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snippet:
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Summary version of PaCSEA - North Pacific Coast Seabird Survey by USGS 2011-2012 |
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summary:
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Summary version of PaCSEA - North Pacific Coast Seabird Survey by USGS 2011-2012 |
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extent:
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[[-128.249029663002,39.0016064427927],[-121.299416888029,47.3425689946178]] |
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accessInformation:
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BOEM |
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thumbnail:
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thumbnail/thumbnail.png |
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typeKeywords:
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["Data","Service","Map Service","ArcGIS Server"] |
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description:
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This data set was created as a summary layer to more easily represent the original PaCSEA bird transect counts at a consistent scale across the transect for display within MarineCadastre.gov. These map layers display the density of birds (birds/sq km) detected in the Pacific Continental Shelf Environmental Assessment (PaCSEA) 2011 – 2012. PaCSEA involved repeated low-elevation aerial surveys along 32 broad-scale transects to quantify seabirds and marine mammals from shore to the 2000-m isobath. Transects were spaced 15 nautical miles (nmi) apart, between Fort Bragg, California (39° N) and Grays Harbor, Washington (47° N). Surveys were conducted from fixed wing aircraft flying 160 km/h at 60-m above sea level. All birds and marine mammals within a 150 m transect (75 m per side) were counted. Six complete surveys were conducted with 3 surveys each year (winter, summer, and fall). While the actual area sampled varied slightly among surveys, this summary representation uses 6.8 x 6.8 km polygons to display estimates of bird density for all surveys. The actual transect areas are also included in a single file for all 6 surveys. Please consult the metadata file for information and file access for the original study products. |
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licenseInfo:
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catalogPath:
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title:
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USGS BOEM PaCSEA Seabird Density, 2011-2012 |
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type:
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Map Service |
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url:
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tags:
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["avian","birds","pacific","west coast","BOEM","USGS","offshore","ocean","wildlife","survey"] |
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culture:
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en-US |
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name:
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USGS_BOEM_PACSEA_SEABIRD_DENSITY |
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guid:
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7AB84F31-9714-4640-A3AD-A9533B601B1F |
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spatialReference:
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WGS_1984_Web_Mercator_Auxiliary_Sphere |