- Title:
-
Geophysical data of field activity J-4-81-NC in Northern
California from 07/06/1981 to 07/10/1981
- Abstract:
-
Chief Scientist: Gary Hill. Geophysical data (12khz,
uniboom, minisparker, sidescansonar, underwatertelevision,
uniboomminisparker) of field activity J-4-81-NC in Northern
California from 07/06/1981 to 07/10/1981,
<http://walrus.wr.usgs.gov/infobank/j/j481nc/html/j-4-81-nc.meta.html>.
- Supplemental_Information:
-
Equipment Used -
12khz bathymetry
uniboom
minisparker
sidescansonar
underwatertelevision
uniboomminisparker
Similar information is available for thousands
of other USGS/CMG-related Activities.
If known, available are Activity-specific
navigation, gravity, magnetics, bathymetry,
seismic, and sampling data; track maps; and
equipment information; as well as summary
overviews, crew lists, and information
about analog materials.
If available, access to physical samples is
described in the "WR CMG Sample Distribution
Policy" at:
<http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
Primary access to the USGS/CMG Information
Bank's digital data, analog data, and
metadata is provided through...
<http://walrus.wr.usgs.gov/infobank/>
This page accomodates a variety of search
approaches (e.g., by platform, by region,
by scientist, by equipment type, etc.).
- How should this data set be cited?
U.S. Geological Survey (USGS) <http://www.usgs.gov/>, Coastal and Marine Geology Program (CMGP) <http://marine.usgs.gov/>, 20130331, Geophysical data of field activity J-4-81-NC in Northern California from 07/06/1981 to 07/10/1981: U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.
Online Links:
- What geographic area does the data set cover?
- West_Bounding_Coordinate: -121.91933
- East_Bounding_Coordinate: -121.79047
- North_Bounding_Coordinate: 36.80867
- South_Bounding_Coordinate: 36.66377
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 06-Jul-1981
- Ending_Date: 10-Jul-1981
- Currentness_Reference: ground condition
- What is the general form of this data set?
- How does the data set represent geographic features?
- How are geographic features stored in the data set?
- Indirect_Spatial_Reference: Northern California
This is a Point data set.
It contains the following vector data types (SDTS terminology):
- What coordinate system is used to represent geographic features?
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude.
Latitudes are given to the nearest 0.00001.
Longitudes are given to the nearest 0.00001.
Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.4.
The flattening of the ellipsoid used is 1/294.98.
- Vertical_Coordinate_System_Definition:
-
- Depth_System_Definition:
-
- Depth_Datum_Name: Local surface
- Depth_Resolution: 0.1
- Depth_Distance_Units: meters
- Depth_Encoding_Method: Attribute values
- How does the data set describe geographic features?
- Entity_and_Attribute_Overview:
-
Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>
- Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
- Who also contributed to the data set?
Bill Clique (Unspecified Investigator, USGS Western Region);
Bruce Richmond (Geologist, USGS Western Region);
Gary Hill (Chief Scientist, USGS Western Region);
John Chin (Geologist, USGS Western Region);
Mike Boyle (Electronics Technician, USGS Western Region);
Ray August (Watchstander, USGS Western Region);
Rick Viall (Electronics Technician, USGS Western Region);
Steve Wolf (Ship Captain, USGS Western Region)
- To whom should users address questions about the data?
These data and information are intended for science
researchers, students from elementary through
college, policy makers, and general public.
- From what previous works were the data drawn?
- How were the data generated, processed, and modified?
- Date: 06-Dec-1995 (process 1 of 1)
-
Navigation Data
Converted to time format with year at start.
11/20/85 EDM DISK$USERDISK:[EDM.TEMP.J481NC]J481NC.650;
DRB0:[DRS.REFMT]REFORMAT.EXE;4
Input was...
11/18/85 EDM USR$DISK:[CLINT.NAV1.J481NC]J481NC.050;
DRA1:[EDM]REFORMAT.EXE;
Person who carried out this activity:
- What similar or related data should the user be aware of?
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Unknown, USGS/CMG Information Bank <http://walrus.wr.usgs.gov/infobank/>: U.S. Geological Survey (USGS) <http://www.usgs.gov> Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.
Online Links:
- How well have the observations been checked?
Identified as best available version.
- How accurate are the geographic locations?
Unspecified
- How accurate are the heights or depths?
Unspecified
- Where are the gaps in the data? What is missing?
Start and end date/times of data
Navigation Data (j-4-81-nc.650)
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
198107060746220 198107060856040
198107060901230 198107060959530
198107061005120 198107061139390
198107061155260 198107061227260
198107061233520 198107061234220
198107071255280 198107071301580
198107071329280 198107071341580
198107071351250 198107071401550
198107080636200 198107081035280
198107081042400 198107081108290
198107081115520 198107081136520
198107081144510 198107081513050
198107081518200 198107081556400
198107090628320 198107090855070
198107090934090 198107091030140
198107091042020 198107091504080
198107091514190 198107091558470
198107100709000 198107100924050
198107100929420 198107101005140
198107101213090 198107101300070
198107101316570 198107101425100
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
- How consistent are the relationships among the observations, including topology?
Unspecified
Are there legal restrictions on access or use of the data?
- Access_Constraints:
-
Physical materials are under controlled on-site access.
If available, access to physical samples is described
in the "WR CMG Sample Distribution Policy" at:
<http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
- Use_Constraints:
-
Please recognize the U.S. Geological Survey (USGS) as
the source of this information.
Physical materials are under controlled on-site access.
Some USGS information accessed through this means
may be preliminary in nature and presented without
the approval of the Director of the USGS. This
information is provided with the understanding
that it is not guaranteed to be correct or complete
and conclusions drawn from such information are
the responsibility of the user.
This information is not intended for navigational
purposes.
Any use of trade, firm, or product names is for
descriptive purposes only and does not imply
endorsement by the U.S. Government.
- Who distributes the data set? (Distributor 1 of 1)
- What's the catalog number I need to order this data set?
Downloadable Data J-4-81-NC data set <http://walrus.wr.usgs.gov/infobank/j/j481nc/html/j-4-81-nc.meta.html>
- What legal disclaimers am I supposed to read?
Please recognize the U.S. Geological Survey (USGS) as
the source of this information.
Physical materials are under controlled on-site access.
Some USGS information accessed through this means
may be preliminary in nature and presented without
the approval of the Director of the USGS. This
information is provided with the understanding
that it is not guaranteed to be correct or complete
and conclusions drawn from such information are
the responsibility of the user.
This information is not intended for navigational
purposes.
Any use of trade, firm, or product names is for
descriptive purposes only and does not imply
endorsement by the U.S. Government.
- How can I download or order the data?
- Availability in digital form:
- Cost to order the data: None
- Dates:
- Last modified: 31-Mar-2013
- Metadata author:
-
- Metadata standard:
- FGDC Content Standards for Digital Geospatial Metadata <http://www.fgdc.gov/> (FGDC-STD-001-1998 <http://www.its.nbs.gov/nbs/meta/meta.html>)
Generated by mp version 2.9.13 on Sun Mar 31 07:18:29 2013
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