TY - JOUR
T1 - Rapid increases in satellite-observed ice sheet surface meltwater production
AU - Zheng, Lei
AU - Shang, Xinyi
AU - van den Broeke, Michiel R.
AU - Noël, Brice
AU - Li, Xichen
AU - Fettweis, Xavier
AU - Liang, Qi
AU - Wang, Kang
AU - Liu, Jiping
AU - Cheng, Xiao
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer Nature Limited 2025.
PY - 2025/7
Y1 - 2025/7
N2 - Surface meltwater production influences the contribution of ice sheets to global sea-level change. Ice-sheet-wide meltwater production has thus far primarily been quantified by regional climate models. Here we present a 31-year (1992–2023) time series of daily satellite-observed surface melt flux for the Greenland and Antarctic ice sheets. The annual meltwater volume in Greenland has significantly increased, with intensified melt in the northern basins dominated by a negative North Atlantic Oscillation and elevated melt flux in western basins driven by the decline in Arctic sea-ice. In East Antarctica, high melt rates since 2000 are attributed to warm air incursions from the Southern Ocean due to anomalous atmospheric circulations associated with a negative Southern Annular Mode and the recovery of the Antarctic ozone hole. This region, previously less prone to surface melt, has become a melt hotspot, potentially leading to meltwater ponding and future ice shelf destabilization.
AB - Surface meltwater production influences the contribution of ice sheets to global sea-level change. Ice-sheet-wide meltwater production has thus far primarily been quantified by regional climate models. Here we present a 31-year (1992–2023) time series of daily satellite-observed surface melt flux for the Greenland and Antarctic ice sheets. The annual meltwater volume in Greenland has significantly increased, with intensified melt in the northern basins dominated by a negative North Atlantic Oscillation and elevated melt flux in western basins driven by the decline in Arctic sea-ice. In East Antarctica, high melt rates since 2000 are attributed to warm air incursions from the Southern Ocean due to anomalous atmospheric circulations associated with a negative Southern Annular Mode and the recovery of the Antarctic ozone hole. This region, previously less prone to surface melt, has become a melt hotspot, potentially leading to meltwater ponding and future ice shelf destabilization.
UR - https://www.scopus.com/pages/publications/105010226665
U2 - 10.1038/s41558-025-02364-4
DO - 10.1038/s41558-025-02364-4
M3 - 文章
AN - SCOPUS:105010226665
SN - 1758-678X
VL - 15
SP - 769
EP - 774
JO - Nature Climate Change
JF - Nature Climate Change
IS - 7
ER -
