{"refrec":{"BRefID":338843,"RR":"<b>Jiang, Y.; Wu, X.; van den Broeke, M.R.; Kuipers Munneke, P.; Simonsen, S.B.; van der Wal, W.; Vermeersen, B.L.A.</b> (2021). Assessing global present‐day surface mass transport and glacial isostatic adjustment From inversion of geodetic observations. <i>JGR: Solid Earth 126(5)</i>: e2020JB020713. <a href=\"https://doi.org/10.1029/2020jb020713\" target=\"_blank\">https://doi.org/10.1029/2020jb020713</a>","BEntID":335478,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>JGR: Solid Earth 126(5)</i>: e2020JB020713. <a href=\"https://doi.org/10.1029/2020jb020713\" target=\"_blank\">https://doi.org/10.1029/2020jb020713</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Jiang, Y.; Wu, X.; van den Broeke, M.R.; Kuipers Munneke, P.; Simonsen, S.B.; van der Wal, W.; Vermeersen, B.L.A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Jiang, Y. <i>et al.</i>","Englishabstract":" Long-term monitoring of global mass transport within the Earth system    improves our ability to mitigate natural hazards and better understand    their relations to climate change. Satellite gravity is widely used to    monitor surface mass variations for its unprecedented spatial and temporal    coverage. However, the gravity data contain signals from visco-elastic    deformation in response to past ice sheet melting, preventing us from    extracting signals of present-day surface mass trend (PDMT) directly. Here    we present a global inversion scheme that separates PDMT and visco-elastic    glacial isostatic adjustment (GIA) signatures by combining satellite    gravimetry with satellite altimetry and ground observations. Our inversion    provides global dual data coverage that enables a robust separation of PDMT    and GIA spherical harmonic coefficients. It has the advantage of providing    estimates of Earth's long wavelength deformation signatures and their    uncertainties. Our GIA result, along with its uncertainty estimates, can be    used in future GRACE processing to better assess the impact of GIA on    surface mass change. Our GIA estimates include a rapid GIA uplift in the    Southeast Alaska and the Amundsen Sea Embayment, due to the visco-elastic    response to recent glacial unloading. We estimate the average surface mass    change rate from 2002–2010 to be −203 ± 3 GT·a<sup>−1</sup> in Greenland,    −126 ± 18 GT·a<sup>−1</sup> in Antarctica and, −62 ± 5 GT·a<sup>−1</sup> in    Alaska. The GIA low degree spherical harmonic coefficients are sensitive to    rheological properties in Earth's deep interior. Our low-degree GIA    estimates include geocenter motion and J<sub>2</sub> which provide unique constraints to understand Earth's lower mantle and ice    history.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Assessing global present‐day surface mass transport and glacial isostatic adjustment From inversion of geodetic observations","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-11 01:32:46.494147","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"geodesy; gravity; inversion; mass change","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2022-02-08","DateCreate":"2021-06-09","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000654526100079","VABBcode":null,"OpenAcc":1,"DOI":"10.1029/2020jb020713"},"refs":null,"anarec":{"AnaID":338843,"PubliDate":2021,"Pagination":"e2020JB020713","XtraPublOfAnaID":null,"ISBN":null,"Volume":"126","Issue":"5","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":272094,"SerRR":"Journal of Geophysical Research-Solid Earth. 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