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What does this data set describe?

Title:
Geophysical data of field activity F-7-90-NC in Gulf of Farallones, Northern California from 07/19/1990 to 08/03/1990
Abstract:
United States Geological Survey, Menlo Park, California. Chief Scientists: Herman Karl, Dave Drake, Bill Schwab. Geophysical data (integratednavigation, rangerange, GPS, RhoRho, bottomtransponder, 3dot5khz, 4dot5khz, 10khz, sidescansonar) of field activity F-7-90-NC in Gulf of Farallones, Northern California from 07/19/1990 to 08/03/1990, <http://walrus.wr.usgs.gov/infobank/f/f790nc/html/f-7-90-nc.meta.html>.
Supplemental_Information:

Equipment Used -
integratednavigation
rangerange Del Norte range
GPS GPS satellite
RhoRho Loran-C Rho-Rho
bottomtransponder acoustic bottom transponder
3dot5khz 3.5 khz bathymetry
4dot5khz 4.5 khz bathymetry
10khz 10 khz bathymetry
sidescansonar
Notes -
EPA Gulf of the Farallones
Publications -
Karl, H.A., Drake, D.E., Schwab, W.C., Edwards, B.D., Lee, H.J., and Chin,
J.L., 1990, Progress Report on Status of Analysis and Interpretation of Data
Collected on Cruises F-7-90-NC and F-8-90-NC Farallon Escarpment, 19 July to 3
August and 5 to 17 August, 1990, U.S. Geological Survey, URL:
<A HREF ="<http://cotuit.er.usgs.gov/Data/1990-018-FA/NL/001/01/90018rpt.pdf>" target ="new"><http://cotuit.er.usgs.gov/Data/1990-018-FA/NL/001/01/90018rpt.pdf> </A>

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/>, 20131029, Geophysical data of field activity F-7-90-NC in Gulf of Farallones, Northern California from 07/19/1990 to 08/03/1990: 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: -123.63171
    East_Bounding_Coordinate: -122.19323
    North_Bounding_Coordinate: 37.83449
    South_Bounding_Coordinate: 37.10913

  3. What does it look like?

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

    Beginning_Date: 19-Jul-1990
    Ending_Date: 03-Aug-1990
    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: Gulf of Farallones, Northern California
      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>


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?

    Herman Karl (Chief Scientist, USGS Western Region); Dave Drake (Chief Scientist, USGS Western Region); Bill Schwab (Chief Scientist, USGS Woods Hole); John Cannan (Captain, J. Marr and Sons); Bill Danforth (Geologist, USGS Woods Hole); Barry Irwin (Navigator, USGS Woods Hole); Tom O'Brien (Geophysicist, USGS Woods Hole); John Chin (Geologist, USGS Western Region); Doug Musser (Navigator, USGS Western Region); Kaye Kinoshita (Navigator, USGS Western Region); Tom Crook (Navigator, WHOI, DSL); Ledabeth Pickthorn (Navigator, USGS Western Region); Warren Scherfius (Photographer, USGS Western Region); Steve Wessels (Photographer, USGS Western Region); Larry Kooker (Electronics, USGS Western Region); Kevin Redman (Unsp. Inv., IDSS); Alan Ota (Unsp. Inv., EPA); Kirk O'Donnell (Unsp. Inv., IDSS); Tom Dettweiler (Unsp. Inv., Meridan); Chester Alysta (Unsp. Inv., IDSS); Dave Wyatt (Unsp. Inv., Meridan); Ski Laniewicz (Unsp. Inv., IDSS); Art Wright (Unsp. Inv., IDSS); Matthew Gilbey (Chief Engineer, J. Marr); Albert Fuller (Chief Mate, J. Marr)

  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: 05-Feb-1996 (process 1 of 2)
    Navigation Data
    Converted to time format with year at start.
    
    10/25/90 MHAMER DRS$DATA:[F790NC.N.FILTER]DAY211_212_FILT1A.050;1
    DUA0:[DRS.FILT]FILTER.EXE;1
    Integrated navigation (SINS) data
    FILTERED USING LOW=0, HIGH=.07, GIBBS=50, #POINTS=23
    REPLACED RAW DATA WITH FILTERED DATA FROM 2100630-2101222, 2101341-2101929,
    2102036-2102157
    
    10/25/90 MHAMER DRS$DATA:[F790NC.N.FILTER]DAY210SHORT_FILT1A.050;1
    DUA0:[DRS.FILT]FILTER.EXE;1
    Integrated navigation (SINS) data
    FILTERED DATA LOW=0, HIGH=.07, GIBBS=50, #POINTS=23
    REPLACED RAW DATA WITH FILTERED DATA ON 2110048-2110603, 2110750-2111323,
    2111458-2111948, 2112051-2120207, 2120338-2120832, 2120955-2121603,
    2121800-2122313
    
    08/30/90 MHAMER DRS$DATA:[F790NC.N]F790NC.051;2
    DUA0:[DRS.PLT.NAVED.EXE]NAVED.EXE;
    Integrated navigation (SINS) data
    WENT THROUGH THE FILE BY DAYS AND CLEANED UP USING HOURLY WINDOWS.
    
