United States Geological Survey, 2005, XYZ format of the 2004 Multibeam Backscatter Data in the Northeastern Channel Islands Region, Southern California:.This is part of the following larger work.Online Links:
- <http://pubs.wr.usgs.gov/of/2005/1153/ci-data.html>
- <http://pubs.wr.usgs.gov/of/2005/1153/ci-data.html/bathyxyz.zip>
Dartnell, Peter, Cochrane, Guy, and Dunaway, Mary Elaine , 2005, Multibeam Bathymetry and Backscatter Data: Northeastern Channel Islands Region, Southern California: Open-File Report 2005-1153, U.S. Geological Survey, Coastal and Marine Geology Program, Western Coastal and Marine Geology, Menlo Park, CA.Online Links:
This is a Point data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.00015. Longitudes are given to the nearest 0.00015. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is WGS84.
The ellipsoid used is WGS84.
The semi-major axis of the ellipsoid used is 6378137.00 meters.
The flattening of the ellipsoid used is 1/0.003352811.
Example of Backscatter XYZ ASCII file
Longitude, Latitude, DN Value (decimal degree, decimal degree, DN value) -119.54421,33.72640,207.696 -119.54413,33.72640,206.398 -119.54405,33.72640,203.770 -119.54398,33.72640,201.170 -119.54390,33.72640,201.098 -119.54382,33.72640,202.064 -119.54374,33.72640,202.693 -119.54367,33.72640,202.720 -119.54444,33.72640,201.992
(650) 329-5460 (voice)
(650) 329-5411 (FAX)
pdartnell@usgs.gov
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) or other software to display acoustic backscatter data of the Northeastern Channel Islands, CA Region.
Person who carried out this activity:
(650) 329-5460 (voice)
(650) 329-5411 (FAX)
pdartnell@usgs.gov
Not determined.
0.5 meters
0.05 percent of the water depth.
Complete
Point features present.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
Please recognize the U.S. Geological Survey (USGS) as the source of this information. USGS-authored or produced data and information are in the public domain.
(650)329-5460 (voice)
E-1-04-SC data set
These data not intended for navigational purposes.
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user.
Neither the U.S. Government nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights.
Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.
Data format: | ASCII |
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Network links: |
none |
(650) 329-5460 (voice)
(650) 329-5411 (FAX)
pdartnell@usgs.gov