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What does this data set describe?

Title:
Geophysical data of field activity G-2-95-SF in San Francisco Bay, Golden Gate from 05/30/1995 to 06/10/1995
Abstract:
United States Geological Survey, Menlo Park, California. Chief Scientists: Terry Bruns, Paul Carlson, Dennis Mann. Geophysical data (seismic, sidescansonar) of field activity G-2-95-SF in San Francisco Bay, Golden Gate from 05/30/1995 to 06/10/1995, <http://walrus.wr.usgs.gov/infobank/g/g295sf/html/g-2-95-sf.meta.html>.
Supplemental_Information:

Equipment Used -
seismic high resolution CDP
sidescansonar
Publications -
Childs, Jonathan R., Hart, Patrick, Bruns, Terry R., Marlow, Michael S., and
Sliter, Ray, 2000, High-resolution marine seismic reflection data from the
San Francisco Bay area: U.S. Geological Survey Open File Report 00-494:<A
HREF="<http://geopubs.wr.usgs.gov/open-file/of00-494>">geopubs.wr.usgs.gov/open-file/of00-494</A><P>
Bruns, Terry R., Cooper, Alan K., Carlson, Paul R., McCulloch, David S.,
2002, Structure of the Submerged San Andreas and San
Gregorio Fault Zones in the Gulf of the Farallones
off San Francisco, California, from High-Resolution
Seismic-Reflection Data:
U.S. Geological Survey Professional Paper 1658:<a
href="<http://geopubs.wr.usgs.gov/prof-paper/pp1658/ch7.pdf>">
geopubs.wr.usgs.gov/prof-paper/pp1658/ch7.pdf</a><br>

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.).
  1. 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 G-2-95-SF in San Francisco Bay, Golden Gate from 05/30/1995 to 06/10/1995: U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -122.76216
    East_Bounding_Coordinate: -121.68708
    North_Bounding_Coordinate: 38.15448
    South_Bounding_Coordinate: 37.49707

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 30-May-1995
    Ending_Date: 10-Jun-1995
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      Indirect_Spatial_Reference: San Francisco Bay, Golden Gate
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point

    2. 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


  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Bathymetry with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/bath.html>
    Entity_and_Attribute_Overview:
    Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>
    Entity_and_Attribute_Overview:
    Seismic Shots with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/seis.html>

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Terry Bruns (Chief Scientist, USGS Western Region); Paul Carlson (Chief Scientist, USGS Western Region); Dennis Mann (Chief Scientist, USGS Western Region); Ray Sliter (Geophysicist, USGS Western Region); Alan Cooper (Geophysicist, USGS Western Region); Pat Hart (Geophysicist, USGS Western Region); Hal Williams (Mechanical Tech, USGS Western Region); Larry Kooker (Electronic Tech, USGS Western Region); Kevin O'Toole (Mechanical Tech, USGS Western Region); Fred Payne (Electronic Tech, USGS Western Region); Steve Bruns (Watchstander, USGS Western Region)

  3. To whom should users address questions about the data?

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

Why was the data set created?

These data and information are intended for science researchers, students from elementary through college, policy makers, and general public.

How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

    Date: 21-Feb-1996 (process 1 of 2)
    Navigation Data 
    Converted to time format with year at start.

    Person who carried out this activity:

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

    Date: 31-Oct-1998 (process 2 of 2)
    Bathymetry Data 
    10/31/1998  /tiger/g/g295sf/bath/g-2-95-sf.300_062
/bear/programs/edit/automerge/automerge

Input was...
Converted to time format with year at start.

Input was...
Converted to time format with year at start.

time, lat, long, time(sec) to nearest nav fix, data values

    Person who carried out this activity:

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

  3. 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:
    Childs, Jonathan R., Hart, Patrick, Bruns, Terry R., Marlow, Michael S., and Sliter, Ray, 2000, High-resolution marine seismic reflection data from the San Francisco Bay area: U.S. Geological Survey Open File Report 00-494:<A HREF="<http://geopubs.wr.usgs.gov/open-file/of00-494>">geopubs.wr.usgs.gov/open-file/of00-494</A><P> Bruns, Terry R., Cooper, Alan K., Carlson, Paul R., McCulloch, David S., 2002, Structure of the Submerged San Andreas and San Gregorio Fault Zones in the Gulf of the Farallones off San Francisco, California, from High-Resolution Seismic-Reflection Data: U.S. Geological Survey Professional Paper 1658:<a href="<http://geopubs.wr.usgs.gov/prof-paper/pp1658/ch7.pdf>"> geopubs.wr.usgs.gov/prof-paper/pp1658/ch7.pdf</a><br>


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Identified as best available version.

