North Circumpolar Region (2017)

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Base map features from Northern Circumpolar Cartographic Base Data at 1: 9 000 000 and Canadian Geographical Names Data Base, Canada Centre for Mapping and Earth Observation, Natural Resources Canada, 2014. Foreign names compiled from National Geospatial-lntelligence Agency (U.S.A.), Geographic Names Data Base search, 2014.

Bathymetry derived from the International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 2.2, 2008 (www.ibcao.org).

Glacier and ice sheet data derived in part from the Digital Geological Map 1:500 000, Geological Survey of Denmark and Greenland (GEUS); MODIS satellite imagery (April to September 2014), Canada Centre for Remote Sensing,

Natural Resources Canada; and Randolph Glacier Inventory 5.0 (July 2015 Release), GLIMS Web Mapping Service.

Ice shelf data as of March 2015, from D. Mueller, Carleton University, Department of Geography and Environmental Studies, Ottawa.

Land relief for Canada derived from Canada 3D digital elevation model produced by the Canadian Forest Service.

Natural Resources Canada (geogratis.gc.ca). Land relief outside Canada derived from the United States Geological Survey’s GTOP030 digital elevation model (eros.usgs.gov).

Median sea ice extent (for September 1981-2010) compiled by Canadian Ice Service, Environment Canada, 2013.

Tree line provided by the Alaska Geobotany Center (www.geobotany.uaf.edu): Circumpolar Arctic Vegetation Map, 2003.

Scale 1:7 500 000. Conservation of Arctic Flora and Fauna Map No. 1. U.S. Fish and Wildlife Service, Anchorage, Alaska, U.S.A.

Source: canada.ca