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select term... accumulation alpine Arctic Circle continuous permafrost cryosphere discontinuous permafrost glacier ice core ice sheet isolated permafrost maritime North Pole, Geographic North Pole, Geomagnetic North Pole, Magnetic North Pole of Cold North Pole of Inaccessibility permafrost permafrost ice content permafrost extent Prime Meridian sea ice sea ice concentration sea ice extent seasonal snow snow snow extent sporadic permafrost snow water equivalent taiga treeline Tropic of Cancer tundra

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Arctic Circle Canadian provinces cities country borders country labels Equator geographic features, ice geographic features, land geographic features, sea Greenland Climate Network Greenland elevation contours Greenland ice cores International Date Line latitude/longitude grid North Pole, Geographic North Pole, Geomagnetic North Pole, Magnetic North Pole of Cold North Pole of Inaccessibility Prime Meridian treeline Tropic of Cancer U.S. states x/y grid (meters)

Glacier basemaps:  (What is a glacier?)

none glaciers glacier outlines

Greenland basemaps:  (What is an ice sheet?)

none bedrock elevation ice sheet thickness snow accumulation surface elevation surface melt

Permafrost basemaps:  (What is permafrost?)

none permafrost extent permafrost classification

Satellite imagery:

none January July

Sea ice basemaps:  (What is sea ice?)

none sea ice extent: Jan sea ice extent: Feb sea ice extent: Mar sea ice extent: Apr sea ice extent: May sea ice extent: Jun sea ice extent: Jul sea ice extent: Aug sea ice extent: Sep sea ice extent: Oct sea ice extent: Nov sea ice extent: Dec sea ice concentration: Jan sea ice concentration: Feb sea ice concentration: Mar sea ice concentration: Apr sea ice concentration: May sea ice concentration: Jun sea ice concentration: Jul sea ice concentration: Aug sea ice concentration: Sep sea ice concentration: Oct sea ice concentration: Nov sea ice concentration: Dec

Snow basemaps:

none seasonal snow classification snow extent: Jan snow extent: Feb snow extent: Mar snow extent: Apr snow extent: May snow extent: Jun snow extent: Jul snow extent: Aug snow extent: Sep snow extent: Oct snow extent: Nov snow extent: Dec snow water equivalent: Jan snow water equivalent: Feb snow water equivalent: Mar snow water equivalent: Apr snow water equivalent: May snow water equivalent: Jun snow water equivalent: Jul snow water equivalent: Aug snow water equivalent: Sep snow water equivalent: Oct snow water equivalent: Nov snow water equivalent: Dec