United States Geological Survey (USGS),
2005
XYZ format of the 2004 Multibeam Bathymetry Data in the
Northeastern Channel Islands Region, Southern California
XYZ
http://pubs.wr.usgs.gov/of/2005/1153/ci-data.html
http://pubs.wr.usgs.gov/of/2005/1153/ci-data.html/bathyxyz.zip
Peter Dartnell
Guy Cochrane
Mary Elaine Dunaway
2005
Multibeam Bathymetry and Backscatter Data:
Northeastern Channel Islands Region, Southern
California
1.0
Open-File Report
2005-1153
Western Coastal and Marine
Geology, Menlo Park, CA
U.S. Geological Survey, Coastal and Marine
Geology Program
http://pubs.wr.usgs.gov/of/2005/1153/ci-index.html
XYZ ASCII format data generated from the 2004
multibeam sonar survey of the Northeastern Channel
Islands, CA Region. The data include high-resolution bathymetry.
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 bathymetry data of the
Northeastern Channel Islands, CA Region.
Information for USGS Coastal and Marine Geology related
activities are online at
< http://walrus.wr.usgs.gov/infobank/e/e104sc/html/e-1-04-sc.meta.html>
20040806
20040815
ground condition
As needed
-119.72
-119.03
34.33
33.88
None
Marine Geology
Multibeam
Bathymetry
Water Depth
Ocean Floor Topography
elevation
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
ISO 19115 Topic Category
oceans and estuaries
imageryBaseMapsEarthCover
None
Santa Barbara Channel
Channel Islands
CA
Southern California
USA
None
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.
Peter Dartnell
United States Geological Survey (USGS)
Coastal and Marine Geology (CMG)
Physical Scientist
mailing and physical address
USGS, MailStop 999, 345 Middlefield Road
Menlo Park
CA
94025-3561
USA
(650) 329-5460
(650) 329-5411
pdartnell@usgs.gov
Not determined.
Point features present.
Complete
0.5 meters
0.05 percent of the water depth. Depths corrected to
mean lower low water datum.
The multibeam bathymetry and acoustic backscatter data were collected
along a continuous swath perpendicular to the direction of the ship using a
Kongsberg Simrad EM1002 multibeam sonar system. The data are cleaned
of bad navigation and depth readings and corrected for tides to mean
lower low water datum using a predictive tide model. The depth readings are
gridded into a common grid. The gridded data are converted to ArcInfo GRID
format using ArcInfo's ASCIIGRID command. The GRID was converted to
an XYZ ASCII file by using the GRIDPOINT, ADDXY, and Tables' UNLOAD commands.
20041130
Peter Dartnell
United States Geological Survey (USGS)
Coastal and Marine Geology (CMG)
Physical Scientist
mailing and physical address
USGS, MailStop 999, 345 Middlefield Road
Menlo Park
CA
94025-3561
USA
(650) 329-5460
(650) 329-5411
pdartnell@usgs.gov
Point
Point
0.00015
0.00015
Decimal degrees
WGS84
WGS84
6378137.00 meters
0.003352811
Example of Bathymetry XYZ ASCII file
> Longitude, Latitude, Depth
> (decimal degrees, decimal degrees, meters)
>-119.54763,33.72052,-132.661
>-119.54747,33.72052,-132.673
>-119.54731,33.72052,-132.684
>-119.54715,33.72052,-132.684
>-119.54699,33.72052,-132.684
>-119.54683,33.72052,-132.727
>-119.54668,33.72052,-132.764
>-119.54652,33.72052,-132.756
>-119.54636,33.72052,-132.739
none
United States Geological Survey (USGS)
Information Services
mailing and physical address
345 Middlefield Rd., MS-999
Menlo Park
CA
94025
USA
(650)329-5460
E-1-04-SC data sets
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.
ASCII
none
None
20050130
Peter Dartnell
United States Geological Survey (USGS)
Coastal and Marine Geology (CMG)
Physical Scientist
mailing and physical address
USGS, MailStop 999, 345 Middlefield Road
Menlo Park
CA
94025-3561
USA
(650) 329-5460
(650) 329-5411
pdartnell@usgs.gov
Content Standard for Digital Geospatial Metadata
("CSDGM version 2")
FGDC-STD-001-1998
universal time