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  Towards UNB_TopoDens version 3.0: The first global 3D topographical density model

Sheng, M., Shaw, C., Kingdon, R., Vaníček, P., Santos, M., Foroughi, I. (2023): Towards UNB_TopoDens version 3.0: The first global 3D topographical density model, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3164

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020548 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020548_1
Genre: Conference Paper

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 Creators:
Sheng, Michael1, Author
Shaw, Cliff1, Author
Kingdon, Robert1, Author
Vaníček, Petr1, Author
Santos, Marcelo1, Author
Foroughi, Ismael1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: After the creation and publication of the UNB_TopoDens_2v01 laterally varying topographic density model, many research groups and organizations across the world implemented this high-resolution density information for a wide variety of geodetic and geophysical applications. Our most frequently asked question from users is whether there will be a three-dimensional version of the density model. The answer is yes. By combining the depth dependent estimates of density based on material bulk moduli with models of expected geological structures, we believe that the creation of a three-dimensional density model of topography is possible using already existing datasets. In this study, we investigate the depth dependent density variations within the Earth’s topography and assess the validity of using topographical surface densities to provide density estimates of various crustal structures. The goal of UNB_TopoDens 3.0 is to generate a three-dimensional density model of the Earth’s topography, which is important for geoid modelling applications. Future work will focus on refining crustal models and expanding the density model to the Mohorovičić discontinuity.

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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-3164
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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
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Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
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