k283np.m77t - MGD77 data file for Geophysical data from field activity K-2-83-NP in Gorda Ridge, North Pacific from 10/08/1983 to 10/13/1983

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Originator: Coastal and Marine Geology Program
Publication_Date: 2013
Title:
k283np.m77t - MGD77 data file for Geophysical data from field activity K-2-83-NP in Gorda Ridge, North Pacific from 10/08/1983 to 10/13/1983
Geospatial_Data_Presentation_Form: tab-delimited ASCII text files
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Wm. Clinton Steele
Originator: Carolyn H. Degnan
Originator: Gary B. Deeter
Originator: Jean A. Riordan
Publication_Date: 1980
Title:
DESCRIPTION OF MARINE GEOPHYSICAL DATA COLLECTED BY THE U.S. GEOLOGICAL SURVEY AND HOW TO OBTAIN IT
Edition: 1.0
Geospatial_Data_Presentation_Form: Digital Document
Series_Information:
Series_Name: U.S. Geological Survey Open File Report
Issue_Identification: 167
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/1989/0167/report.pdf
Description:
Abstract:
Single-beam bathymetry data along with DGPS navigation data was collected as part of field activity K-2-83-NP in Gorda Ridge, North Pacific from 10/08/1983 to 10/13/1983, http://walrus.wr.usgs.gov/infobank/k/k283np/html/k-2-83-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/k/k283np/html/k-2-83-np.bath.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.
Purpose:
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/ ).
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.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19831008
Ending_Date: 19831013
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -127.46100
East_Bounding_Coordinate: -124.39167
North_Bounding_Coordinate: 42.99800
South_Bounding_Coordinate: 40.92783
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:54863dca-0bc0-402b-b828-ab0df7cf4604
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificinformation
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Marine Geology
Theme_Keyword: Marine Geophysics
Theme_Keyword: Bathymetry
Theme_Keyword: Water Depth
Theme_Keyword: Seafloor Topography
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: distributions
Theme_Keyword: bathymetry and elevation
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: single-beam echo sounder
Theme_Keyword: marine geophysics
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: single-beam echo sounder
Theme_Keyword: bathymetry measurement
Theme_Keyword: bathymetry
Theme_Keyword: marine geophysics
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Gorda Ridge
Place_Keyword: Gorda Ridge, North Pacific
Place_Keyword: North Pacific Ocean
Place_Keyword: Northern Pacific Ocean
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.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Gregory K. Miller
Contact_Organization: U.S. Geological Survey
Contact_Position: Physical Scientist
Contact_Address:
Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: (727) 803-8747, ext. 3020
Contact_Electronic_Mail_Address: gmiller@usgs.gov
Data_Set_Credit: Dave Clague (Chief Scientist, USGS Western Region)
Cross_Reference:
Citation_Information:
Originator:
Hittelman, Allen M., Groman, Robert C., Haworth, Richard T., Holcombe, Troy L., McHendrie, Graig, Smith, Stuart M., and Metzger, Dan R.
Publication_Date: 2010
Title: The marine geophysical data exchange format - MGD77 / MGD77T
Publication_Information:
Publication_Place: Boulder, CO
Publisher:
National Geophysical Data Center, National Oceanic and Atmospheric Administration
Other_Citation_Details: 25 p.
Online_Linkage: http://www.ngdc.noaa.gov/mgg/dat/geodas/docs/mgd77.pdf
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
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.
Logical_Consistency_Report:
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.
