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Five-minute grid shapefile with marine bird density data off central California, CDAS data (1980-2001)

Published by National Centers for Coastal Ocean Science | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 10, 2026 at 03:32 AM | Dataset Last Updated: January 01, 2002 at 12:00 AM
A shapefile of five minute grids that contains marine bird density data at-sea from the CDAS Central CA data set (1980-2001). It is a shapefile representing 5 minute x 5 minute latitude x longitude cells that house the densities (birds/sq.km.) of 40 species of marine birds during the Upwelling, Oceanic and Davidson Current Seasons. The number of marine birds seen in a cell was divided by the area sampled in the cell to estimate density. If a cell was surveyed more than once, densities were averaged and weighted according to effort. Cells that were surveyed but in which no birds were observed have densities of zero.

Resources

3 resources available

  • https://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/shapes/bird_shapes.zip

    ZIP
  • GCMD Keyword Forum Page

    TEXT/HTML
  • Full Metadata Record

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