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Depth-to-basement, sediment-thickness, and bathymetry data for the Deep-Sea Basins offshore of Washington, Oregon, and California

Data Catalog

The data were compiled in ArcMap (version 10.2). Raster data layers are georeferenced GeoTIFF images and are in the UTM Zone 10 coordinate system, referenced to World Geodetic system 1984. Line features are in shapefile format and are unprojected geographic coordinates, referenced to World Geodetic system 1984. Users should create a single new folder within which to unzip the files.

** The downloadable data files have been compressed with Windows7 folder menu > Send to > Compressed (zipped) folder, and can be unzipped with Winzip (or other similar tool) on Windows systems. The bathymetry raster zip file, for example, contains

cowbatg.jpg — browse image,
cowbatg.tfw — image-to-world transformation parameters,
cowbatg.tif — raster in geotiff format,
cowbatg.tif.aux.xml — auxiliary information for the raster file, such as projection, statistics, pointer to pyramid file (if present), etc.,
cowbatg.tif.met — metadata for raster in text format,
cowbatg.tif.ovr — raster pyramid file,
cowbatg.tif.xml — metadata for raster in .xml format, and
cowbatg_tif.lyr — paramenters for rendering raster in Arcmap

As an example of the shapefile package, the bathymetry shapefile zip includes

cowbat.dbf — dBASE table that stores the attribute information of features,
cowbat.jpg — browse image,
cowbat.prj — coordinate system information,
cowbat.sbn — spatial index of the features,
cowbat.sbx — spatial index of the features,
cowbat.shp — feature geometry,
cowbat.shx — index of the feature geometry,
cowbathy.shp.met — metadata in plain text,
cowbathy.shp.xml — metadata in XML code, and
cowbat_shp.lyr — parameters for rendering shapefile in Arcmap

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