DOD observing activities related to Arctic terrestrial hydrology and cryosphere focus mainly on perma¬frost at two facilities maintained by CRREL: the Permafrost Tunnel at Fox, Alaska, and the Permafrost Research Station at Fairbanks, Alaska. The permafrost tunnel is primarily a research facility, where ground temperatures have been monitored continuously since 1963. At the Permafrost Research Station, ground and air temperatures have been monitored intermittently since 1947; continuous measure¬ments resumed in 2006 and a Circumpolar Active Layer Monitoring (CALM) site was added in 2004. CRREL also monitors shallow ground temperatures at research sites at Shishmaref and Fort Wainwright, Alaska.
Alaska Fisheries Science Center (AFSC)
Circumpolar Active Layer Monitoring (CALM)