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The Greenland ice sheet is an ice sheet which forms the second largest body of ice in the world. It is an average of 1.67 km (1.0 mi) thick, and over 3 km (1.9 mi) thick at its maximum. [2] It is almost 2,900 kilometres (1,800 mi) long in a north–south direction, with a maximum width of 1,100 kilometres (680 mi) at a latitude of 77°N , near ...
- 1,710,000 km² (660,000 sq mi)
- 1,100 km (680 mi)
- 2,400 km (1,500 mi)
- Ice sheet
The Greenland Ice Sheet total mass change for 1 September 2021 through mid-August 2022 was -146 ± 64 Gt, equivalent to ~0.4 mm of sea level rise and representing the 25th consecutive year of ice loss. Cold temperatures delayed summer ice loss, yet the ice sheet still experienced unprecedented melt events during 2022.
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.
Headlines. Winter snow accumulation was above average this year, but the Greenland Ice Sheet still lost 156 ± 22 Gt of mass from 1 September 2022 to 31 August 2023 because discharge and melting exceeded accumulation.
Jan 17, 2024 · NASA/USGS. A Landsat 8 image from Aug. 22, 2022, shows icebergs breaking from Zachariae Isstrom. From 1985 to 2022, as icebergs fell into the ocean at an accelerating rate, the Greenland Ice Sheet shed about 1,140 billion tons (1,034 billion metric tons) – one-fifth more mass than previously estimated. NASA/USGS.
The Greenland ice sheet covers ~1.63 million km 2 and contains ice equivalent to 7.4 m of eustatic sea level rise (Morlighem et al. 2017). Following decades of relative stability, the ice sheet has now lost mass almost every year since 1998, with tied years of record ice loss in 2012 and 2019 (Mankoff et al. 2021).
Nov 21, 2012 · Greenland Ice Sheet Today offers the latest satellite data on surface melting of the Greenland Ice Sheet. Surface melt on the ice sheet results from daily weather conditions that are driven by air temperatures, winds, and feedback effect from changes in the snow or surface dust and soot.
