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What does this data set describe?

Title:
Geophysical data of field activity L-3-83-WF in Juan de Fuca from 08/19/1983 to 09/01/1983
Abstract:
Chief Scientist: Bill Normark. Geophysical data (3dot5khz, 12khz, airgun, pinger, gravity, courserecorder, integratednavigation, underwatercamera, underwatertelevision) of field activity L-3-83-WF in Juan de Fuca from 08/19/1983 to 09/01/1983, <http://walrus.wr.usgs.gov/infobank/l/l383wf/html/l-3-83-wf.meta.html>.
Supplemental_Information:

Equipment Used -
3dot5khz 3.5 khz bathymetry
12khz 12 khz bathymetry
airgun single-channel airgun
pinger
gravity
courserecorder
integratednavigation
underwatercamera
underwatertelevision
Publications -
Lichtman, G.S., Normark, William R., Delaney, J.R., Morton, J.L., Johnson, H.P., and Karsten, J.L.,
1983, Photogeology and evolution of the Juan de Fuca Ridge: U.S. Geological Survey Open-File
Report 83-0464, 15 p.<BR>
<HR>
Lichtman, Grant S., Normark, William R., and Spiess, F.N., 1984, Photogeologic study of a
segment of the East Pacific Rise axis near 21 degrees N latitude: Geological Society of America
Bulletin, v. 95, no. 6, p. 743-752.<BR>
<HR>
Normark, William R., 1982, Geologic setting of polymetallic sulfide deposits on East Pacific
Rise at 21 degrees N and Juan de Fuca Ridge near 45 degrees N, in Wilson, Stuart T., ed.,
Transactions of the Third Circum-Pacific energy and mineral resources conference: Transactions
of the Circum-Pacific Energy and Mineral Resources Conference, v. 3, p. 366.<BR>
<HR>
Normark, William R., Morton, Janet L., and Koski, Randolph A., 1984, The Juan de Fuca Ridge
metallogenesis program, in Clarke, Samuel H., ed., U.S. Geological Survey highlights in
marine research: U.S. Geological Survey Circular 0938, p. 49-56.<BR>
<HR>
Normark, W.R., Morton, Janet L., Holcomb, R.T., Koski, Randolph A., and Ross, S.L., 1984,
A continuous linear depresion in the axial valley of the southern Juan de Fuca Ridge; tectonic
or volcanic origin?, in The Geological Society of America, 97th meeting: Geological Society
of America Abstracts with Programs, v. 16, no. 6, p. 611.<BR>
<HR>
Normark, William R., Morton, Janet L., Holcomb, Robin T., and Franklin, James M., 1983, Southern
Juan de Fuca Ridge revisited; a new evalution of the distribution of hydrothermal activity,
sulfide mineral deposits, and volcanic features: American Geophysical Union Eos, Transactions,
v. 64, no. 45, p. 857.<BR>
<HR>
Kappel, Ellen S., and Normark, William R., Morphometric variability within the axial
zone of the southern Juan de Fuca Ridge; interpretation from Sea MARC II, Sea MARC I,
and deep-sea photography, in Special section on The southern Juan de Fuca Ridge; hydrothermal
fluids, sulfides, and geophysical studies [modified]: Journal of Geophysical Research, B,
Solid Earth and Planets, v. 92, no. 11, p. 11,291-11,302.<BR>
<HR>
Morton, Janet L., Normark, William R., Mann, Dennis M., and Tompkins, Donald H., 1987, Geology,
evolution, and mineral potential of the Juan de Fuca Ridge, in Scholl, David W.,
Grantz, Arthur, and Vedder, John G., eds., Geology and resource potential of the continental
margin of western North America and adjacent ocean basins, Beaufort Sea to Baja California:
Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 6, p. 537-547.<BR>
<HR>
Normark, William R., and Morton, Janet L., 1987, Detailed structural mapping of an ocean rift,
sing acoustic-transponder positioning; problems of net maintenance (1981-86) and new experiments
possible with long-life transponders, in Kumar, Muneendra, and Maul, George A., Proceedings;
International symposium on Marine positioning: Dordrecht, Netherlands, D. Reidel Publ. Co.<BR>
<HR>
Normark, W.R., Morton, J.L., and Saxena, N.K., 1990, Scaling considerations for acoustic
measurement of ridge extension: American Geophysical Union Eos, Transactions, v. 71,
no. 43, p. 1602.<BR>
<HR>
Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects
during USGS research cruises in the Pacific Ocean, U.S. Geological Survey
Open-File Report OFR 2004-1102 <br>
<HR>
Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects
during USGS research cruises in the Pacific Ocean, U.S. Geological Survey
Open-File Report OFR 2004-1103-A <br>
<HR>
Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects
during USGS research cruises in the Pacific Ocean, U.S. Geological Survey
Open-File Report OFR 2004-1103-B <br>
<HR>
Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects
during USGS research cruises in the Pacific Ocean, U.S. Geological Survey
Open-File Report OFR 2004-1103-C <br>
<HR>
Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects
during USGS research cruises in the Pacific Ocean, U.S. Geological Survey
Open-File Report OFR 2004-1103-D <br>
<HR>
Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects
during USGS research cruises in the Pacific Ocean, U.S. Geological Survey
Open-File Report OFR 2004-1103-E <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/>, 20131029, Geophysical data of field activity L-3-83-WF in Juan de Fuca from 08/19/1983 to 09/01/1983: 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: -130.54948
    East_Bounding_Coordinate: -122.45927
    North_Bounding_Coordinate: 48.45309
    South_Bounding_Coordinate: 37.79864

  3. What does it look like?

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

    Beginning_Date: 19-Aug-1983
    Ending_Date: 01-Sep-1983
    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: Juan de Fuca
      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 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.