    

    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  /lion/f/f790nc/bath/f-7-90-nc.300_052
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    11/30/90 CAROLYN DRS$DATA:[F790NC.B]F790NC.300;1
    DUA0:[DATA.][F790NC.B]REF.EXE;
    Raw depth (bathymetry) data
    from file DRS$DATA:[F790MC.B]F7RAWDEP_OUT.;1
    
    Input was...
    Converted to time format with year at start.
    
    10/25/90 MHAMER DRS$DATA:[F790NC.N.FILTER]DAY211_212_FILT1A.050;1
    DUA0:[DRS.FILT]FILTER.EXE;1
    Integrated navigation (SINS) data
    FILTERED USING LOW=0, HIGH=.07, GIBBS=50, #POINTS=23
    REPLACED RAW DATA WITH FILTERED DATA FROM 2100630-2101222, 2101341-2101929,
    2102036-2102157
    
    10/25/90 MHAMER DRS$DATA:[F790NC.N.FILTER]DAY210SHORT_FILT1A.050;1
    DUA0:[DRS.FILT]FILTER.EXE;1
    Integrated navigation (SINS) data
    FILTERED DATA LOW=0, HIGH=.07, GIBBS=50, #POINTS=23
    REPLACED RAW DATA WITH FILTERED DATA ON 2110048-2110603, 2110750-2111323,
    2111458-2111948, 2112051-2120207, 2120338-2120832, 2120955-2121603,
    2121800-2122313
    
    08/30/90 MHAMER DRS$DATA:[F790NC.N]F790NC.051;2
    DUA0:[DRS.PLT.NAVED.EXE]NAVED.EXE;
    Integrated navigation (SINS) data
    WENT THROUGH THE FILE BY DAYS AND CLEANED UP USING HOURLY WINDOWS.
    
    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:
    Karl, H.A., Drake, D.E., Schwab, W.C., Edwards, B.D., Lee, H.J., and Chin, J.L., 1990, Progress Report on Status of Analysis and Interpretation of Data Collected on Cruises F-7-90-NC and F-8-90-NC Farallon Escarpment, 19 July to 3 August and 5 to 17 August, 1990, U.S. Geological Survey, URL: <A HREF ="<http://cotuit.er.usgs.gov/Data/1990-018-FA/NL/001/01/90018rpt.pdf>" target ="new"><http://cotuit.er.usgs.gov/Data/1990-018-FA/NL/001/01/90018rpt.pdf> </A>



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 (f-7-90-nc.052 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199007191548080    199007191822000
    199007191832150    199007192020040
    199007192045440    199007192159000
    199007192213520    199007192218160
    199007192227100    199007192227100
    199007192232240    199007192232240
    199007192243040    199007200241000
    199007200247280    199007200813000
    199007200819170    199007220221010
    199007220230010    199007220747000
    199007220752040    199007230146030
    199007230151040    199008030700000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (f-7-90-nc.300_052)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199007210600000    199007220242000
    199007220448000    199007220706000
    199007220724000    199007221800000
    199007222118000    199007230024000
    199007230630000    199007231554000
    199007231630000    199007231730000
    199007231748000    199007231830000
    199007231842000    199007240830000
    199007240842000    199007250536000
    199007250548000    199007251500000
    199007251512000    199007260936000
    199007260948000    199007260948000
    199007261000000    199007261330000
    199007261342000    199007261942000
    199007261954000    199007270706000
    199007270718000    199007270718000
    199007270730000    199007272206000
    199007272218000    199007290636000
    199007290712000    199007291136000
    199007291154000    199007291406000
    199007291424000    199007291654000
    199007291712000    199007291800000
    199007291818000    199007291818000
    199007291830000    199007292254000
    199007292336000    199007300836000
    199007300848000    199007301212000
    199007301230000    199007310812000
    199007310836000    199007311048000
    199007311100000    199007311106000
    199007311118000    199007311548000
    199007311618000    199008010712000
    199008010724000    199008011336000
    199008011618000    199008030542000
    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 F-7-90-NC data set <http://walrus.wr.usgs.gov/infobank/f/f790nc/html/f-7-90-nc.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: 1.0
Network links: <http://walrus.wr.usgs.gov/infobank/f/f790nc/html/f-7-90-nc.nav.html>

Data format: ASCII Size: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/f/f790nc/html/f-7-90-nc.bath.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 29-Oct-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 Tue Oct 29 09:55:51 2013