  2. How accurate are the geographic locations?

    Unspecified

  3. How accurate are the heights or depths?

    Unspecified

  4. Where are the gaps in the data? What is missing?

    Start and end date/times of data 

    Navigation Data (g-2-95-sf.062 [GPS])
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
199505310323080    199506011851332
199506011905572    199506012021080
199506012356530    199506022019392
199506022034599    199506032012580
199506032239470    199506040011160
199506040018450    199506040244240
199506040255270    199506041023286
199506041032370    199506041112300
199506041121230    199506041141130
199506041150240    199506051226494
199506052101230    199506052228470
199506052248500    199506052258440
199506052308230    199506060402390
199506060418160    199506060438060
199506060448130    199506060458040
199506060503280    199506061114290
199506061122190    199506061132090
199506061141090    199506061808070
199506061818470    199506061851460
199506061859120    199506061910500
199506062152590    199506062212590
199506062220530    199506062232500
199506062351160    199506070057504
199506070108010    199506072039120
199506072107580    199506091004006
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Bathymetry Data (g-2-95-sf.300_062)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
199505310323080    199505310540120
199505310545200    199505311431173
199505311515288    199506010559275
199506011424010    199506011851332
199506020809222    199506022019392
199506022035110    199506032014320
199506032249510    199506032259010
199506032331350    199506040011160
199506040224340    199506040244240
199506040315280    199506041023286
199506041032370    199506041112300
199506041121230    199506041141130
199506041150240    199506051226494
199506052108560    199506052228470
199506052248500    199506052258440
199506052319060    199506052353035
199506060418160    199506060438060
199506060448130    199506060458040
199506060503280    199506061114290
199506061122190    199506061132090
199506061141090    199506061808370
199506070032510    199506070057504
199506070120474    199506070153114
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Seismic Shots Data (g-2-95-sf.420_062)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
199505310937490    199505311101457
199505311107580    199505311230162
199505311300440    199505311356423
199505311427070    199505311702117
199505311710320    199505311940000
199505311952070    199505312329592
199505312336120    199506010251347
199506010313120    199506011551452
199506020749250    199506021244317
199506021300390    199506021610345
199506021617370    199506021811342
199506021820130    199506021839125
199506021851230    199506022001232
199506022117380    199506030122302
199506030128190    199506030129062
199506030136360    199506030231525
199506030239300    199506030327292
199506030332440    199506030655267
199506030703270    199506030736002
199506030743350    199506031247422
199506031253282    199506031559552
199506041231050    199506042308412
199506042316410    199506050145100
199506050201340    199506051025342
199506071502240    199506071613292
199506071629230    199506071738140
199506071801390    199506072007530
199506080726570    199506081025207
199506081104360    199506081519460
199506082048080    199506090207317
199506090213040    199506090324110
199506090330150    199506090926365
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST

  5. How consistent are the relationships among the observations, including topology?

    Unspecified

How can someone get a copy of the data set?

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.

  1. Who distributes the data set? (Distributor 1 of 1)

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

  2. What's the catalog number I need to order this data set?

    Downloadable Data G-2-95-SF data set <http://walrus.wr.usgs.gov/infobank/g/g295sf/html/g-2-95-sf.meta.html>

  3. 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.

  4. How can I download or order the data?

    • Availability in digital form:

Data format: ASCII Size: 5.4
Network links: <http://walrus.wr.usgs.gov/infobank/g/g295sf/html/g-2-95-sf.nav.html>

Data format: ASCII Size: 5.1
Network links: <http://walrus.wr.usgs.gov/infobank/g/g295sf/html/g-2-95-sf.bath.html>

Data format: ASCII Size: 1.2
Network links: <http://walrus.wr.usgs.gov/infobank/g/g295sf/html/g-2-95-sf.seis.html>

  • Cost to order the data: None

    • Who wrote the metadata?

    Dates:
    Last modified: 31-Mar-2013
    Metadata author:
    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

    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 07:13:33 2013