      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:
    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?

    Aaron Dunwald (Chief Engineer); Al McClenaghan (Ship Captain); Bill Normark (Chief Scientist); Chris Gutmacher (Dafe Curator); Earl Young (Unspecified Investigator); Ellen Kappel (Navigator); Hal Williams (Mechanical Technician); Hank Chezar (Unspecified Investigator); Jack Lee (Electronics Technician); Jan Morton (Geologist); Jeff Stampfer (Mechanical Technician); Jim Franklin (Geologist); John Porteous (Unspecified Investigator); Kaye Kinoshita (Navigator); Pat Moore (Chief Mate); Rick Viall (Electronics Technician); Rob Handy (Unspecified Investigator); Robin Holcomb (Geologist); Stephanie Ross (Geologist)

  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: 19-Jan-1996 (process 1 of 3)
    Navigation Data
    Converted to time format with year at start.
    
    05/01/85 KAYE USR$DISK:[DRS.DATA.L383WF.N]NEW.052;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    

    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  /tiger/l/l383wf/grav/l-3-83-wf.110_052
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    05/08/85 BARB USR$DISK:[DRS.DATA.L383WF.G]L383WF.110;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    Input was...
    Converted to time format with year at start.
    
    05/01/85 KAYE USR$DISK:[DRS.DATA.L383WF.N]NEW.052;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    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: 31-Oct-1998 (process 3 of 3)
    Bathymetry Data
    10/31/1998  /tiger/l/l383wf/bath/l-3-83-wf.330_052
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    05/14/85 BECKIE USR$DISK:[DRS.DATA.L383WF.B]L383WF.330;
    DRA1:[DRS.BAT]BATRED.EXE;1
    This file was originally hand-digetized in corrected meters.
    The travel-time calculated will assume 1500M per second, which
    may not reflect the travel time used when data was originally
    digetized.
    
    Input was...
    Converted to time format with year at start.
    
    05/01/85 KAYE USR$DISK:[DRS.DATA.L383WF.N]NEW.052;
    USR$DISK:[DRS.REFMT]REFORMAT.EXE;4
    
    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:
    Lichtman, G.S., Normark, William R., Delaney, J.R., Morton, J.L., Johnson, H.P., and Karsten, J.L., 1983, Photogeology and evolution of the Juan de Fuca Ridge: U.S. Geological Survey Open-File Report 83-0464, 15 p. Lichtman, Grant S., Normark, William R., and Spiess, F.N., 1984, Photogeologic study of a segment of the East Pacific Rise axis near 21 degrees N latitude: Geological Society of America Bulletin, v. 95, no. 6, p. 743-752. Normark, William R., 1982, Geologic setting of polymetallic sulfide deposits on East Pacific Rise at 21 degrees N and Juan de Fuca Ridge near 45 degrees N, in Wilson, Stuart T., ed., Transactions of the Third Circum-Pacific energy and mineral resources conference: Transactions of the Circum-Pacific Energy and Mineral Resources Conference, v. 3, p. 366. Normark, William R., Morton, Janet L., and Koski, Randolph A., 1984, The Juan de Fuca Ridge metallogenesis program, in Clarke, Samuel H., ed., U.S. Geological Survey highlights in marine research: U.S. Geological Survey Circular 0938, p. 49-56. Normark, W.R., Morton, Janet L., Holcomb, R.T., Koski, Randolph A., and Ross, S.L., 1984, A continuous linear depresion in the axial valley of the southern Juan de Fuca Ridge; tectonic or volcanic origin?, in The Geological Society of America, 97th meeting: Geological Society of America Abstracts with Programs, v. 16, no. 6, p. 611. Normark, William R., Morton, Janet L., Holcomb, Robin T., and Franklin, James M., 1983, Southern Juan de Fuca Ridge revisited; a new evalution of the distribution of hydrothermal activity, sulfide mineral deposits, and volcanic features: American Geophysical Union Eos, Transactions, v. 64, no. 45, p. 857. Kappel, Ellen S., and Normark, William R., Morphometric variability within the axial zone of the southern Juan de Fuca Ridge; interpretation from Sea MARC II, Sea MARC I, and deep-sea photography, in Special section on The southern Juan de Fuca Ridge; hydrothermal fluids, sulfides, and geophysical studies [modified]: Journal of Geophysical Research, B, Solid Earth and Planets, v. 92, no. 11, p. 11,291-11,302. Morton, Janet L., Normark, William R., Mann, Dennis M., and Tompkins, Donald H., 1987, Geology, evolution, and mineral potential of the Juan de Fuca Ridge, in Scholl, David W., Grantz, Arthur, and Vedder, John G., eds., Geology and resource potential of the continental margin of western North America and adjacent ocean basins, Beaufort Sea to Baja California: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 6, p. 537-547. Normark, William R., and Morton, Janet L., 1987, Detailed structural mapping of an ocean rift,
    sing acoustic-transponder positioning; problems of net maintenance (1981-86) and new experiments
    
