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What does this data set describe?

Title:
Geophysical data of field activity G-19-71-BS in Bering Sea, Alaska from 07/22/1971 to 09/09/1971
Abstract:
United States Geological Survey, Menlo Park, California,Scripps Institution of Oceanography. Chief Scientists: Joe Creager, Dave Scholl. Geophysical data (bathymetry, magnetics) of field activity G-19-71-BS in Bering Sea, Alaska from 07/22/1971 to 09/09/1971, <http://walrus.wr.usgs.gov/infobank/g/g1971bs/html/g-19-71-bs.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry
magnetics
Notes -
was also known as G1971NP
Publications -
Core Data from the Deep Sea Drilling Project, Leg 19:
<A HREF="<http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/19/leg19.htm>"><http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/19/leg19.htm>

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 G-19-71-BS in Bering Sea, Alaska from 07/22/1971 to 09/09/1971: 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: 147.87930
    East_Bounding_Coordinate: -152.33640
    North_Bounding_Coordinate: 57.23030
    South_Bounding_Coordinate: 44.05070

  3. What does it look like?

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

    Beginning_Date: 22-Jul-1971
    Ending_Date: 09-Sep-1971
    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: Bering Sea, Alaska
      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:
    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>
    Entity_and_Attribute_Overview:
    Samples with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/samp.html>
    Entity_and_Attribute_Detail_Citation:
    "time/lat/long style, multi-record, in caps, without tabs" 
    Mnemonic:       "(Year, DayOfYear, UTCHour, Min, Sec, Tenths, Lat, Long, ActivityID, EquipmentType, Depth, DepthUnits, Line, Station, Roll, Comments)  [DAPS]"
FORTRAN format: "(Year, DayOfYear, UTCHour, Min, Sec, Tenths, Hundredths, Lat, Long, ActivityID, EquipmentType, Depth, DepthUnits, Line, Station, Roll, Comments) [DAPX]"
C format:       "(i4.4, i3.3, 3i2.2, i1.1, t16, f9.5, t26, f10.5, t37, a, t45, a24, t70, f6.1, t78, a1, t80, a9, t90, a9, t100, a9, t110, a)  [DAPS]"
Naming:         .onoff.GRAV_EQUIPMENT_TYPE

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?

    Joe Creager (Chief Scientist); Dave Scholl (Chief Scientist, 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: 06-Dec-1995 (process 1 of 3)
    Navigation Data 
    Converted to time format with year at start.

03/20/86 CAROLYN DRS$DATA:[CAROLYN.JON]GLCH71BS.050;
DUA0:[DATA.][CAROLYN.JON]FMTA.EXE;

Input was...
REDUCED MAGNETICS  BERING SEA  GLOMARCHALLENGER-71-BS  LINES 183 - 194
DATA: ID,LINE,JD,IH,AM,OBS,REG,RES,LAT,LONG,CSE,SPD
FORMAT(A2,I3,I3,I2,I2,T15,I5,T25,F6.0,T32,F6.0,T39,F8.4,T49,F9.4,T60,F5.1,T66,F4.1)

    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 g-19-71-bs.220_050

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/g/g1971bs/mag/g-19-71-bs.200_050
/bear/programs/edit/automerge/automerge

Converted to time format with year at start.

03/20/86 CAROLYN DRS$DATA:[CAROLYN.JON]GLCH71BS.200;
DUA0:[DATA.][CAROLYN.JON]FMTA.EXE;

REDUCED MAGNETICS  BERING SEA  GLOMARCHALLENGER-71-BS  LINES 183 - 194
DATA: ID,LINE,JD,IH,AM,OBS,REG,RES,LAT,LONG,CSE,SPD
FORMAT(A2,I3,I3,I2,I2,T15,I5,T25,F6.0,T32,F6.0,T39,F8.4,T49,F9.4,T60,F5.1,T66,F4.1)

Converted to time format with year at start.

03/20/86 CAROLYN DRS$DATA:[CAROLYN.JON]GLCH71BS.050;
DUA0:[DATA.][CAROLYN.JON]FMTA.EXE;

REDUCED MAGNETICS  BERING SEA  GLOMARCHALLENGER-71-BS  LINES 183 - 194
DATA: ID,LINE,JD,IH,AM,OBS,REG,RES,LAT,LONG,CSE,SPD
FORMAT(A2,I3,I3,I2,I2,T15,I5,T25,F6.0,T32,F6.0,T39,F8.4,T49,F9.4,T60,F5.1,T66,F4.1)

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/g/g1971bs/bath/g-19-71-bs.305_050
/bear/programs/edit/automerge/automerge

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

03/03/86 CAROLYN DRS$DATA:[G171BS.M]G171BS.305;
DUA0:[DATA.][G171BS.M]TEMP2.EXE;
This file was G171BS300.DAT on VAM124.  It was
hand-digetized in meters.
                         ***** WARNING *****
                         ***** WARNING *****
These times appear to be LOCAL times, but they may contain inconsistancies.
Other files for this cruise are in GMT times.

