Sea Ice Extent
WorldPhysical EnvironmentMean extent of Arctic and Antarctic sea ice between 1981 and 2010
NSIDCA world map shows the sea ice extent at the beginning of 2022, with the highest coverage in the Arctic region around Canada, Greenland, and Russia, and some presence in the Antarctic region. These regions are highlighted in light blue.
Sea Ice Extent | -2.0 to 0.0 | 0.0 to 1.9 | 2.0 to 3.9 | 4.0 to 5.9 | 6.0 to 7.9 | 8.0 to 9.9 | 10.0 to 11.9 | 12.0 to 13.9 | 14.0 to 15.9 | 18.0 to 19.9 | 20.0 to 21.9 | 22.0 to 23.9 | 24.0 to 25.9 | 26.0 to 27.9 | 28.0 to 29.9 | Class | Rank | Percent of world reserves | Alexandra Falls | Athabasca Falls | Baileys Chute | Celilo Falls | Cohoes Falls | Cumberland Falls | Great Falls | Kettle Falls | Kootenai Falls | Little Falls | Louise Falls | Marcus Falls | Niagara Falls | Osprey Falls | Rearguard Falls | Sandstone Falls | Sherars Falls | Vermilion Falls | Virginia Falls | Waterloo Falls | Willamette Falls | Wind erosion | Water erosion | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.160% | 1.06% | 0.769% | 0.553% | 0.725% | 0.603% | 0.825% | 0.239% | 0.135% | 0.206% | 0.342% | 0.126% | 0.317% | 1.60% | 0.778% | 4.46% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 18.0% | 18.3% | ||||