l380np.m77t - MGD77 data file for Geophysical data field activity L-3-80-NP in North Pacific from 05/22/1980 to 06/04/1980

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Frequently anticipated questions:


What does this data set describe?

Title:
l380np.m77t - MGD77 data file for Geophysical data field activity L-3-80-NP in North Pacific from 05/22/1980 to 06/04/1980
Abstract:
Single-beam bathymetry and magnetics data along with DGPS navigation data was collected as part of field activity L-3-80-NP in North Pacific from 05/22/1980 to 06/04/1980, http://walrus.wr.usgs.gov/infobank/l/l380np/html/l-3-80-np.meta.html These data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at http://walrus.wr.usgs.gov/infobank/l/l380np/html/l-3-80-np.bath.html and http://walrus.wr.usgs.gov/infobank/l/l380np/html/l-3-80-np.grav.html into MGD77T format provided by the NOAA's National Geophysical Data Center(NGDC). The MGD77T format includes a header (documentation) file (.h77t) and a data file (.m77t). More information regarding this format can be found in the publication listed in the Cross_reference section of this metadata file.
Supplemental_Information:
The navigation data are digitally collected using a Satellite Integrated Navigation (SINS) system. The system is a space-based satellite navigation maintained by the United States government and is accessible using a satellite receiver. This system provides navigational accuracy of approximately 200 m.The Data Acquistion, Processing, and Storage (DAPS) group performs a number of processing steps to the navigation data once it is collected which can vary by cruise. These steps are outlined within the header information in each individual digital navigation (.05x) space-delimited ASCII data file. The header information rows are indicated by lines beginning with the character "!". There is no information on how the single-beam bathymetry, gravity, and magnetic data were collected. For each data gathering cruise leg, the available data in the following categories are forwarded to NGDC: navigation, gravity, magnetics, bathymetry, and seismic shot points. The available data for each cruise leg are re-formatted and combined into the Marine Geophysical Data Exchange Format (MGD77) and into the internal NGDC SEIS-NAV format by USGS using several USGS developed FORTRAN programs.The FORTRAN programs sample the navigation to every integer minute of the cruise. When necessary, the latitudes and longitudes are linearly interpolated. If the time between the actual navigation fixes exceeds five minutes, no data are included in the MGD77 file.To build the MGD77 file, gravity, magnetics, and bathymetry are added to this sampled navigation. When necessary, gravity, magnetics, and bathymetry data are linearly interpolated if the time between the actual data samples does not exceed five minutes. If a time gap exceeds this, the data are not reported.The navigation data are merged with the seismic shot point data in a SEIS- NAV format file. For this file, navigation data are interpolated for each shot point. Both types of files are written to magnetic tape and sent to NGDC.
  1. How might this data set be cited?
    U.S. Geological Survey, and Coastal and Marine Geology Program, 2013, l380np.m77t - MGD77 data file for Geophysical data field activity L-3-80-NP in North Pacific from 05/22/1980 to 06/04/1980: U.S. Geological Survey, Menlo Park, CA.

    Online Links:

    This is part of the following larger work.

