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What does this data set describe?

Title:
Geophysical data of field activity 90007 (F-5-90-GM) in Cayman Trough, Gulf of Mexico from 05/20/1990 to 05/29/1990
Abstract:
United States Geological Survey, Woods Hole, Massachusetts. Chief Scientist: Dave Folger. Geophysical data (integratednavigation, GPS, LoranC, RhoRho, 3dot5khz, gravity, magnetics) of field activity 90007 (F-5-90-GM) in Cayman Trough, Gulf of Mexico from 05/20/1990 to 05/29/1990, <http://walrus.wr.usgs.gov/infobank/f/f590gm/html/f-5-90-gm.meta.html>.
Supplemental_Information:

Equipment Used -
integratednavigation
GPS GPS satellite
LoranC
RhoRho Loran-C Rho-Rho
3dot5khz 3.5 khz bathymetry
gravity
magnetics magnetometer
Publications -
F590GM 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 90007 (F-5-90-GM) in Cayman Trough, Gulf of Mexico from 05/20/1990 to 05/29/1990: 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: -85.36644
    East_Bounding_Coordinate: -79.76241
    North_Bounding_Coordinate: 27.95519
    South_Bounding_Coordinate: 9.45316

  3. What does it look like?

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

    Beginning_Date: 20-May-1990
    Ending_Date: 29-May-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: Cayman Trough, 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:
    Magnetics with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/mag.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?

    Dave Folger (Chief Scientist, USGS Woods Hole); John Cannan (Captain, J. Marr and Sons); Barry Irwin (Watchstander, USGS Woods Hole); Cathy Delorey (Watchstander, USGS Woods Hole); Michael Hamer (Navigator, 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: 17-Dec-1999 (process 1 of 3)
    Navigation Data
    Converted to time format with year at start.
    
    08/02/90 MHAMER DUA0:[DATA.MHWORK]DAY140.050;3
    DUA0:[DRS.PLT.NAVED]NAVED.EXE;13
    Integrated navigation (SINS) data
    
    Replaced track nav with gps nav from 1461900020 - 1462115240.
    Replaced track nav with gps nav from 1481339040 - 1481429040.
    
    
    

    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 3)
    Gravity Data
    10/31/1998  /lion/f/f590gm/grav/f-5-90-gm.101_051
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    08/20/90 HARRY DRS$DATA:[F590GM.G]F590GM.101;1
    DUA0:[DRS.GRV]VALIDGRAV.EXE;
    Raw gravity data from digital meter
    
    Input was...
    Converted to time format with year at start.
    
    08/02/90 MHAMER DUA0:[DATA.MHWORK]DAY140.050;3
    DUA0:[DRS.PLT.NAVED]NAVED.EXE;13
    Integrated navigation (SINS) data
    
    Replaced track nav with gps nav from 1461900020 - 1462115240.
    Replaced track nav with gps nav from 1481339040 - 1481429040.
    
    
    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>

    Date: 20-Jun-2012 (process 3 of 3)
    Magnetics Data
    06/20/2012 carolyn f-5-90-gm.221_051
    
    Reprocessed using subroutines from Susan Macmillan's
    IGRF SYNTHESIS PROGRAM <http://www.ngdc.noaa.gov/IAGA/vmod/igrf11.f>
    with IGRF-11 coeffiecients integrated into the source code.
    /infobank/programs/mag/magred1111/magred1111.for
    Using geodetic coordinate system (Earth shape approximated by spheriod)
    with altitude 0.0 km (for sea level).
    
    Input was...
    11/06/2008 carolyn f-5-90-gm.220_051
    /infobank/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GM.220;1
    ISDMNL$DUA12:[PMG.MAG]MAGRED.EXE;5
    Edited magnetics data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GMFILT.202;1
    ISDMNL$DUA12:[PMG.EDIT]SKIPNSAVE.EXE;1
    Raw magnetics data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GMTT.130;1
    ISDMNL$DUA12:[PMG.FILT]TIPNTAIL.EXE;
    Gravity SKIPNSAVE control data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GM20SEC.202;1
    ISDMNL$DUA12:[PMG.EDIT]MERGEIT.EXE;
    Raw magnetics data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GMTIMES.202;1
    ISDMNL$DUA12:[PMG.DSMPL]METAMUCIL.EXE;
    Raw magnetics data
    
    01/29/91 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GM.202;1
    MARINE:[PMG.PLT]GRAPHED.EXE;
    Raw magnetics data
    edited out initial bad section and last 9999 val
    s/  41/ 419/ & s/  42/ 420/ for 145/0246-145/0311 section
    
    08/21/90 HARRY DRS$DATA:[F590GM.M]F590GM.201;1
    DUA0:[DATA.][F590GM.M]ZEROMAG.EXE;
    Raw magnetics data
    
