The Thule High Arctic Atmospheric Observatory (THAAO), Greenland

The Thule High Arctic Atmospheric Observatory (THAAO) at Thule Air Base (76.5°N, 68.8°W) is located on South Mountain, at a 20-minute drive from main base, and is superintended by the Danish Meteorological Institute (DMI). Various ground-based instruments installed in the observatory are part of the international Network for Detection of Atmospheric Composition Change (NDACC, The Italian effort at Thule started in 1990 and is based on a collaboration between personnel of Univ. of Rome “La Sapienza”, ENEA and INGV, which together installed, maintained and operate a number of ground-based instruments devoted to the observation of the Arctic environment.