Abstract

The Glacial Isostatic Adjustment (GIA) effect in the Tibetan Plateau has been controversial because the past and present dimensions of ice sheets are not clear and in-situ observations are less. In this study, the Gravity Recovery And Climate Experiment (GRACE) and Ice, Cloud, and land Elevation Satellite (ICESat) measurements are used to estimate the ice mass balance and Glacier Isostatic Adjustment (GIA) effects in the Tibetan Plateau. The GIA effects, which contribute to the uncertainty in estimating the ice mass change on the Tibetan plateau, are very controversial. The total mass change measured by ICESat and hydrological models are subtracted from the GRACE terrestrial water storage, and the residual signals are mainly the GIA effects. After the correction of truncation and filtering effects from GRACE, the GIA effects are estimated by residual signal, which are further compared and validated by GIA

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