Articles | Volume 19, issue 8
https://doi.org/10.5194/tc-19-3139-2025
https://doi.org/10.5194/tc-19-3139-2025
Research article
 | 
20 Aug 2025
Research article |  | 20 Aug 2025

Factors influencing lake surface water temperature variability in West Greenland and the role of the ice sheet

Laura Carrea, Christopher J. Merchant, Richard I. Woolway, and Niall McCarroll

Data sets

ASTER Global Digital Elevation Model V003 NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team https://doi.org/10.5067/ASTER/ASTGTM.003

GLOBathy, the Global Lakes Bathymetry Dataset B. Khazaei et al. https://doi.org/10.6084/m9.figshare.c.5243309.v1

ESA Lakes Climate Change Initiative (Lakes_cci): Lake products, Version 2.0.2 L. Carrea et al. https://doi.org/10.5285/a07deacaffb8453e93d57ee214676304

ESA Cloud Climate Change Initiative (Cloud_cci), Version 3.0 M. Stengel et al. https://doi.org/10.5676/DWD/ESA_Cloud_cci/AVHRR-PM/V003

ESA Sea Surface Temperature Climate Change Initiative (SST_cci): Level 4 Analysis Climate Data Record, version 2.1 S. A. Good et al. https://doi.org/10.5285/62c0f97b1eac4e0197a674870afe1ee6

ERA5-Land hourly data from 1981 to present J. Muñoz Sabater https://doi.org/10.24381/cds.e2161bac

Landsat 8-9 Operational Land Imager/Thermal Infrared Sensor Level-1, Collection 2 Earth Resources Observation and Science (EROS) Center https://doi.org/10.5066/P975CC9B

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Short summary
Lakes in Greenland serve as a crucial sentinel of climate change. Satellites can be used to monitor water temperature and ice. Using 28 years of measurements from satellites, we conclude that lakes are overall warmer than previously thought. The lakes connected to the ice sheet are cooler than the rest because of cold glacial meltwater inflow. Changes in water temperature can impact light availability, nutrient cycling, and oxygen levels that are crucial for the lake ecosystem and have an influence on the ice sheet.
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