Assessing Global Present-day Surface Mass Transport and Glacial Isostatic ???????? Adjustment from Inversion of Geodetic Observations ...
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???????????? unprecedente...
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| Format: | Dataset |
| Language: | unknown |
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2023
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| Online Access: | https://dx.doi.org/10.48577/jpl.hgaivp https://dataverse.jpl.nasa.gov/citation?persistentId=doi:10.48577/jpl.HGAIVP |
| Summary: | 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 to???????????? provide estimates of the Earth’s long wavelength deformation signatures and their???????????? uncertainties. Our GIA result, along with its ... |
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