    Steele, Wm. Clinton, Degnan, Carolyn H., Deeter, Gary B., and Riordan, Jean A., 1980, DESCRIPTION OF MARINE GEOPHYSICAL DATA COLLECTED BY THE U.S. GEOLOGICAL SURVEY AND HOW TO OBTAIN IT: U.S. Geological Survey Open File Report 167, U.S. Geological Survey, Menlo Park, CA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -151.63717
    East_Bounding_Coordinate: -122.46000
    North_Bounding_Coordinate: 56.79393
    South_Bounding_Coordinate: 37.76385
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 22-May-1980
    Ending_Date: 04-Jun-1980
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: tab-delimited ASCII text files
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      Indirect_Spatial_Reference: North Pacific
      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 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.25722210100002.
  7. How does the data set describe geographic features?
    l380np.m77t
    MGD77T single-beam bathymetry and gravity data file for L380NP (Source: NOAA's National Geophysical Data Center, See Hittelman and others (2010) Cross_Reference section above for details about the MGD77T format and citation information.)
    SURVEY_ID
    Survey identifier supplied by the contributing organization (Source: NGDC) This identifier varies in format and is supplied by the contributing organization
    TIMEZONE
    Time-zone correction (Source: NGDC) In our datasets, no correction was applied. All values equal 0.
    DATE
    YYYYMMDD (Source: NGDC)
    Range of values
    Minimum:19800522
    Maximum:19800604
    Units:Year, month, day
    TIME
    Time (Source: NGDC)
    Range of values
    Minimum:0
    Maximum:2359
    Units:hours and decimal minutes
    LAT
    Latitude (Source: World Geodetic System 1984 Geographic Coordinate System)
    Range of values
    Minimum:37.76402
    Maximum:56.7277
    Units:decimal degrees
    LON
    Longitude (Source: World Geodetic System 1984 Geographic Coordinate System)
    Range of values
    Minimum:-151.59763
    Maximum:-122.46010
    Units:decimal degrees
    POS_TYPE
    Indicates how lat/lon was obtained (Source: NGDC)
    Range of values
    Minimum:1
    Maximum:3
    Units:1 = observed fix, 3 = interpolated fix, nil = unspecified
    BAT_TTIME
    Bathymetry, 2-way travel time (Source: U.S. Geological Survey)
    Range of values
    Minimum:0.455
    Maximum:6.184
    Units:seconds
    CORR_DEPTH
    Bathymetry, corrected depth (Source: U.S. Geological Survey)
    Range of values
    Minimum:333.2
    Maximum:4627
    Units:decimal meters
    BAT_CPCO
    Bathymetric Correction code - details the procedure used for determining the sound velocity correction to depth (Source: NGDC)
    Range of values
    Minimum:63
    Maximum:63
    Units:01-55 Matthews' Zones with zone , 59 Matthews' Zones, no zone specified, 60 S. Kuwahara Formula, 61 Wilson Formula, 62 Del Grosso Formula, 63 Carter's Tables, 88 Other (see Add. Doc.), 97 Computed using 1500 meters/sec, 98 Unknown if Corrected, 99 Unspecified
    BAT_TYPCO
    Bathymetry type code - indicates how the bathymetric value was obtained (Source: NGDC)
    Range of values
    Minimum:1
    Maximum:3
    Units:1 - Observed, 3 - Interpolated (Header Seq. 12), 9 - Unspecified
    Entity_and_Attribute_Overview:
    Bathymetry, gravity, and navigation data for U.S. Geological Survey bathymetry survey L380NP in MGD77T format.
    Entity_and_Attribute_Detail_Citation:
    Attributes are obtained from MGD77T data files created from the navigation, gravity, and bathymetry best files. MGD77T is the standard, defined data format used for geophysical data in the National Geophysical Data Center. See Cross_Reference section above for citation details.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • U.S. Geological Survey
    • Coastal and Marine Geology Program
  2. Who also contributed to the data set?
    Andy Stevenson (Chief Scientist)
  3. To whom should users address questions about the data?
    Gregory K. Miller
    U.S. Geological Survey
    Physical Scientist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 803-8747, ext. 3020 (voice)
    gmiller@usgs.gov

Why was the data set created?

These data and information are intended for science researchers,students, policy makers, and general public. These data are not to be used for navigation purposes. The data are reformatted into MGD77T standard format for inclusion into NOAA's NGDC geophysical database. From there the data will be made available to GeoMapApp ( http://www.geomapapp.org/ ) and Virtual Ocean ( http://www.virtualocean.org/ ) Earth-browsing software. Access to the data is also provided via the USGS Coastal and Marine Geoscience Data System ( http://cmgds.marine.usgs.gov/ ).

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 5)
    Navigation Data >Converted to time format with year at start. > >11/26/85 EDM DUA0:[DATA.DRSDATA.NAVL.L380NP]L380NP.052; >DRB0:[DRS.REFMT]REFORMAT.EXE;5 > Person who carried out this activity:
    U.S. Geological Survey (USGS) , Coastal and Marine Geology (CMG)
    Attn: Carolyn H. Degnan
    Geophysicist
    USGS Pacific Coastal & Marine Science Center, 400 Natural Bridges Drive
    Santa Cruz, CA
    USA

    (831) 460-7452 (voice)
    (831) 427-4748 (FAX)
    infobank@octopus.wr.usgs.gov
    Date: 31-Oct-1998 (process 2 of 5)
    Gravity Data >10/31/1998 /tiger/l/l380np/grav/l-3-80-np.111_052 >/bear/programs/edit/automerge/automerge > >Input was... >Converted to time format with year at start. > >10/23/85 BARB DRS$DATA:[L380NP.G]L380NP.111; >DRB0:[DRS.REFMT]REFORMAT.EXE;4 > >Input was... >Converted to time format with year at start. > >11/26/85 EDM DUA0:[DATA.DRSDATA.NAVL.L380NP]L380NP.052; >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) , Coastal and Marine Geology (CMG)
    Attn: Carolyn H. Degnan
    Geophysicist
    USGS Pacific Coastal & Marine Science Center, 400 Natural Bridges Drive
    Santa Cruz, CA
    USA

