2002. This polygon shapefile contains ice observations in the Arctic region for August 12, 2002. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
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1997. This polygon shapefile contains ice observations in the Arctic region for January 13, 1997. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1996. This polygon shapefile contains ice observations in the Arctic region for February 19, 1996. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, and 2008. International Heat Flow Commission, International Association of Seismology and Physics of the Earth's Interior, and Oklahoma State University. Department of Geography. Cartography Service. This point shapefile contains heat flow data for Africa compiled from sources dating from 1939 to 2008. Heat flow is a measure of heat loss across ... International Heat Flow Commission.
1994. This polygon shapefile contains ice observations in the Arctic region for February 21, 1994. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1997. This polygon shapefile contains ice observations in the Arctic region for January 20, 1997. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1996. This polygon shapefile contains ice observations in the Arctic region for March 25, 1996. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1994. This polygon shapefile contains ice observations in the Arctic region for February 14, 1994. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1997. This polygon shapefile contains ice observations in the Arctic region for February 24, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1996. This polygon shapefile contains ice observations in the Arctic region for February 5, 1996. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).