    possible with long-life transponders, in Kumar, Muneendra, and Maul, George A., Proceedings; International symposium on Marine positioning: Dordrecht, Netherlands, D. Reidel Publ. Co. Normark, W.R., Morton, J.L., and Saxena, N.K., 1990, Scaling considerations for acoustic measurement of ridge extension: American Geophysical Union Eos, Transactions, v. 71, no. 43, p. 1602. Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects during USGS research cruises in the Pacific Ocean, U.S. Geological Survey Open-File Report OFR 2004-1102 <br> Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects during USGS research cruises in the Pacific Ocean, U.S. Geological Survey Open-File Report OFR 2004-1103-A <br> Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects during USGS research cruises in the Pacific Ocean, U.S. Geological Survey Open-File Report OFR 2004-1103-B <br> Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects during USGS research cruises in the Pacific Ocean, U.S. Geological Survey Open-File Report OFR 2004-1103-C <br> Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects during USGS research cruises in the Pacific Ocean, U.S. Geological Survey Open-File Report OFR 2004-1103-D <br> Chezar, Henry, and Newman, Ivy, 2004, DVD-Video Disc set of seafloor transects during USGS research cruises in the Pacific Ocean, U.S. Geological Survey Open-File Report OFR 2004-1103-E <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 (l-3-83-wf.052 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198308200443000    198308222044000
    198308231805180    198309011514000
    198309011520000    198309011520000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (l-3-83-wf.110_052)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198308200443200    198308201746390
    198308201935190    198308201944540
    198308202144140    198308202144330
    198308202207250    198308202250540
    198308210010520    198308220310390
    198308220316030    198308231142390
    198308302217090    198309011519500
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (l-3-83-wf.330_052)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    198308201459310    198308201501550
    198308201507170    198308201635260
    198308201700100    198308201734180
    198308201741180    198308201751470
    198308201805410    198308201805410
    198308201815020    198308201819020
    198308201828010    198308201828010
    198308201837540    198308201837540
    198308201851100    198308201851100
    198308201859580    198308201859580
    198308201909590    198308201932410
    198308201939540    198308202003020
    198308202015010    198308202015010
    198308202029580    198308202029580
    198308202039310    198308202039310
    198308202050490    198308202050490
    198308202058440    198308202250200
    198308202256280    198308202316280
    198308202321350    198308210051080
    198308210056460    198308210109050
    198308210115190    198308210132220
    198308210139010    198308210152080
    198308210157120    198308210200570
    198308210206030    198308210210030
    198308210224570    198308210228100
    198308210236250    198308210241200
    198308210246580    198308210249180
    198308210300560    198308210318220
    198308210329040    198308210330100
    198308210336460    198308210343040
    198308210349340    198308210408430
    198308210418220    198308210507290
    198308210515020    198308210535140
    198308210541280    198308210542440
    198308210549200    198308210610010
    198308210617140    198308210617140
    198308210622460    198308210625530
    198308210632460    198308210632460
    198308210640090    198308210645010
    198308210650080    198308210650080
    198308210656000    198308210656000
    198308210701070    198308210701070
    198308210707080    198308210707080
    198308210714580    198308210725450
    198308210731260    198308210731260
    198308210737150    198308210737150
    198308210745000    198308210753020
    198308210759170    198308210800560
    198308210806010    198308210816160
    198308210822290    198308210822290
    198308210832260    198308210907370
    198308210915020    198308210915020
    198308210929580    198308210929580
    198308210945030    198308210945030
    198308210953090    198308210954560
    198308211000010    198308211003490
    198308211013020    198308211015070
    198308211030010    198308211030010
    198308211040570    198308211040570
    198308211046560    198308211048080
    198308211054250    198308211115030
    198308211122000    198308211122000
    198308211128560    198308211137500
    198308211143140    198308211304240
    198308211313000    198308211313000
    198308211318500    198308211320160
    198308211330020    198308211334230
    198308211343020    198308211343020
    198308211348440    198308211348440
    198308211356050    198308211356050
    198308211403030    198308211403030
    198308211412200    198308211412200
    198308211421100    198308211421100
    198308211427270    198308211430000
    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 L-3-83-WF data set <http://walrus.wr.usgs.gov/infobank/l/l383wf/html/l-3-83-wf.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/l/l383wf/html/l-3-83-wf.nav.html>

Data format: ASCII Size: 1.6
Network links: <http://walrus.wr.usgs.gov/infobank/l/l383wf/html/l-3-83-wf.grav.html>

Data format: ASCII Size: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/l/l383wf/html/l-3-83-wf.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 12:50:59 2013