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What does this data set describe?

Title:
Geophysical data of field activity L-4-85-WF in Juan de Fuca from 07/28/1985 to 08/08/1985
Abstract:
Chief Scientist: Bill Normark. Geophysical data (3dot5khz, 12khz, uniboom, airgun, airgunmonitor, heatflow, bottomseismometer, underwatercamera, underwatertelevision, bottomtransponder, integratednavigation, LoranC, RhoRho) of field activity L-4-85-WF in Juan de Fuca from 07/28/1985 to 08/08/1985, <http://walrus.wr.usgs.gov/infobank/l/l485wf/html/l-4-85-wf.meta.html>.
Supplemental_Information:

Equipment Used -
3dot5khz 3.5 khz bathymetry
12khz 12 khz bathymetry
uniboom
airgun single-channel airgun
airgunmonitor single-channel airgun monitor
heatflow
bottomseismometer
underwatercamera
underwatertelevision
bottomtransponder acoustic bottom transponder
integratednavigation
LoranC
RhoRho Loran-C Rho-Rho
Publications -
Morton, Janet L., Normark, William R., and Holcomb, Robin T., 1986, Geology, structure, and
volcanic processes of southern Juan de Fuca Ridge: American Association of Petroleum Geologists
Bulletin, v. 70, no. 7, p. 931.<BR>
<HR>
Normark, William R., Morton, Janet L., and Ross, Stephanie L., 1987, Submersible observations
along the southern Juan de Fuca Ridge; 1984 Alvin Program, 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. 11,283-11,290.<BR>
<HR>
deCharon, Annette V., Embley, Robert W., and Normark, William R., 1988, Structure and
tectonics of Cascadia Depression; a sedimented extensional basin within the Blanco
transform fault zone: American Geophysical Union Eos, Transactions, v. 69, no. 44, p. 1422.<BR>
<HR>
Normark, William R., and Morton, Janet L., 1987, Detailed structural mapping of an ocean rift,
using 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>
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 2004-1116-A
<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 2004-1116-B
<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 2004-1116-C
<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 2004-1116-D
<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 2004-1116-E

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 L-4-85-WF in Juan de Fuca from 07/28/1985 to 08/08/1985: 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: -130.57957
    East_Bounding_Coordinate: -124.18956
    North_Bounding_Coordinate: 44.87353
    South_Bounding_Coordinate: 38.52562

  3. What does it look like?

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

    Beginning_Date: 28-Jul-1985
    Ending_Date: 08-Aug-1985
    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.

      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:
    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?

    Al McClenaghan (Ship Captain); Bette Lu Krause (Chief Mate); Bill Lafleur (Chief Engineer); Bill Normark (Chief Scientist); Bob Embley (Geologist, PMEL/NOAA); Bruce Dubendorf (Watchstander, OSU); Chris Gutmacher (Geologist); Dale Bibee (Geologist, OSU); Dallas Abbott (Geologist, OSU); Doug Harmon (Navigator); Hank Chezar (Geologist); Jack Lee (Electronics Technician); Jeff Stampfer (Mechanical Technician); Jim Nicholson (Electronics Technician); Kaye Kinoshita (Dafe Curator); Kevin O'Toole (Mechanical Technician); Pat Dunn (Watchstander); Paul O'Neill (Unspecified Investigator, OSU); Stephanie Ross (Navigator); Tom Fairbanks (Unspecified Investigator, OSU)

  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.

12/18/85 KAYE DUA0:[DATA.L485WF.N]L485WF.071;
DRB0:[DRS.NAV]EOTCSSP.EXE;

    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 2 of 3)
    Magnetics Data 
    06/20/2012 carolyn l-4-85-wf.220_071

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/magred11/magred11.for
Using geodetic coordinate system (Earth shape approximated by spheriod)
with altitude 0.0 km (for sea level).

Input was...
10/31/1998  /tiger/l/l485wf/mag/l-4-85-wf.200_071
/bear/programs/edit/automerge/automerge

Converted to time format with year at start.

12/06/85 CAROLYN DRS$DATA:[L485WF.M]L485WF.200;
DRB0:[DRS.REFMT]REFORMAT.EXE;5

08/21/85 EDM DRS$DATA:[L485WF.M]L45MA1.200;
DRB0:[DRS.MAG]REFMTMAG.EXE;

Converted to time format with year at start.

