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What does this data set describe?

Title:
Geophysical data of field activity 90001 (F-3-90-GM) in Gulf of Mexico from 03/25/1990 to 04/08/1990
Abstract:
United States Geological Survey, Woods Hole, Massachusetts. Chief Scientists: Bill Schwab, Dave Twichell. Geophysical data (sidescansonar, 3dot5khz, 4dot5khz, gravity, bottomtransponder, GPS, integratednavigation, RhoRho, tempsalinometer, expendablebatthermograph) of field activity 90001 (F-3-90-GM) in Gulf of Mexico from 03/25/1990 to 04/08/1990, <http://walrus.wr.usgs.gov/infobank/f/f390gm/html/f-3-90-gm.meta.html>.
Supplemental_Information:

Equipment Used -
sidescansonar Seamarc I side scan sonar
3dot5khz 3.5 khz bathymetry
4dot5khz 4.5 khz bathymetry
gravity
bottomtransponder acoustic bottom transponder
GPS GPS satellite
integratednavigation
RhoRho Loran-C Rho-Rho
tempsalinometer temperature/salinity/conductance gauges
expendablebatthermograph
Notes -
U. S. geological survey - atlantic marine geology
Publications -
F390GM Cruise Report exists at Woods Hole

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 90001 (F-3-90-GM) in Gulf of Mexico from 03/25/1990 to 04/08/1990: 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: -86.65010
    East_Bounding_Coordinate: -82.44050
    North_Bounding_Coordinate: 27.95590
    South_Bounding_Coordinate: 26.12340

  3. What does it look like?

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

    Beginning_Date: 25-Mar-1990
    Ending_Date: 08-Apr-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 Mexico
      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:
    Gravity with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/grav.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?

    Bill Schwab (Chief Scientist, USGS Woods Hole); Dave Twichell (Chief Scientist, USGS Woods Hole); John Cannon (Captain, J. Marr And Sons); Bill Danforth (Unspecified, USGS Woods Hole); Barry Irwin (Unspecified, USGS Woods Hole); Dave Lubinski (Unspecified, USGS Woods Hole); Tom O'Brien (Unspecified, USGS Woods Hole); Dave Mason (Unspecified, USGS Woods Hole); N. Kenyon (Unspecified, IOS); T. Crook (Unspecified, WHOI-DSL); T. Dettweiler (Unspecified, US Navy); M. Williamson (Unspecified, IDSS); K. Redman (Unspecified, IDSS); N. Lesnikowski (Unspecified, IDSS); J. McDowell (Unspecified, IDSS); Lisa Bader (Unspecified, USGS Western Region); Michael Hamer (Unspecified, USGS Western Region); Larry Kooker (Unspecified, 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: 05-Feb-1996 (process 1 of 2)
    Navigation Data
    Converted to time format with year at start.
    
    04/23/90 EDM DRS$DATA:[F390GM.N.WORK]F390GM.081;1
    DUA0:[DRS.PLT.NAVED]NAVED.EXE;13
    Farnella ABC data
    
    

    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)
    Gravity Data
    10/31/1998  /lion/f/f390gm/grav/f-3-90-gm.100_081
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    05/16/90 EDM DRS$DATA:[F390GM.G]FILE1.100;1
    DUA0:[DATA.][F390GM.G]REFMT.EXE;
    Raw gravity data from digital meter
    
    Input was...
    Converted to time format with year at start.
    
    04/23/90 EDM DRS$DATA:[F390GM.N.WORK]F390GM.081;1
    DUA0:[DRS.PLT.NAVED]NAVED.EXE;13
    Farnella ABC data
    
    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: F390GM Cruise Report exists at Woods Hole


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-3-90-gm.081)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199003251906000    199003260442000
    199003260448000    199003260918000
    199003260924000    199003270734000
    199003270826000    199003270912000
    199003270928000    199003271008000
    199003271028000    199003271522000
    199003271528000    199003271720000
    199003271754000    199003271944000
    199003271954000    199003272030000
    199003272104000    199003280658000
    199003280850000    199003280954000
    199003281016000    199003281342000
    199003281352000    199003290200000
    199003290210000    199003290214000
    199003290224000    199003290238000
    199003290248000    199003290450000
    199003290500000    199003290624000
    199003290638000    199004031628000
    199004031636000    199004052000000
    199004052018000    199004080158000
    199004080204000    199004081034000
    199004081048000    199004081100000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (f-3-90-gm.100_081)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199003251914240    199003251935540
    199003251953000    199003252004540
    199003252011180    199003252032240
    199003252046000    199003252110540
    199003252116180    199003252143540
    199003252159000    199003260057240
    199003260102480    199003260124540
    199003260139300    199003260430540
    199003260448300    199003260849240
    199003260854480    199003260904240
    199003260925300    199003260931240
    199003260942300    199003270057240
    199003270112000    199003270723540
    199003270827000    199003270855540
    199003270928300    199003270951540
    199003271028000    199003271709540
    199003271758240    199003271832540
    199003271845000    199003271918240
    199003271925300    199003271932540
    199003271955000    199003272029240
    199003272058000    199003280535240
    199003280544300    199003280642540
    199003280852000    199003280900240
    199003280920000    199003280941240
    199003281016300    199003281031240
    199003281043300    199003281331540
    199003281350300    199003290218240
    199003290249000    199004041738540
    199004041749300    199004041914540
    199004041928300    199004051952540
    199004052003000    199004080253240
    199004080258480    199004081100000
    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 90001 (F-3-90-GM) data set <http://walrus.wr.usgs.gov/infobank/f/f390gm/html/f-3-90-gm.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: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/f/f390gm/html/f-3-90-gm.nav.html>

Data format: ASCII Size: 1.1
Network links: <http://walrus.wr.usgs.gov/infobank/f/f390gm/html/f-3-90-gm.grav.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 09:55:44 2013