Articles | Volume 18, issue 2
Research article
20 Feb 2024
Research article |  | 20 Feb 2024

Globally consistent estimates of high-resolution Antarctic ice mass balance and spatially resolved glacial isostatic adjustment

Matthias O. Willen, Martin Horwath, Eric Buchta, Mirko Scheinert, Veit Helm, Bernd Uebbing, and Jürgen Kusche

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How well can satellite altimetry and firn models resolve Antarctic firn thickness variations?
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The Cryosphere Discuss.,,, 2023
Revised manuscript under review for TC
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Sensitivity of inverse glacial isostatic adjustment estimates over Antarctica
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Cited articles

Barletta, V., Bevis, M., Smith, B., Wilson, T., Brown, A., Bordoni, A., Willis, M., Khan, S., Rovira-Navarro, M., Dalziel, I., Smalley Jr., R., Kendrick, E., Konfal, S., Caccamise II, D., Aster, R., Nyblade, A., and Wiens, D.: Observed rapid bedrock uplift in Amundsen Sea Embayment promotes ice-sheet stability, Science, 360, 1335–1339,, 2018. a
Blewitt, G. and Clarke, P.: Inversion of Earth's changing shape to weigh sea level in static equilibrium with surface mass redistribution, J. Geophys. Res., 108, 2311,, 2003. a
Blewitt, G., Kreemer, C., Hammond, W., and Gazeaux, J.: MIDAS robust trend estimator for accurate GPS station velocities without step detection: MIDAS Trend Estimator for GPS Velocities, J. Geophys. Res.-Sol. Ea., 121, 2054–2068,, 2016. a
Buchta, E., Scheinert, M., King, M., Wilson, T., Kendrick, E., Koulali, A., Clarke, P., and Knöfel, C.: GIANT-REGAIN: A comprehensive analysis of geodetic GNSS recordings in Antarctica for geodetic and geodynamic applications, 347 pp., SCAR, ISBN 978-0-948277-64-1, (last access: 12 April 2023), 2022. a
Caron, L. and Ivins, E.: A baseline Antarctic GIA correction for space gravimetry, Earth Planet. Sc. Lett., 531, 115957,, 2020. a
Short summary
Shrinkage of the Antarctic ice sheet (AIS) leads to sea level rise. Satellite gravimetry measures AIS mass changes. We apply a new method that overcomes two limitations: low spatial resolution and large uncertainties due to the Earth's interior mass changes. To do so, we additionally include data from satellite altimetry and climate and firn modelling, which are evaluated in a globally consistent way with thoroughly characterized errors. The results are in better agreement with independent data.