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This polygon shapefile depicts year-round ice shelves and ice tongues in Antarctica. Data does not include seasonal ice which extends much farther around the entire continent, and that can vary considerably day to day. Land data is included for context. Ice edges were manually digitized from high resolution satellite based images from a variety of sensors, including MODIS, Sentinel, and RADARSAT-2, by experienced sea ice analysts at the US National Ice Center in Washington, DC, USA. This data has been extracted from the USNIC PRODUCTION geodatabase, where it constitutes the basic contextual data for all USNIC Antarctic sea ice data, including the regular Daily and Weekly sea ice products. Data is updated periodically, as required. |
| summary:
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This polygon shapefile depicts year-round ice shelves and ice tongues in Antarctica. Data does not include seasonal ice which extends much farther around the entire continent, and that can vary considerably day to day. Land data is included for context. Ice edges were manually digitized from high resolution satellite based images from a variety of sensors, including MODIS, Sentinel, and RADARSAT-2, by experienced sea ice analysts at the US National Ice Center in Washington, DC, USA. This data has been extracted from the USNIC PRODUCTION geodatabase, where it constitutes the basic contextual data for all USNIC Antarctic sea ice data, including the regular Daily and Weekly sea ice products. Data is updated periodically, as required. |
| accessInformation:
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United States National Ice Center |
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5000 |
| typeKeywords:
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[] |
| description:
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Esri shapefile with polygons representing Antarctic ice shelfs and land features, identified by the POLY_TYPE field ('S' or 'L' respectivly). Coordinate system is WGS 1984 Stereographic South Pole projection, based on the WGS84 datum. Central Meridian = 180.0 degrees, Standard Parallel = -60.0 degrees. False Easting = 0.0, False Northing = 0.0.</SPAN></P></DIV></DIV></DIV> |
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| title:
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USNIC_ANTARC_shelf_2019 |
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| tags:
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["Antarctic ice shelfs","Antarctic","Southern Sea","USNIC"] |
| culture:
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en-US |
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150000000 |
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