High-resolution regional gravity field modeling to connect the local vertical systems in South America to the IHRF
Abstract Since 2015, the scientific community has been working on unifying the global vertical system, following the resolution for the definition and realization of an International Height Reference System. This paper aims to determine the vertical datum parameter between the local vertical system...
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| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | Earth, Planets and Space |
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| Online Access: | https://doi.org/10.1186/s40623-025-02226-5 |
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| author | Gabriel do Nascimento Guimarães Ana Cristina Oliveira Cancoro de Matos Denizar Blitzkow Flavio Guilherme Vaz de Almeida |
| author_facet | Gabriel do Nascimento Guimarães Ana Cristina Oliveira Cancoro de Matos Denizar Blitzkow Flavio Guilherme Vaz de Almeida |
| author_sort | Gabriel do Nascimento Guimarães |
| collection | DOAJ |
| description | Abstract Since 2015, the scientific community has been working on unifying the global vertical system, following the resolution for the definition and realization of an International Height Reference System. This paper aims to determine the vertical datum parameter between the local vertical system and the global one in seven countries (Argentina, Brazil, Chile, Colombia, Ecuador, Venezuela, and Uruguay) in South America. For this purpose, Global Navigation Satellite System/leveling data and geoid undulations from a regional gravity field model were used in the computation. The results showed that the vertical datum parameter varies from 0.29 m (Talcahuano tide gauge—Chile) to 1.69 m (Santana tide gauge—Brazil). Besides that, geopotential numbers were estimated using the regional gravity field model computed in this paper and compared with the last version of the continental model. This research enhances geodetic knowledge by improving the accuracy of vertical data, utilizing advanced data correction methods, and integrating geoid models linked to international reference systems. The findings represent a significant advancement in addressing height inconsistencies, integrating national height systems within a global reference framework, and providing crucial data for diverse scientific and practical applications. These results have direct implications for infrastructure projects, natural hazard mitigation, and environmental monitoring in South America. Graphical Abstract |
| format | Article |
| id | doaj-art-0958bd14ffac425cb7b7d41865e5c45a |
| institution | Kabale University |
| issn | 1880-5981 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Earth, Planets and Space |
| spelling | doaj-art-0958bd14ffac425cb7b7d41865e5c45a2025-08-20T04:01:23ZengSpringerOpenEarth, Planets and Space1880-59812025-07-0177112610.1186/s40623-025-02226-5High-resolution regional gravity field modeling to connect the local vertical systems in South America to the IHRFGabriel do Nascimento Guimarães0Ana Cristina Oliveira Cancoro de Matos1Denizar Blitzkow2Flavio Guilherme Vaz de Almeida3Faculdade de Engenharia Civil, Universidade Federal de UberlândiaDepartamento da Transportes, Escola Politécnica da Universidade de São PauloDepartamento da Transportes, Escola Politécnica da Universidade de São PauloDepartamento da Transportes, Escola Politécnica da Universidade de São PauloAbstract Since 2015, the scientific community has been working on unifying the global vertical system, following the resolution for the definition and realization of an International Height Reference System. This paper aims to determine the vertical datum parameter between the local vertical system and the global one in seven countries (Argentina, Brazil, Chile, Colombia, Ecuador, Venezuela, and Uruguay) in South America. For this purpose, Global Navigation Satellite System/leveling data and geoid undulations from a regional gravity field model were used in the computation. The results showed that the vertical datum parameter varies from 0.29 m (Talcahuano tide gauge—Chile) to 1.69 m (Santana tide gauge—Brazil). Besides that, geopotential numbers were estimated using the regional gravity field model computed in this paper and compared with the last version of the continental model. This research enhances geodetic knowledge by improving the accuracy of vertical data, utilizing advanced data correction methods, and integrating geoid models linked to international reference systems. The findings represent a significant advancement in addressing height inconsistencies, integrating national height systems within a global reference framework, and providing crucial data for diverse scientific and practical applications. These results have direct implications for infrastructure projects, natural hazard mitigation, and environmental monitoring in South America. Graphical Abstracthttps://doi.org/10.1186/s40623-025-02226-5SIRGASSouth America vertical datum parameterGeoid modelingIHRF |
| spellingShingle | Gabriel do Nascimento Guimarães Ana Cristina Oliveira Cancoro de Matos Denizar Blitzkow Flavio Guilherme Vaz de Almeida High-resolution regional gravity field modeling to connect the local vertical systems in South America to the IHRF Earth, Planets and Space SIRGAS South America vertical datum parameter Geoid modeling IHRF |
| title | High-resolution regional gravity field modeling to connect the local vertical systems in South America to the IHRF |
| title_full | High-resolution regional gravity field modeling to connect the local vertical systems in South America to the IHRF |
| title_fullStr | High-resolution regional gravity field modeling to connect the local vertical systems in South America to the IHRF |
| title_full_unstemmed | High-resolution regional gravity field modeling to connect the local vertical systems in South America to the IHRF |
| title_short | High-resolution regional gravity field modeling to connect the local vertical systems in South America to the IHRF |
| title_sort | high resolution regional gravity field modeling to connect the local vertical systems in south america to the ihrf |
| topic | SIRGAS South America vertical datum parameter Geoid modeling IHRF |
| url | https://doi.org/10.1186/s40623-025-02226-5 |
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