    (831) 460-7452 (voice)
    (831) 427-4748 (FAX)
    infobank@octopus.wr.usgs.gov
    Date: 31-Oct-1998 (process 3 of 5)
    Bathymetry Data >10/31/1998 /tiger/l/l380np/bath/l-3-80-np.335_052 >/bear/programs/edit/automerge/automerge > >Input was... >Converted to time format with year at start. > >11/21/85 BECKIE DUA0:[DATA.L380NP.B]L380NP.335; >DRB0:[DRS.REFMT]REFORMAT.EXE;4 >This file was hand-digetized in seconds. Depths were >calculated useing 1500M/sec for velocity of sound. > > >Input was... >Converted to time format with year at start. > >11/26/85 EDM DUA0:[DATA.DRSDATA.NAVL.L380NP]L380NP.052; >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) , Coastal and Marine Geology (CMG)
    Attn: Carolyn H. Degnan
    Geophysicist
    USGS Pacific Coastal & Marine Science Center, 400 Natural Bridges Drive
    Santa Cruz, CA
    USA

    (831) 460-7452 (voice)
    (831) 427-4748 (FAX)
    infobank@octopus.wr.usgs.gov
    Date: 20-Jun-2012 (process 4 of 5)
    MGD77 file creation - The available data for each cruise leg are re-formatted and combined into the Marine Geophysical Data Exchange Format (MGD77) and into the internal NGDC SEIS-NAV format by USGS using several USGS developed FORTRAN programs.The FORTRAN programs sample the navigation to every integer minute of the cruise. When necessary, the latitudes and longitudes are linearly interpolated. If the time between the actual navigation fixes exceeds five minutes, no data are included in the MGD77 file.To build the MGD77 file, gravity, magnetics, and bathymetry are added to this sampled navigation. When necessary, gravity, magnetics, and bathymetry data are linearly interpolated if the time between the actual data samples does not exceed five minutes. If a time gap exceeds this, the data are not reported.The navigation data are merged with the seismic shot point data in a SEIS- NAV format file. For this file, navigation data are interpolated for each shot point. Both types of files are written to magnetic tape and sent to NGDC. Person who carried out this activity:
    U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
    Attn: Carolyn H. Degnan
    Geophysicist
    USGS Pacific Coastal & Marine Science Center, 400 Natural Bridges Drive
    Santa Cruz, CA
    USA

    (831) 460-7452 (voice)
    (831) 427-4748 (FAX)
    infobank@octopus.wr.usgs.gov
    Date: 01-Feb-2017 (process 5 of 5)
    Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Alan O. Allwardt
    Contractor -- Information Specialist
    2885 Mission Street
    Santa Cruz, CA

    831-460-7551 (voice)
    831-427-4748 (FAX)
    aallwardt@usgs.gov
  3. What similar or related data should the user be aware of?
    Hittelman, Allen M., Groman, Robert C., Haworth, Richard T., Holcombe, Troy L., McHendrie, Graig, Smith, Stuart M., and Metzger, Dan R., 2010, The marine geophysical data exchange format - MGD77 / MGD77T: National Geophysical Data Center, National Oceanic and Atmospheric Administration, Boulder, CO.

    Online Links:

    Other_Citation_Details: 25 p.

