Mapping Data of Eelgrass (Zostera marina) Distribution, Alaska Peninsula and Nunivak Island
Provided here are two vector geospatial datasets that characterize the distribution of: (1) eelgrass (Zostera marina) and (2) seaweeds in waters adjacent to four National Wildlife Refuges in Alaska (Izembek NWR, Alaska Peninsula-Becharof NWR, Alaska Maritime NWR, and Yukon Delta NWR). These data were derived from satellite imagery (Landsat 5 TM and Landsat 7 ETM+) acquired on four different days (2002-08-02, 2006-07-20, 2007-06-04, 2009-08-04). After pre-processing, imagery was classified into land cover categories (eelgrass, seaweed, mud/sand, and channel). The eelgrass and seaweed distribution data were then extracted from the raster grid and converted to vector data.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "U.S. Geological Survey, Alaska Science Center", "@type": "vcard:Contact", "hasEmail": "mailto:gs-ak_asc_datamanagers@usgs.gov" } |
| description | Provided here are two vector geospatial datasets that characterize the distribution of: (1) eelgrass (Zostera marina) and (2) seaweeds in waters adjacent to four National Wildlife Refuges in Alaska (Izembek NWR, Alaska Peninsula-Becharof NWR, Alaska Maritime NWR, and Yukon Delta NWR). These data were derived from satellite imagery (Landsat 5 TM and Landsat 7 ETM+) acquired on four different days (2002-08-02, 2006-07-20, 2007-06-04, 2009-08-04). After pre-processing, imagery was classified into land cover categories (eelgrass, seaweed, mud/sand, and channel). The eelgrass and seaweed distribution data were then extracted from the raster grid and converted to vector data. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P9WEK4JI", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.ASC452.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_ASC452 |
| keyword |
[ "Alaska", "Alaska Peninsula National Wildlife Refuge", "Angiosperms (flowering plants)", "Animal and plant census", "Animals/Invertebrates", "Becharof National Wildlife Refuge", "Bering Sea", "Biota", "Coastal ecosystems", "Eelgrass", "Environment", "Estuarine ecosystems", "Field inventory and monitoring", "Gulf of Alaska", "Izembek National Wildlife Refuge", "Macroalgae (seaweeds)", "Marine ecosystems", "Marine environment monitoring", "Monocots", "Nunivak Island", "Remote sensing", "Seagrass", "Seagrass beds", "USGS:ASC452", "Yukon Delta National Wildlife Refuge", "Zostera marina" ] |
| modified | 2024-12-27T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -166.4, 54.8, -158.3, 60.4 |
| theme |
[ "geospatial" ] |
| title | Mapping Data of Eelgrass (Zostera marina) Distribution, Alaska Peninsula and Nunivak Island |
