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What does this data set describe?

Title:
Geophysical data of field activity G-1-77-EG in Yakutat Bay, Eastern Gulf of Alaska from 04/27/1977 to 05/22/1977
Abstract:
Chief Scientist: Paul Carlson. Geophysical data (minisparker, bathymetry, 3dot5khz, underwatertelevision) of field activity G-1-77-EG in Yakutat Bay, Eastern Gulf of Alaska from 04/27/1977 to 05/22/1977, <http://walrus.wr.usgs.gov/infobank/g/g177eg/html/g-1-77-eg.meta.html>.
Supplemental_Information:

Equipment Used -
minisparker
bathymetry
3dot5khz 3.5 khz bathymetry
underwatertelevision
Publications -
Carlson, P.R., Molnia, B.F., Hampson, J., Post, A., and Atwood, T.J., 1978, Post-deglaciation
sedimentation in Yakutat Bay, Alaska: American Geophysical Union Eos, Transactions, v. 59,
no. 4, p. 296.<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 G-1-77-EG in Yakutat Bay, Eastern Gulf of Alaska from 04/27/1977 to 05/22/1977: 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: -143.84149
    East_Bounding_Coordinate: -139.49023
    North_Bounding_Coordinate: 60.08285
    South_Bounding_Coordinate: 59.36168

  3. What does it look like?

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

    Beginning_Date: 27-Apr-1977
    Ending_Date: 22-May-1977
    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: Yakutat Bay, Eastern Gulf of 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:
    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?

    Paul Carlson (Chief Scientist, USGS Western Region); Austin Post (Skipper, USGS WRD); Jack Hampson (Geologist, USGS)

  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 2)
    Navigation Data
    Converted to time format with year at start.
    
    01/23/86 KAYE DUA0:[DATA.G177EG.N]G177EG.010;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    

    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)
    Bathymetry Data
    10/31/1998  /tiger/g/g177eg/bath/g-1-77-eg.335_010
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    02/06/86 BECKIE DISK$USERDISK:[BECKIE.TEMP]G177EG.335;
    DRB0:[DRS.BAT]BATRED.EXE;1
    This file was hand-digetized in 2-way traveltime(secs).
    It was reduced with no Matthews correction and velocity
    of sound assumed was 1500m/sec.
    
    Input was...
    Converted to time format with year at start.
    
    01/23/86 KAYE DUA0:[DATA.G177EG.N]G177EG.010;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    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:
    Carlson, P.R., Molnia, B.F., Hampson, J., Post, A., and Atwood, T.J., 1978, Post-deglaciation sedimentation in Yakutat Bay, Alaska: American Geophysical Union Eos, Transactions, v. 59, no. 4, p. 296.