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    The validity or accuracy of bathymetry and navigation data is highly qualitative and depends on equipment and operating condition variables. Data quality is unknown, MGD77T files were formatted from InfoBank files 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-3-80-np.052 [SINS]) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198005222244180 198005231042200 >198005231048200 198005231230200 >198005231236200 198005261858400 >198005261907540 198005301702200 >198005301711400 198005311108000 >198005311138000 198005311138000 >198005311202000 198005311551200 >198005311602200 198006031652200 >198006031701300 198006031833400 >198006031841050 198006040449200 >198006040528000 198006040528000 >Navigation Data (l-3-80-np.052_410) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198005280730040 198005282109550 >198005282115040 198005290639550 >198005290648040 198005291452550 >198005291500040 198005291833550 >198005291841040 198005300324550 >198005300423040 198005300459550 >198005300505040 198005300957550 >198005301003040 198005301701550 >198005310800040 198006020204550 >198006020210050 198006020749550 >198006020756040 198006021129550 >198006022017040 198006030857550 >198006031222040 198006040528000 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >Gravity Data (l-3-80-np.111_052) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198005222244180 198005261900000 >198005261907540 198005301704000 >198005301711140 198006031653400 >198006031701300 198006031834000 >198006031841050 198006040528000 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >Bathymetry Data (l-3-80-np.335_052) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198005251616060 198005260130180 >198005260139360 198005260139360 >198005260146000 198005260430000 >198005260436300 198005260602060 >198005260607300 198005262022540 >198005262038240 198005262105120 >198005262229180 198005262246480 >198005262301420 198005270303360 >198005270309240 198005270309240 >198005270314300 198005270314300 >198005270320300 198005270320300 >198005270326000 198005270326000 >198005270331240 198005270336120 >198005270341180 198005270410300 >198005270415420 198005270415420 >198005270421000 198005270425420 >198005270431060 198005270431060 >198005270440120 198005270440120 >198005270447000 198005270513180 >198005270519000 198005270522540 >198005270528180 198005270528180 >198005270533240 198005270542240 >198005270548000 198005270600540 >198005270607300 198005270633060 >198005270638480 198005270643360 >198005270649000 198005270707180 >198005270712540 198005270712540 >198005270718360 198005270723120 >198005270728300 198005270728300 >198005270733360 198005270733360 >198005270739180 198005270748120 >198005270754360 198005270800060 >198005270809360 198005270821360 >198005270826420 198005270834540 >198005270840120 198005270853060 >198005270858180 198005271000060 >198005271006300 198005271024360 >198005271030180 198005271030180 >198005271035480 198005271100000 >198005271105060 198005271110000 >198005271115060 198005271230000 >198005271235180 198005271235180 >198005271241060 198005271245360 >198005271251000 198005271251000 >198005271257420 198005271257420 >198005271306480 198005271306480 >198005271314120 198005271314120 >198005271320180 198005271320180 >198005271326120 198005271326120 >198005271332060 198005271332060 >198005271339000 198005271339000 >198005271344180 198005271707480 >198005271713000 198005271716240 >198005271721420 198005271749360 >198005271755240 198005271829540 >198005271837180 198005271852060 >198005271947180 198005271954060 >198005271959540 198005271959540 >198005272005420 198005272005420 >198005272011540 198005272011540 >198005272019120 198005272019120 >198005272024180 198005272111240 >198005272119000 198005272119000 >198005272130240 198005280321480 >198005280327240 198005280327240 >198005280332300 198005280345540 >198005280351360 198005280417540 >198005280423060 198005280539000 >198005280546060 198005280610060 >198005280635300 198005281053120 >198005281103000 198005281215480 >198005281221060 198005281422180 >198005281427360 198005281430060 >198005281438060 198005281536420 >198005281541480 198005281607120 >198005281613540 198005281701120 >198005281708060 198005281744540 >198005281754120 198005281918000 >198005281932420 198005281932420 >198005281938300 198005282016540 >198005282022540 198005282157120 >198005282202300 198005282345240 >198005282352000 198005290000060 >198005290014540 198005290115420 >198005290123240 198005290159060 >198005290206360 198005290229540 >198005290238360 198005290259120 >198005290308000 198005290335240 >198005290345360 198005290359480 >198005290411420 198005290634360 >198005290640120 198005290754360 >198005290800060 198005290933180 >198005290939240 198005290951540 >198005291004360 198005291011180 >198005291032420 198005291104360 >198005291110300 198005291219000 >198005291228480 198005291514000 >198005291523360 198005291536240 >198005291551300 198005291601480 >198005291619180 198005291655240 >198005291701480 198005291858060 >198005291904060 198005291932060 >198005291938180 198005291938180 >198005291947000 198005292053480 >198005292100420 198005292118120 >198005292127540 198005292213060 >198005292219180 198005292223180 >198005292230060 198005300019360 >198005300030000 198005300034300 >198005300057120 198005300155480 >198005300205300 198005300335060 >198005300341540 198005300445540 >198005300502300 198005300508420 >198005300515000 198005300515000 >198005300520120 198005300639480 >198005300647420 198005300649180 >198005300655360 198005300759480 >198005300807000 198005300810480 >198005300816060 198005300834480 >198005300848540 198005301029120 >198005301123540 198005301156060 >198005301202480 198005301304540 >198005301313180 198005301431000 >198005301437180 198005301440060 >198005301458180 198005301548420 >198005301604240 198005301747540 >198005301811480 198005301849060 >198005301901300 198005301904180 >198005301913360 198005301944240 >198005302130240 198005302222000 >198005302227240 198005302248480 >198005302254060 198005302325240 >198005302330420 198005310135360 >198005310141480 198005310141480 >198005310147060 198005310215540 >198005310230420 198005310241180 >198005310252420 198005310259540 >198005310307360 198005310311180 >198005310317000 198005310321120 >198005310344540 198005310344540 >198005310352540 198005310352540 >198005310400180 198005310408240 >198005310417060 198005310417360 >198005310423540 198005310432300 >198005310440000 198005310532180 >198005310538180 198005310601420 >198005310607060 198005310607060 >198005310612300 198005310635360 >198005310640420 198005310656480 >198005310745480 198005310832120 >198005310901360 198005310946420 >198005311018480 198005311038540 >198005311101300 198005311246300 >198005311251420 198005311254420 >198005311300000 198005311324000 >198005311331060 198005311331060 >198005311339180 198005311339180 >198005311348000 198005311348000 >198005311354300 198005311354300 >198005311403420 198005311403420 >198005311410180 198005311410180 >198005311418000 198005311418000 >198005311426180 198005311426180 >198005311433240 198005311433240 >198005311442540 198005311452120 >198005311458180 198005312047360 >198005312052420 198006010249540 >198006010255420 198006010750240 >198006010759120 198006011230000 >198006011236420 198006011412540 >198006011418000 198006011440360 >198006011446180 198006011446180 >198006011515420 198006011523000 >198006011529540 198006011529540 >198006011535540 198006011558300 >198006011619540 198006011633420 >198006011645540 198006011705060 >198006011710420 198006011752180 >198006011806360 198006012009300 >198006012015480 198006012145180 >198006012150480 198006012150480 >198006012156000 198006012159240 >198006012206000 198006012217240 >198006012224120 198006012251480 >198006012315360 198006012320420 >198006012329480 198006020102300 >198006020110060 198006020204000 >198006020220240 198006020334000 >198006020341120 198006020444300 >198006020452180 198006020511480 >198006020518120 198006020518120 >198006020527060 198006020531420 >198006020539540 198006020553120 >198006020600300 198006020605180 >198006020616120 198006020619120 >198006020631300 198006020656300 >198006020702300 198006020722120 >198006020851000 198006020902120 >198006020910300 198006020941360 >198006020951000 198006021027540 >198006021033540 198006021033540 >198006021039180 198006021058060 >198006021105300 198006021129240 >198006021258300 198006021258300 >198006021315060 198006021320420 >198006021331300 198006021350240 >198006021402060 198006021402060 >198006021411180 198006021411180 >198006021416300 198006021444360 >198006021452300 198006021532300 >198006021538120 198006021552360 >198006021559480 198006021713420 >198006021719180 198006021730000 >198006021739180 198006021739180 >198006021745000 198006021746540 >198006021752180 198006021752180 >198006021757420 198006021821480 >198006021834000 198006021837420 >198006021843300 198006021851300 >198006021856420 198006021900180 >198006021905480 198006021953000 >198006022014240 198006030037480 >198006030043120 198006030131000 >198006030138000 198006030308360 >198006030314120 198006030515240 >198006030525420 198006030759060 >198006030808240 198006031006480 >198006031034540 198006031041300 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >Seismic Shots Data (l-3-80-np.410) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198005280730040 198005282109550 >198005282115040 198005290639550 >198005290648040 198005291452550 >198005291500040 198005291833550 >198005291841040 198005300324550 >198005300423040 198005300459550 >198005300505040 198005300957550 >198005301003040 198005301701550 >198005310800040 198006020204550 >198006020210050 198006020749550 >198006020756040 198006021129550 >198006022017040 198006030857550 >198006031222040 198006040528000 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST
  5. How consistent are the relationships among the observations, including topology?
    This data set is from one field activity with unknown instrument calibrations. Processed bathymetric depths were spot checked based on latitude and longitude against the Global Multi-Resolution Topography (GMRT) grid within GeoMapApp to ensure reasonable values.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None. These data are held in the public domain.
Use_Constraints:
This information is not intended for navigational purposes. Read and fully comprehend the metadata prior to data use. Uses of these data should not violate the spatial resolution of the data. Where these data are used in combination with other data of different resolution, the resolution of the combined output will be limited by the lowest resolution of all the data. Acknowledge the U.S. Geological Survey in products derived from these data. Share data products developed using these data with the U.S. Geological Survey.This database has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.Although this Federal Geographic Data Committee-compliant metadata file is intended to document these data in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey
    345 Middlefield Road MS 999
    Menlo Park, CA
    USA

    (650) 329-5078 (voice)
    (650) 329-5190 (FAX)
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm 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?

Who wrote the metadata?

Dates:
Last modified: 01-Feb-2017
Metadata author:
Gregory K. Miller
U.S. Geological Survey
Physical Scientist
U.S. Geological Survey, 600 Fourth Street South
St. Petersburg, FL
USA

(727) 803-8747, ext. 3020 (voice)
gmiller@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/845.faq.html>
Generated by mp version 2.9.49 on Mon Sep 10 17:43:20 2018