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Earlier ice loss accelerates lake warming in the Northern Hemisphere

Earth Sciences

Earlier ice loss accelerates lake warming in the Northern Hemisphere

X. Li, S. Peng, et al.

Discover how long-term changes in lake ice phenology are reshaping surface water temperature across the Northern Hemisphere. This groundbreaking research by Xinyu Li, Shushi Peng, Yi Xi, R. Iestyn Woolway, and Gang Liu reveals that an 8-day advancement in ice break-up could significantly impact lake ecosystems, resulting in a remarkable 1.4-fold increase in warming during ice-off months.

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Playback language: English
Abstract
This study investigates the impact of long-term variations in lake ice phenology on surface water temperature trends across the Northern Hemisphere. Analysis of satellite data and global-scale simulations reveals widespread excess lake surface warming during ice-off months, averaging 1.4 times that of the open-water season. This excess warming is primarily attributed to an 8-day advancement in average ice break-up between 1979 and 2020. Future alterations in lake ice phenology are projected to further amplify this effect, impacting lake ecosystems.
Publisher
Nature Communications
Published On
Sep 02, 2022
Authors
Xinyu Li, Shushi Peng, Yi Xi, R. Iestyn Woolway, Gang Liu
Tags
lake ice phenology
surface water temperature
Northern Hemisphere
excess warming
ice break-up
ecosystem impact

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