- Title:
-
Geophysical data of field activity F-1-04-TB in Tomales Bay,
CA from 11/14/2004 to 11/19/2004
- Abstract:
-
United States Geological Survey, Menlo Park, California.
Chief Scientists: John Chin, USGS Menlo Park, Roberto Anima,
USGS Menlo Park. Geophysical data (234khz, YoNav) of field
activity F-1-04-TB in Tomales Bay, CA from 11/14/2004 to
11/19/2004,
<http://walrus.wr.usgs.gov/infobank/f/f104tb/html/f-1-04-tb.meta.html>.
- Supplemental_Information:
-
Equipment Used -
234khz
YoNav
Notes -
Interferometric swath bathymetry
files exist on /imgarc2/F-1-04-TB/
[<A HREF="<http://woodshole.er.usgs.gov/operations/sfmapping/swath.htm>" TARGET="dynamic"><http://woodshole.er.usgs.gov/operations/sfmapping/swath.htm>],
brand SEA Model SWATHplus-M, media digital, code SUBX, 234 khz.
Yonav GPS nav, media digital, comment WAAS DGPS correction.
<p>
The Tomales Bay Watershed Council
has voiced a need to begin looking
at the environmental impacts of human input to the watersheds
and feels it important to establish an ecological database
that can be used to make comparisons in the future.
Surveying would create a framework and this database.
<p>
Tomales Bay marks the trace of the San Andreas Fault and
is the culmination point of tributaries
from the Inverness Ridge to the west and the watershed to the east.
Geologic and anthropogenic changes are occuring
in the Bays and the impact on habitats is unknown.
In response to a request from the National Park Service, and
the Tomales Bay Watershed Council
[<A HREF="<http://www.tomalesbaywatershed.org/>" TARGET="dynamic"><http://www.tomalesbaywatershed.org/>]
to determine the overall morphology of the floor of Tomales Bay,
the Coastal and Marine Geology Team proposes to map the bathymetry and
produce a detailed geologic and habitat map of Tomales and Bodega Bays.
This task is necessary to establish a baseline
of the bay floor morphology to compare future geologic and
anthropogenic changes that might occur due to changes
in land use or development in the surrounding watershed.
This task will also be of importance
in determining the possible pathways of pollutants entering the bays
from the surrounding watersheds.
Publications -
Anima, R.J., Chin, J.L., Finlayson, D.P., McGann, M.L., and Wong,
F.L., 2008, Interferometric sidescan bathymetry, sediment and foraminiferal analyses: a new look at Tomales Bay, California, 2008, United States Geological Surv ey Open File Report 2008-1237, Available on line at:
<a href = "<http://pubs.usgs.gov/of/2008/1237/>" target = "OF"><http://pubs.usgs.gov/of/2008/1237/>
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 F-1-04-TB in Tomales Bay, CA from 11/14/2004 to 11/19/2004: 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: -122.93189
- East_Bounding_Coordinate: -122.86112
- North_Bounding_Coordinate: 38.19268
- South_Bounding_Coordinate: 38.10784
- What does it look like?
- Does the data set describe conditions during a particular time period?
- Beginning_Date: 14-Nov-2004
- Ending_Date: 19-Nov-2004
- 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: Tomales Bay, CA
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 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.257.
- 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?
John Chin (USGS, Co Chief Scientist);
Roberto Anima (USGS, Co Chief Scientist);
Andy Stevenson (USGS, Information Specialist);
Eleyne Phillips (FACS Coordinator);
Mike Boyle (USGS, Electronic Technician);
Larry Kooker (USGS, Electronic Technician);
Gerry O'Brien (USGS, Small boat handler)
- 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: 30-Jun-2005 (process 1 of 1)
-
Navigation Data
Unknown
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:
- Other_Citation_Details:
-
Anima, R.J., Chin, J.L., Finlayson, D.P., McGann, M.L., and Wong,
F.L., 2008, Interferometric sidescan bathymetry, sediment and foraminiferal analyses: a new look at Tomales Bay, California, 2008, United States Geological Surv ey Open File Report 2008-1237, Available on line at:
<a href = "<http://pubs.usgs.gov/of/2008/1237/>" target = "OF"><http://pubs.usgs.gov/of/2008/1237/>
- 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 (f-1-04-tb.061 [GPS])
YYYYMMDDHHMMSST YYYYMMDDHHMMSST
200411142216403 200411150126504
200411150137504 200411150201100
200411151615501 200411160033301
200411161559200 200411162120004
200411162125504 200411170027504
200411171550003 200411171623304
200411171634001 200411171638001
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 F-1-04-TB data set <http://walrus.wr.usgs.gov/infobank/f/f104tb/html/f-1-04-tb.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 07:12:31 2013
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