isg.2007.003
Metadata Access http://doidb.wdc-terra.org/oaip/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:doidb.wdc-terra.org:7977
Provenance
Creator Subiza Piña, Walter Humberto (ORCID: 0009-0006-7133-806X)
Publisher GFZ Data Services
Contributor Reguzzoni, Mirko; Carrion, Daniela; Rossi, Lorenzo; Subiza Piña, Walter Humberto; ISG Staff
Publication Year 2007
Rights CC BY 4.0; http://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact Subiza Piña, Walter Humberto (Servicio Geográfico Militar, Montevideo, Uruguay); ISG Staff (International Service for the Geoid (ISG))
Representation
Resource Type Dataset
Version 1.0
Discipline Geodesy, Geoinformatics and Remote Sensing
Spatial Coverage (-60.000W, -36.000S, -52.000E, -29.000N); Gravimetric geoid model: UruGeoide2007