Mapmaster

MapMaster 3

Atlas (Beta)
MapMaster 3

Sea Ice Extent

WorldPhysical Environment

Mean extent of Arctic and Antarctic sea ice between 1981 and 2010

NSIDC

A 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.

Add Columns

Sea Ice Extent

Coastal Areas of Eutrophication and Hypoxia

Major Territorial Acquisitions (U.S.)

Sea Ice Extent

Hypoxic

Eutrophic

Extent of U.S., 1803

Louisiana Purchase, 1803

West Florida, 1810–1813

British Cession, 1818

East Florida, 1819

Northern Maine, 1842

Texas Annexation, 1845

Oregon Country, 1846

Mexican Cession, 1848

Gadsden Purchase, 1853

Alaska, 1867

Hawaii, 1898

Nunavut
0.158%
Nova Scotia
2
Prince Edward Island
1.54%1
Newfoundland and Labrador
0.162%1
Alaska
194.5%
Arizona
76.2%23.8%
Utah
100%
District of Columbia
97.6%
Florida
431198.3%
Idaho
99.8%
New Hampshire
199.9%
Rhode Island
397.7%
Vermont
99.9%
Washington
7399.4%
Wyoming
70.3%4.53%12.4%12.7%
Montana
82.4%17.6%
Maine
382.4%16.6%
North Dakota
57.6%42.4%
Kentucky
99.9%
Virginia
599.5%
Delaware
6198.0%
Mississippi
3192.2%7.44%
West Virginia
100%
Nebraska
100%
Texas
11299.5%
Missouri
99.7%
Louisiana
686.4%12.4%
Hawaii
91.5%
North Carolina
1599.2%
Oregon
299.8%
Alabama
3195.7%4.16%
New Mexico
57.5%40.3%2.23%
Kansas
91.7%8.26%
Wisconsin
99.8%
British Columbia
1.43%
New Jersey
599.0%
South Carolina
1599.6%
Michigan
99.9%
Connecticut
299.6%
Pennsylvania
100%
Colorado
41.3%32.3%26.4%
Nevada
99.9%
Massachusetts
398.1%
Georgia
5199.8%
New York
599.4%
Maryland
896.9%
Oklahoma
91.6%8.45%
Tennessee
99.9%
California
7299.7%
Arkansas
99.8%
South Dakota
99.1%
Ohio
100%
Indiana
100%
Minnesota
33.8%45.1%20.9%
Iowa
99.8%
Illinois
99.7%
0.16.0