1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, and 2004. National Center for Ecological Analysis and Synthesis. This raster dataset shows the intensity of ultraviolet (UV) radiation reaching the surface of Earth from August 1996 to July 2004 as part of the GS... Science.
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2001. National Atlas of the United States. The Bathymetric Shaded Relief of North America map layer shows depth ranges using colors, with relief enhanced by shading. The image was derived fr... National Atlas of the United States.
2001. National Atlas of the United States. The Bathymetry of North America map layer shows depth ranges using colors. The image was derived from the National Geophysical Data Center's ETOPO2... National Atlas of the United States.
4. International Bathymetric Chart of the Arctic Ocean, 30 Arc-Second Resolution GeoTIFF (Version 3.0)
1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, and 2011. IOC (Intergovernmental Oceanographic Commission), Jakobsson, M, Mayer, Larry A. (Larry Allan), 1952-, Coakley, Bernard, Dowdeswel, Julian A., Forbes, Steve, Fridman, Boris, 1956-, Hodnesdal, Hanne, Noormets, Riko, Pedersen, Richard J., 1952-, Rebesco, M. (Michele), Schenke, Hans Werner, Zarayskaya, Yulia, Daniela Accettella, Armstrong, Andrew, Anderson, Robert M., Bienhoff, Paul, Camerlenghi, A. (Angelo), Church, Ian, Edwards, Margo, Gardner, James V., Hall, John Kendrick, 1940-, Hell, Benjamin, Hestvik, Ole, Kristoffersen, Y., Marcussen, Christian, Mohammad, Rezwan, Mosher, David Cole, 1960-, Nghiem, Son V., Pedrosa, Maria Teresa, Travaglini, Paola G., and Weatherall, Pauline. This layer is a georeferenced raster image (GeoTIFF) of a digital bathymetric model (DBM) of the Arctic Ocean compiled with all multibeam, dense si... National Geophysical Data Center.
2001. United States. Minerals Management Service. This polygon shapefile shows the official protraction diagram (OPD) and leasing map boundaries for the United States, covering areas of the Outer C... Geological Survey (U.S.).
2001. This polygon shapefile contains ice observations in the Arctic region for April 2, 2001. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
2001. This polygon shapefile contains ice observations in the Arctic region for February 27, 2001. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
2001. This polygon shapefile contains ice observations in the Arctic region for February 28, 2001. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
2001. This polygon shapefile contains ice observations in the Arctic region for March 1, 2001. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
2001. This polygon shapefile contains ice observations in the Arctic region for March 12, 2001. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).