Thu Aug 14, F. Flechtner
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Liu, S. and Pail, R., 2025. The Glacier Changes in the Alps From the GRACE and GRACE Follow-On Missions (2002–2023). Journal of Geophysical Research (Earth Surface), 130(7):e2024JF008182, doi:10.1029/2024JF008182.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025JGRF..13008182L,
author = {{Liu}, S. and {Pail}, R.},
title = "{The Glacier Changes in the Alps From the GRACE and GRACE Follow-On Missions (2002{\textendash}2023)}",
journal = {Journal of Geophysical Research (Earth Surface)},
keywords = {satellite gravimetry, GRACE, glacier change, Alps, vertical deformation, forward modeling},
year = 2025,
month = jul,
volume = {130},
number = {7},
eid = {e2024JF008182},
pages = {e2024JF008182},
abstract = "{In this paper, time-variable gravity field data from the Gravity
Recovery and Climate Experiment (GRACE) and GRACE Follow-On
(GRACE-FO) missions are used to quantify glacier mass changes in
the Alps from 2002 to 2023. We employ a new method that utilizes
the vertical surface displacement data to correct the glacial
isostatic adjustment and tectonic uplift signals. This approach
increases the mass change signal by 0.8 {\ensuremath{\pm}} 0.1
Gt/yr. We further include two land hydrology models, Global Land
Data Assimilation System Version 2.1 (GLDAS V2.1) and the land
component of the Fifth Generation European Reanalysis
(ERA5-Land), to correct the gravity data for hydrological
signals. We demonstrate three different forward modeling-derived
schemes to recover the signals from GRACE/GRACE-FO observations.
Our results, when compared with the annual glacier mass balance
from the World Glacier Monitoring Service, indicate that among
the three experimental schemes, the global unconstrained forward
modeling algorithm demonstrates the best performance in
estimating glacier mass change in the Alps. Overall, applying
our new vertical deformation correction method, we find that the
total glacier mass loss rate in the Alps is ‑2.4
{\ensuremath{\pm}} 0.8 Gt/yr using GRACE/GRACE-FO Level-2 data.
Our results identify a 3-month lag between land surface
temperature and glacier mass variations, which is related to the
response of glacier melt and accumulation to temperature
variations.}",
doi = {10.1029/2024JF008182},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025JGRF..13008182L},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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Thu Aug 14, F. Flechtner