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Minerals Management Service.

Western Coastal and Marine Geology

U.S. Geological Survey
Open-File Report 2007-1271
Version 2.0

Seafloor Mapping and Benthic Habitat GIS for Southern California, Volume III

DATA CATALOG

This data catalog has been updated from an earlier open-file report 2007-1271 (version 1.0). In this updated catalog, each GIS data file is listed with a brief description, links to figures, metadata files, and downloadable files. The data were compiled in ArcInfo (version 9.1 ESRI, 2005). Raster data layers are either ASCIIRASTER or registered TIFF images in the UTM Zone 11 coordinate system with datum WGS84. Point, line and polygon features are in shapefile format, and are projected in UTM Zone 11 coordinates with horizontal datum WGS84. We recommend you create a single new folder within which to unzip the files you want to use.

The downloadable files have been compressed with WinZip. The .zip file for a TIFF image includes the image (.tif) and the world registration file (.tfw). The ASCIIRASTER .zip file contains the ascii file (.asc) and projection file (.prj). The .zip for a shape file includes .aux, .dbf , .shp, .shx, .sbx, .sbn, and .prj files.

This new data catalog also provides new bathymetry grids that correct a vertical offset within the older bathymetry data sets available in 2007-1271 (version 1.0).

ArcGIS Project File

Save this ArcGIS Project file S105SC.mxd (4.4M) to the directory you created for this GIS to view with ArcGIS.

GIS data files







ArcGIS Theme Description

Quick view

Metadata

Compressed Files

Right-click (Windows) or click-and-hold (Macintosh) to download files from web

Basemaps

Survey tracks from one-minute navigation fixes

Tracklines.html

text

html

faq

xml

tracklines.zip 10.3K (20K)

10 Meter contours of entire study area

Contours10m.html

text

html

faq

xml

contours10m.zip 9.4K (19.4K)
Video habitat observations
Assorted visual observations of benthic habitat from video Video_Observations.html

text

html

faq

xml

video_obs.zip 58.5K (2M)

Interferometric Bathymetry
Channel West bathymetry data in ESRI ASCII GRID format

Channel West Bathymetry.html

text

html

faq

xml

chanwest_bath.zip 63M (239M)
Channel Central bathymetry data in ESRI ASCII GRID format

Channel Central Bathymetry.html

text

html

faq

xml

chancen_bath.zip 66M (249M)
Channel East bathymetry data in ESRI ASCII GRID format

Channel East Bathymetry.html

text

html

faq

xml

chaneast_bath.zip 93M (377M)
Acoustic Backscatter
Channel West backscatter data in ArcInfo format.

Channel_West_Backscatter.html

text

html

faq

xml

chanwest_back.zip 57M (98M)
Channel Central backscatter data in ArcInfo format.

Channel_Central_Backscatter.html

text

html

faq

xml

chancen_back.zip 58M (118M)
Channel East backscatter data in ArcInfo format.

Channel_East_Backscatter.html

text

html

faq

xml

chaneast_back.zip 100M (223M)
Benthic habitat polygon shape file
Habitat Polygon Shapefile

all_hab.html

text

html

faq

xml

all_hab.zip 203.5K (1.8M)
PDF Maps

(Note: You will need to have the free Adobe® Reader v.6.0 or higher installed on your computer to view and print the below PDF documents)

Get Adobe Reader
Shaded Relief with Contours

Hillshade_Bathy.pdf

text

html

faq

xml

Hillshade_Bathy.pdf 2.7M
Backscatter Data for the Entire Region

all_back.pdf

text

html

faq

xml

all_back.pdf 2.5M
Habitat Map

Habitat_Map.pdf

text

html

faq

xml

Habitat_Map.pdf 1.3M

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URL: http://pubs.usgs.gov/of/2007/1271/catalog.html
Page Maintained By: Michael Diggles
Page Contact Information: Guy R. Cochrane
Page Last Modified: 6 July 2010 (pd)