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18 cze 2024 · Ice Sheets Today offers the latest satellite data and scientific analyses on surface melting of the Greenland Ice Sheet in the Northern Hemisphere and Antarctic Ice Sheet in the Southern Hemisphere. Surface melt on each ice sheet results from a combination of daily weather conditions and the amount of solar energy absorbed by its snow and ice.
23 sie 2021 · This image, acquired by one of the Copernicus Sentinel-2 satellites on 21 August 2021, shows meltwaters flowing above the ice cap near Kangerlussuaq in southwest Greenland. A massive melting of the ice sheet occurred in conjunction with a heatwave, during which rain was observed ... Show more.
9 cze 2022 · In some areas of western Greenland, the air temperature anomaly was 15°C higher than the reference value, resulting in a significant melting of the ice cap. According to climatologists of the University of Liège, this episode is the most important melting event of the 2021-2022 season.
23 sie 2003 · As Greenland’s ice sheet melts, bright-white snow and ice reveal dark-colored bare ground. Lighter-colored surfaces, like ice and snow, reflect sunlight and contribute to cooler temperatures. But dark surfaces, like bare ground, absorb sunlight and amplify warming.
7 sty 2022 · 2021 marked the 25th year in a row in which the key Greenland ice sheet lost more mass during the melting season, than it gained during the winter, according to a new UN-endorsed report...
10 gru 2019 · With the computing power of Google Earth Engine, Lea analyzed images of the Greenland ice sheet from the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellites for every day of every melt seasons over last 20 years – more than 18,000 images in all.
Ice sheets gain mass from net snow accumulation and lose mass through meltwater runoff and solid ice discharge. The sum of accumulation and runoff is termed surface mass balance (SMB) and is primarily responsive to air temperature, snow cover, albedo, and bare-ice area.