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-1-77-eg.010 [DRS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197704271839010    197705051759070
    197705081425070    197705082305070
    197705091320070    197705092115070
    197705101110070    197705101900070
    197705110800070    197705110920070
    197705111135140    197705111547140
    197705131324070    197705131750070
    197705131814000    197705131850000
    197705131955070    197705132125070
    197705141758070    197705141930070
    197705151554070    197705152108070
    197705161959070    197705162310070
    197705170100070    197705170545070
    197705181237010    197705181315010
    197705181541070    197705181618070
    197705182128070    197705182240070
    197705191325070    197705191450070
    197705191639070    197705191810070
    197705191915070    197705192035070
    197705201415070    197705201740070
    197705220825080    197705220918080
    197705221012080    197705221345080
    197705221407080    197705221945080
    197705222007080    197705222200080
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (g-1-77-eg.335_010)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197704291130300    197704291137000
    197704291143000    197704291150000
    197704291157000    197704291202000
    197704291225000    197704291237000
    197704291245000    197704291342000
    197704291348000    197704291350000
    197704291356000    197704291356000
    197704291402000    197704291410300
    197704291418000    197704291432180
    197704291438000    197704291438000
    197704291445000    197704291445000
    197704291453000    197704291527000
    197704291533000    197704291533000
    197704291543000    197704291543000
    197704291558000    197704291600000
    197704291614000    197704291614000
    197704291633000    197704291633000
    197704291640000    197704291640000
    197704291652000    197704291711060
    197704291717120    197704291717120
    197704291724180    197704291731540
    197704291738000    197704291738000
    197704291745000    197704291803000
    197704291816000    197704291840000
    197704291845360    197704291850300
    197704291901000    197704291901000
    197704291909000    197704291909000
    197704291919000    197704291931000
    197704291937300    197704291937300
    197704291945000    197704291947120
    197704291955000    197704292011000
    197704292021000    197704292022000
    197704292028180    197704292054000
    197705011034000    197705011038300
    197705011045000    197705011107300
    197705011114000    197705011114000
    197705011120000    197705011217000
    197705011226000    197705011250000
    197705011256300    197705011312000
    197705020952000    197705020952000
    197705021000000    197705021026000
    197705021037000    197705021043000
    197705021054000    197705021110000
    197705021116000    197705021129000
    197705021137000    197705021144000
    197705021150000    197705021156000
    197705021203000    197705021216000
    197705021222000    197705021227300
    197705021236000    197705021300000
    197705021305120    197705021313300
    197705021319300    197705021324000
    197705021331000    197705021331000
    197705021337000    197705021344000
    197705021431000    197705021439000
    197705021445000    197705021452000
    197705021512000    197705021604000
    197705021612000    197705021638300
    197705021646000    197705021652000
    197705021657420    197705021657420
    197705021704000    197705021704000
    197705021709300    197705021721000
    197705021727000    197705021755300
    197705021804000    197705021816000
    197705021821300    197705021821300
    197705021827000    197705021827000
    197705021833120    197705021843300
    197705040933000    197705040935000
    197705040945000    197705040950000
    197705040956000    197705041010000
    197705041020000    197705041736000
    197705041741300    197705042000000
    197705042012000    197705042125000
    197705042132000    197705042310000
    197705051126000    197705051216300
    197705051225000    197705051245000
    197705051346000    197705051630000
    197705081434240    197705081437480
    197705081443300    197705081519000
    197705081525000    197705081531000
    197705081537000    197705081544300
    197705081550300    197705081600000
    197705081608000    197705081613000
    197705081619000    197705081632000
    197705081640000    197705081850000
    197705081900000    197705081950000
    197705082000000    197705082241000
    197705082248360    197705082304000
    197705091320000    197705092115000
    197705101110000    197705101117000
    197705101122300    197705101140000
    197705101146000    197705101230000
    197705101236000    197705101236000
    197705101241300    197705101253300
    197705101300000    197705101305000
    197705101312120    197705101327180
    197705101335000    197705101500000
    197705101510000    197705101644180
    197705101650000    197705101900000
    197705110801000    197705110834000
    197705110839180    197705110839180
    197705110850000    197705110857000
    197705110909300    197705110920000
    197705111146300    197705111229300
    197705111235180    197705111437000
    197705111443000    197705111450000
    197705111458300    197705111524180
    197705111530000    197705111546000
    197705131330000    197705131357000
    197705131405000    197705131443000
    197705131450000    197705131512000
    197705131520000    197705131545000
    197705131551000    197705131628000
    197705131633300    197705131651000
    197705131700000    197705131712000
    197705131719000    197705131719000
    197705131725000    197705131750000
    197705131953000    197705131953000
    197705132000000    197705132045000
    197705132055000    197705132125000
    197705141758000    197705141909000
    197705141915000    197705141930000
    197705151555000    197705151610300
    197705151620000    197705151729000
    197705151735000    197705151804000
    197705151809120    197705151843000
    197705151850000    197705151939000
    197705151945000    197705152022300
    197705152028000    197705152108000
    197705170100000    197705170500360
    197705170510000    197705170543000
    197705181558000    197705181558000
    197705181604000    197705181618000
    197705182129000    197705182203120
    197705182210000    197705182212000
    197705182220000    197705182231000
    197705182237300    197705182238000
    197705191325000    197705191445000
    197705191639000    197705191658120
    197705191707000    197705191730000
    197705191735120    197705191811000
    197705191914000    197705191914000
    197705191920000    197705191944000
    197705191950000    197705192015000
    197705192023000    197705192035000
    197705201415000    197705201500000
    197705201506000    197705201511120
    197705201520000    197705201520000
    197705201526000    197705201619000
    197705201630000    197705201646300
    197705201652000    197705201740000
    197705220826000    197705220918000
    197705221012000    197705221315000
    197705221328000    197705221328000
    197705221345000    197705221410000
    197705221420000    197705222005000
    197705222015000    197705222150000
    197705222200000    197705222200000
    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-1-77-EG data set <http://walrus.wr.usgs.gov/infobank/g/g177eg/html/g-1-77-eg.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: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/g/g177eg/html/g-1-77-eg.nav.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/g/g177eg/html/g-1-77-eg.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 10:40:47 2013