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  Combining global hlSST and SLR to bridge the gap between GRACE and GRACE-Follow

Weigelt, M., Jäggi, A., Meyer, U., Arnold, D., Mayer-Gürr, T., Öhlinger, F., Sośnica, K., Ebadi, S., Steffen, H. (2023): Combining global hlSST and SLR to bridge the gap between GRACE and GRACE-Follow, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3223

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020591 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020591_1
Genre: Conference Paper

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 Creators:
Weigelt, Matthias1, Author
Jäggi, Adrian1, Author
Meyer, Ulrich1, Author
Arnold, Daniel1, Author
Mayer-Gürr, Torsten1, Author
Öhlinger, Felix1, Author
Sośnica, Krzysztof1, Author
Ebadi, Sahar1, Author
Steffen, Holger1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: GRACE and GRACE-Follow On time series suffer from a data gap of about one year and there is the need for an intermediate technique that will bridge the gap between the two missions. The combination of high-low satellite-to-satellite tracking (hlSST) of low-Earth orbiting satellites by GNSS in combination with SLR is the most promising candidate and will allow 1) for a continued and uninterrupted time series of mass observations and 2) to compare, cross-validate and link the two time series. SLR is known to provide highest quality time-variable gravity for the very low degrees (2-5) and hlSST is able to provides a higher spatial resolution at a lower precision in the very low degrees. Here, we present a complete series of time-variable gravity field solution based on high-low satellite-to-satellite tracking and satellite laser ranging that covers the time from 2003 till 2022 including the gap period between the end of the GRACE mission in 2017 and the first available solutions of GRACE-Follow On in 2018.

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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-3223
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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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