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2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the shoreline boundary between the Antarctic ice and the Antarctic Ocean at full resolution. GSHHG data are made ... United States. National Geospatial-Intelligence Agency.
2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the shoreline boundary between the Antarctic ice and the Antarctic Ocean at high resolution. High represents an 8... United States. National Geospatial-Intelligence Agency.
2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the shoreline boundary between the Antarctic ice and the Antarctic Ocean at intermediate resolution. Intermediate... United States. National Geospatial-Intelligence Agency.
2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the shoreline boundary between the Antarctic ice and the Antarctic Ocean at low resolution. Low represents an 80 ... United States. National Geospatial-Intelligence Agency.