Peter Dartnell
Guy Cochrane
Mary Elaine Dunaway
2005
XYZ format of the 2004 Multibeam Backscatter Data in the
Northeastern Channel Islands Region, Southern California [mosxyz.zip]
XYZ
Pacific Coastal and Marine Science Center, Santa Cruz and Menlo Park, CA
U.S. Geological Survey, Coastal and Marine Geology Program
http://pubs.usgs.gov/of/2005/1153/ci-data.html
http://pubs.usgs.gov/of/2005/1153/data/mosxyz.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
Reston, VA
U.S. Geological Survey
http://pubs.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 acoustic,
corrected backscatter.
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.
Information for USGS Coastal and Marine Geology data collection
field activity E-1-04-SC are online at
<http://walrus.wr.usgs.gov/infobank/e/e104sc/html/e-1-04-sc.meta.html>.
Information for Lamont-Doherty Earth Observatory
field activity EW0407 are online at
<http://www.marine-geo.org/link/entry.php?id=EW0407>.
20040806
20040815
ground condition
As needed
-119.72
-119.03
34.33
33.88
None
Multibeam
Backscatter
Acoustic
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
ISO 19115 Topic Category
oceans
imageryBaseMapsEarthCover
USGS Thesaurus
marine geology
multibeam sonar
sonar methods
acoustic methods
GCMD SCIENCE PARAMETERS
EARTH REMOTE SENSING INSTRUMENTS > ACTIVE REMOTE SENSING > PROFILERS/SOUNDERS > ACOUSTIC SOUNDERS
None
Southern California
Geographic Names Information System (GNIS)
Santa Barbara Channel
Channel Islands
California
GCMD
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA
OCEAN > PACIFIC OCEAN
None
This information is not intended for navigational purposes.
Read and fully comprehend the metadata prior to data use. Uses of these
data should not violate the spatial resolution of the data. Where
these data are used in combination with other data of different resolution,
the resolution of the combined output will be limited by the lowest
resolution of all the data.
Acknowledge the U.S. Geological Survey in products derived from these data.
Share data products developed using these data with the U.S. Geological
Survey.
This database has been approved for release and publication by the Director
of the USGS. Although this database has been subjected to rigorous review
and is substantially complete, the USGS reserves the right to revise the
data pursuant to further analysis and review. Furthermore, it is released
on condition that neither the USGS nor the United States Government may be
held liable for any damages resulting from its authorized or unauthorized
use.
Although this Federal Geographic Data Committee-compliant metadata file is
intended to document these data in nonproprietary form, as well as in ArcInfo
format, this metadata file may include some ArcInfo-specific terminology.
Peter Dartnell
U.S. Geological Survey, Coastal and Marine Geology Program
Physical Scientist
mailing and physical address
USGS, 400 Natural Bridges Drive
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
(831) 427-4748
pdartnell@usgs.gov
Not determined.
Point features present.
Complete
0.5 meters
0.05 percent of the water depth.
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
U.S. Geological Survey, Coastal and Marine Geology Program
Physical Scientist
mailing and physical address
USGS, 400 Natural Bridges Drive
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
(831) 427-4748
pdartnell@usgs.gov
Point
Point
0.00015
0.00015
Decimal degrees
WGS84
WGS84
6378137.00 meters
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
none
U.S. Geological Survey, Coastal and Marine Geology Program
Peter Dartnell
mailing and physical address
USGS, 400 Natural Bridges Drive
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
USGS Open-File Report 2005-1153 Acoustic Backscatter Data XYZ [mosxyz.zip]
This information is not intended for navigational purposes.
This database has been approved for release and publication by the Director
of the USGS. Although this database has been subjected to rigorous review
and is substantially complete, the USGS reserves the right to revise the
data pursuant to further analysis and review. Furthermore, it is released
on condition that neither the USGS nor the United States Government may be
held liable for any damages resulting from its authorized or unauthorized
use.
Reference herein to any specific commercial product, process, or service
by trade name, trademark, manufacturer, or otherwise does not constitute
or imply its endorsement, recommendation, or favoring by the United States
Government or any agency thereof.
ASCII
24.0
http://pubs.usgs.gov/of/2005/1153/data/mosxyz.zip
None
20140912
Peter Dartnell
United States Geological Survey (USGS)
Coastal and Marine Geology (CMG)
Physical Scientist
mailing and physical address
USGS, 400 Natural Bridges Drive
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
(831) 427-4748
pdartnell@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
universal time