12/18/85 KAYE DUA0:[DATA.L485WF.N]L485WF.071;
DRB0:[DRS.NAV]EOTCSSP.EXE;

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/l485wf/bath/l-4-85-wf.330_071
/bear/programs/edit/automerge/automerge

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

08/18/88 JEAN DUA0:[DRS.CDI.NORMARK]L485WF.330;
DUA0:[DRS.BAT]BATRED.EXE;2
Edited bathymetry data

09/06/85 BECKIE DUA0:[DATA.L485WF.B]L485WF.301;
DRB0:[DRS.DSMPL]DESAMTIME.EXE;1
This file is 2 min. digitrack bathy.

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

12/18/85 KAYE DUA0:[DATA.L485WF.N]L485WF.071;
DRB0:[DRS.NAV]EOTCSSP.EXE;

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:
    Morton, Janet L., Normark, William R., and Holcomb, Robin T., 1986, Geology, structure, and volcanic processes of southern Juan de Fuca Ridge: American Association of Petroleum Geologists Bulletin, v. 70, no. 7, p. 931. Normark, William R., Morton, Janet L., and Ross, Stephanie L., 1987, Submersible observations along the southern Juan de Fuca Ridge; 1984 Alvin Program, 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. 11,283-11,290. deCharon, Annette V., Embley, Robert W., and Normark, William R., 1988, Structure and tectonics of Cascadia Depression; a sedimented extensional basin within the Blanco transform fault zone: American Geophysical Union Eos, Transactions, v. 69, no. 44, p. 1422. Normark, William R., and Morton, Janet L., 1987, Detailed structural mapping of an ocean rift, using 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. 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 2004-1116-A 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 2004-1116-B 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 2004-1116-C 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 2004-1116-D 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 2004-1116-E


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-4-85-wf.071)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
198507281829000    198508081803000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Magnetics Data (l-4-85-wf.220_071)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
198508030059320    198508030059360
198508030523280    198508030523400
198508030534400    198508030916320
198508030940560    198508031320000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Bathymetry Data (l-4-85-wf.330_071)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
198507281926430    198507282025000
198507282035000    198507282131000
198507282200000    198507282242000
198507282306000    198507282306000
198507290042000    198507290042000
198507290609000    198507290609000
198507290615000    198507290615000
198507290625000    198507290641000
198507290820000    198507290820000
198507290847000    198507290847000
198507290911000    198507290911000
198507290948000    198507290948000
198507290957000    198507290957000
198507291104000    198507291104000
198507291115000    198507291115000
198507291121000    198507291121000
198507291128000    198507291139000
198507291340000    198507291342000
198507291436000    198507291436000
198507291538000    198507291538000
198507291547000    198507291551000
198507291637000    198507291637000
198507291648000    198507291648000
198507291654000    198507291654000
198507291703000    198507291703000
198507291709000    198507291709000
198507291730000    198507291737000
198507291753000    198507291753000
198507291808000    198507291811000
198507291818000    198507291823000
198507291944000    198507291944000
198507292018000    198507292022000
198507312256000    198508061817000
198508061823000    198508061831000
198508061842000    198508062207000
198508062220000    198508070108000
198508070128000    198508070201000
198508070303000    198508070303000
198508070309000    198508070309000
198508070316000    198508070325000
198508070332000    198508070337000
198508070343000    198508070343000
198508070404000    198508070404000
198508070434000    198508070439000
198508070459000    198508070459000
198508070516000    198508070530000
198508070543000    198508070543000
198508070644000    198508070703000
198508070712000    198508070719000
198508070728000    198508070728000
198508070916000    198508070916000
198508071229000    198508071229000
198508071433000    198508071437000
198508071649000    198508071649000
198508071807000    198508071807000
198508071820000    198508071820000
198508071826000    198508071828000
198508071918000    198508071918000
198508080138000    198508080138000
198508080600000    198508080615000
198508080650000    198508080703000
198508080827000    198508080831000
198508081133000    198508081138000
198508081153000    198508081153000
198508081223000    198508081223000
198508081229000    198508081229000
198508081532000    198508081532000
198508081538000    198508081538000
198508081558000    198508081558000
198508081604000    198508081604000
198508081632000    198508081634000
198508081646000    198508081646000
198508081743000    198508081743000
198508081757000    198508081757000
198508081803000    198508081803000
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-4-85-WF data set <http://walrus.wr.usgs.gov/infobank/l/l485wf/html/l-4-85-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: 0.7
Network links: <http://walrus.wr.usgs.gov/infobank/l/l485wf/html/l-4-85-wf.nav.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/l/l485wf/html/l-4-85-wf.mag.html>

Data format: ASCII Size: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/l/l485wf/html/l-4-85-wf.bath.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 07:20:14 2013