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

03/20/86 CAROLYN DRS$DATA:[CAROLYN.JON]GLCH71BS.050;
DUA0:[DATA.][CAROLYN.JON]FMTA.EXE;

REDUCED MAGNETICS  BERING SEA  GLOMARCHALLENGER-71-BS  LINES 183 - 194
DATA: ID,LINE,JD,IH,AM,OBS,REG,RES,LAT,LONG,CSE,SPD
FORMAT(A2,I3,I3,I2,I2,T15,I5,T25,F6.0,T32,F6.0,T39,F8.4,T49,F9.4,T60,F5.1,T66,F4.1)

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:
    Core Data from the Deep Sea Drilling Project, Leg 19: <A HREF="<http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/19/leg19.htm>"><http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/19/leg19.htm>


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 (g-19-71-bs.050 [SINS])
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197107230600000    197107250305000
197107282300000    197107300315000
197107300400000    197107300915000
197107301000000    197107301330000
197107301400000    197107301755000
197108050300000    197108051510000
197108072100000    197108090200000
197108090945000    197108092110000
197108132310000    197108140625000
197108141720000    197108151510000
197108170730000    197108171055000
197108171200000    197108171330000
197108171350000    197108180935000
197108211930000    197108220830000
197108240615000    197108242315000
197108281200000    197108291550000
197109031700000    197109040055000
197109040205000    197109040930000
197109040955000    197109051450000
197109051500000    197109061135000
197109071400000    197109080655000
197109080800000    197109080825000
197109081400000    197109090555000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Magnetics Data (g-19-71-bs.220_050)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197107230600000    197107250305000
197107282300000    197107300315000
197107300400000    197107300915000
197107301000000    197107301330000
197107301400000    197107301755000
197108050300000    197108051510000
197108072100000    197108090200000
197108090945000    197108092110000
197108132310000    197108140625000
197108141720000    197108151510000
197108170730000    197108171055000
197108171200000    197108171330000
197108171350000    197108180935000
197108211930000    197108220830000
197108240615000    197108242315000
197108281200000    197108291550000
197109031700000    197109040055000
197109040205000    197109040930000
197109040955000    197109051450000
197109051500000    197109061135000
197109071400000    197109080655000
197109080800000    197109080825000
197109081400000    197109090555000
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
Bathymetry Data (g-19-71-bs.305_050)
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
197107230600000    197107231400000
197107231410000    197107231415000
197107231425000    197107231730000
197107231740000    197107232020000
197107232030000    197107240015000
197107240025000    197107240030000
197107240045000    197107240115000
197107240130000    197107240350000
197107240400000    197107240425000
197107240435000    197107240510000
197107240520000    197107241900000
197107281400000    197107281400000
197107281425000    197107282135000
197107282145000    197107290420000
197107290430000    197107300710000
197107300800000    197107300800000
197108041600000    197108041950000
197108042000000    197108050510000
197108071000000    197108080250000
197108080300000    197108081400000
197108081410000    197108081520000
197108082200000    197108090205000
197108090215000    197108091325000
197108131154000    197108131950000
197108140610000    197108140610000
197108140620000    197108140620000
197108140630000    197108140735000
197108140745000    197108142315000
197108142330000    197108150355000
197108161550000    197108162350000
197108172300000    197108181440000
197108181450000    197108181610000
197108181620000    197108181950000
197108182000000    197108182100000
197108182147000    197108182147000
197108220550000    197108220625000
197108220635000    197108220650000
197108220700000    197108220715000
197108220725000    197108221135000
197108221200000    197108221205000
197108221215000    197108222020000
197108241700000    197108242150000
197108242200000    197108251105000
197108282245000    197108291145000
197108291200000    197108291200000
197108291225000    197108291235000
197108291245000    197108291245000
197108291300000    197108291320000
197108291330000    197108291330000
197108291340000    197108291340000
197108291350000    197108291350000
197108291400000    197108291410000
197108291430000    197108291440000
197108291450000    197108291505000
197108291515000    197108300030000
197108300100000    197108300310000
197108300500000    197108300525000
197108300547000    197108300547000
197108300558000    197108300558000
197109040400000    197109040405000
197109040415000    197109040440000
197109040450000    197109040700000
197109040710000    197109042030000
197109042040000    197109050320000
197109050330000    197109050410000
197109050425000    197109050440000
197109050450000    197109061540000
197109061555000    197109062200000
197109062250000    197109062250000
197109062300000    197109062300000
197109072340000    197109080330000
197109080345000    197109081145000
197109081200000    197109081200000
197109081215000    197109081225000
197109081255000    197109081300000
197109081310000    197109081830000
197109082350000    197109090005000
197109090015000    197109090100000
197109090115000    197109090150000
197109090200000    197109090555000
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 G-19-71-BS data set <http://walrus.wr.usgs.gov/infobank/g/g1971bs/html/g-19-71-bs.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: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/g/g1971bs/html/g-19-71-bs.nav.html>

Data format: ASCII Size: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/g/g1971bs/html/g-19-71-bs.mag.html>

Data format: ASCII Size: 0.2
Network links: <http://walrus.wr.usgs.gov/infobank/g/g1971bs/html/g-19-71-bs.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 07:13:28 2013