    01/29/91 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GM.202;1
    MARINE:[PMG.PLT]GRAPHED.EXE;
    Raw magnetics data
    edited out initial bad section and last 9999 val
    s/  41/ 419/ & s/  42/ 420/ for 145/0246-145/0311 section
    
    08/21/90 HARRY DRS$DATA:[F590GM.M]F590GM.201;1
    DUA0:[DATA.][F590GM.M]ZEROMAG.EXE;
    Raw magnetics data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GMFT.202;1
    ISDMNL$DUA12:[PMG.FILT]FILTER.EXE;1
    Raw magnetics data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GMTT.202;1
    ISDMNL$DUA12:[PMG.FILT]TIPNTAIL.EXE;
    Raw magnetics data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GM20SEC.202;1
    ISDMNL$DUA12:[PMG.EDIT]MERGEIT.EXE;
    Raw magnetics data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GMTIMES.202;1
    ISDMNL$DUA12:[PMG.DSMPL]METAMUCIL.EXE;
    Raw magnetics data
    
    01/29/91 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GM.202;1
    MARINE:[PMG.PLT]GRAPHED.EXE;
    Raw magnetics data
    edited out initial bad section and last 9999 val
    s/  41/ 419/ & s/  42/ 420/ for 145/0246-145/0311 section
    
    08/21/90 HARRY DRS$DATA:[F590GM.M]F590GM.201;1
    DUA0:[DATA.][F590GM.M]ZEROMAG.EXE;
    Raw magnetics data
    
    01/29/91 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GM.202;1
    MARINE:[PMG.PLT]GRAPHED.EXE;
    Raw magnetics data
    edited out initial bad section and last 9999 val
    s/  41/ 419/ & s/  42/ 420/ for 145/0246-145/0311 section
    
    08/21/90 HARRY DRS$DATA:[F590GM.M]F590GM.201;1
    DUA0:[DATA.][F590GM.M]ZEROMAG.EXE;
    Raw magnetics data
    
    01/30/92 CAROLYN MARINE:[DATA.CRUISE.F590GM.WORK.M]F590GM.070;1
    ISDMNL$DUA12:[PMG.NAV]EOTCSSP.EXE;1
    Eotvos/course/speed/distance data
    
    08/02/90 MHAMER DUA0:[DATA.MHWORK]DAY140.050;3
    DUA0:[DRS.PLT.NAVED]NAVED.EXE;13
    Integrated navigation (SINS) data
    
    Replaced track nav with gps nav from 1461900020 - 1462115240.
    Replaced track nav with gps nav from 1481339040 - 1481429040.
    
    
    Converted to time format with year at start.
    
    08/02/90 MHAMER DUA0:[DATA.MHWORK]DAY140.050;3
    DUA0:[DRS.PLT.NAVED]NAVED.EXE;13
    Integrated navigation (SINS) data
    
    Replaced track nav with gps nav from 1461900020 - 1462115240.
    Replaced track nav with gps nav from 1481339040 - 1481429040.
    
    
    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: F590GM 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-5-90-gm.051 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199005200426420    199005200428040
    199005201221360    199005201221360
    199005201347040    199005201353040
    199005201359140    199005211332040
    199005211340020    199005221543330
    199005221554480    199005221655010
    199005221701140    199005221707000
    199005221712350    199005231158040
    199005231205130    199005240649040
    199005240656140    199005241939020
    199005241945020    199005242046020
    199005242051140    199005270820040
    199005270852340    199005281340050
    199005281348010    199005281354020
    199005281402010    199005281440010
    199005281450000    199005281504010
    199005281510020    199005281607020
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (f-5-90-gm.101_051)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199005201509000    199005202059000
    199005202110400    199005202121500
    199005202132100    199005230109200
    199005230117000    199005240936400
    199005240944000    199005241916500
    199005241924400    199005242141000
    199005242151500    199005250615400
    199005250632200    199005252118000
    199005252129200    199005261533200
    199005261544000    199005281607000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (f-5-90-gm.221_051)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199005202034200    199005210705400
    199005230051000    199005260500000
    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 90007 (F-5-90-GM) data set <http://walrus.wr.usgs.gov/infobank/f/f590gm/html/f-5-90-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: 0.6
Network links: <http://walrus.wr.usgs.gov/infobank/f/f590gm/html/f-5-90-gm.nav.html>

Data format: ASCII Size: 7.6
Network links: <http://walrus.wr.usgs.gov/infobank/f/f590gm/html/f-5-90-gm.grav.html>

Data format: ASCII Size: 0.9
Network links: <http://walrus.wr.usgs.gov/infobank/f/f590gm/html/f-5-90-gm.mag.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 09:55:48 2013