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  Consistent Patterns of Greenland Ice Sheet Changes Revealed by GRACE-FO Gravimetry and ICESat-2 Altimetry

Su, X., Shang, P., Chen, S., Luo, Z. (2023): Consistent Patterns of Greenland Ice Sheet Changes Revealed by GRACE-FO Gravimetry and ICESat-2 Altimetry, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3712

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020831 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020831_1
Genre: Conference Paper

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 Creators:
Su, Xiaoli1, Author
Shang, Peisi1, Author
Chen, Shuang1, Author
Luo, Zhicai1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: As a major contributor to global mean sea-level rise, the status of the Greenland ice sheet has received extensive concern. Observations from satellite gravimetry and satellite laser altimetry provides complementary measurements about the GrIS mass variations. However, the consistency of these two types of measurements has not been widely studied yet. Here we compare the patterns of the GrIS changes based on GRACE-FO gravimetry and ICESat-2 altimetry during the period from 2019 to 2021. Consistent spatial patterns between mass change and height change are shown over the GrIS during the study period, with mass loss mostly concentrated on its West, Southeast and Northeast parts. High correlation coefficient of 0.95 is found between the GrIS mass change and height change time series. We also attempt to estimate the density of snow/firn over the GrIS by using these two types of measurements. This study suggests the feasibility of constraining snow/firn density by combining observations from satellite gravimetry and satellite laser altimetry.

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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/IUGG23-3712
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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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