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1975. This polygon shapefile contains ice observations in the Arctic region for September 29, 1975. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1975. This polygon shapefile contains ice observations in the Arctic region for September 4, 1975. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1975. This polygon shapefile contains ice observations in the Arctic region for September 8, 1975. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
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, 2008, 2009, 2010, 2011, 2012, and 2013. Nature Conservancy (U.S.). This shellfish habitat layer was derived from datasets from Maine, Massachusetts and New Hampshire state GIS resources. Shapefiles downloaded/provi... Northeast Ocean Data.