Completeness_Report:
Start and end date/times of data >Navigation Data (k-2-83-np.070) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198310081811000 198310101810000 >198310101823000 198310101940000 >198310101955000 198310102145000 >198310102200000 198310102350000 >198310110005000 198310110140000 >198310110155000 198310121615000 >198310121630000 198310121735000 >198310121750000 198310122335000 >198310122350000 198310130035000 >198310130100000 198310130100000 >198310130130000 198310130130000 >198310130142000 198310130142000 >198310130155000 198310130200000 >198310130221000 198310130230000 >198310130300000 198310130300000 >198310130330000 198310130330000 >198310130341000 198310130341000 >198310130400000 198310130408000 >198310130430000 198310130430000 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >Bathymetry Data (k-2-83-np.335_070) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198310081930000 198310082008480 >198310082015000 198310082109060 >198310082114300 198310082242420 >198310082249420 198310090002360 >198310090007420 198310090007420 >198310090014000 198310090022540 >198310090030060 198310090049060 >198310090054480 198310090054480 >198310090100000 198310090100000 >198310090105060 198310090105060 >198310090110240 198310090110240 >198310090115420 198310090149360 >198310090154540 198310090154540 >198310090200060 198310090640120 >198310090817360 198310090900420 >198310090906120 198310090948540 >198310090954180 198310091015300 >198310091020360 198310091030060 >198310091039480 198310091039480 >198310091210000 198310091210000 >198310091217240 198310091217240 >198310091224060 198310091224060 >198310091230060 198310091235060 >198310091240420 198310091245180 >198310091251120 198310091251120 >198310091256180 198310091304180 >198310091309480 198310091314060 >198310091321540 198310091321540 >198310091330120 198310091330120 >198310091336300 198310091342480 >198310091348480 198310091348480 >198310091355480 198310091405000 >198310091410480 198310091415540 >198310091421240 198310091421240 >198310091430060 198310091430060 >198310091435180 198310091444300 >198310091450240 198310091519060 >198310091524540 198310091524540 >198310091530120 198310091548360 >198310091554060 198310091554060 >198310091600000 198310091634540 >198310091640480 198310091640480 >198310091646300 198310091651360 >198310091657000 198310091708300 >198310091714000 198310091736360 >198310091742120 198310091813420 >198310091819300 198310091819300 >198310091825060 198310091830060 >198310091836540 198310091845540 >198310091851120 198310091854060 >198310091900060 198310091900060 >198310091905480 198310091910000 >198310091916120 198310091916120 >198310091921300 198310091933540 >198310091941060 198310091941060 >198310091947180 198310092000060 >198310092007180 198310092024120 >198310092030120 198310092030120 >198310092035360 198310092035360 >198310092041480 198310092100060 >198310092110240 198310092110240 >198310092118060 198310092143240 >198310092149120 198310092151420 >198310092156540 198310092200060 >198310092207360 198310092215000 >198310092220300 198310092220300 >198310092226000 198310092254300 >198310092300060 198310092300060 >198310092305120 198310092305120 >198310092313240 198310092335000 >198310092340240 198310092340240 >198310092345300 198310092345300 >198310092351060 198310092351060 >198310092357000 198310100003480 >198310100009120 198310100009120 >198310100014540 198310100030060 >198310100035240 198310100044120 >198310100051480 198310100051480 >198310100100060 198310100100060 >198310100110360 198310100130060 >198310100135540 198310100158000 >198310100207000 198310100215060 >198310100220180 198310100220180 >198310100225300 198310100229420 >198310100235060 198310100235060 >198310100240120 198310100244180 >198310100249420 198310100314540 >198310100320000 198310100325000 >198310100330060 198310100344420 >198310100350540 198310100400120 >198310100407360 198310100407360 >198310100413180 198310100413180 >198310100418420 198310100421540 >198310100427120 198310100430120 >198310100437540 198310100437540 >198310100445000 198310100450000 >198310100456120 198310100512240 >198310100519480 198310100523180 >198310100528480 198310100614540 >198310100620120 198310100624420 >198310100630120 198310100633480 >198310100640120 198310100647480 >198310100652540 198310100703420 >198310100710120 198310100748480 >198310100754180 198310100754180 >198310100800060 198310100800060 >198310100805240 198310100818480 >198310100824240 198310100834540 >198310100842120 198310100842120 >198310100850120 198310100854540 >198310100900060 198310100920000 >198310100925360 198310100945420 >198310100954540 198310100954540 >198310101000000 198310101000000 >198310101006300 198310101121540 >198310101127000 198310101128360 >198310101142060 198310101144480 >198310101200060 198310101217480 >198310101223300 198310101223300 >198310101230060 198310101230060 >198310101238300 198310101238300 >198310101247420 198310101247420 >198310101256000 198310101256000 >198310101303540 198310101303540 >198310101310300 198310101314480 >198310101324420 198310101330060 >198310101336300 198310101346120 >198310101351240 198310101351240 >198310101359540 198310101412060 >198310101417360 198310101455480 >198310101507360 198310101519000 >198310101526240 198310101530000 >198310101536360 198310101537540 >198310101547420 198310101547420 >198310101555540 198310101739300 >198310101745540 198310101745540 >198310101752120 198310101950120 >198310101955180 198310102048540 >198310102055180 198310102100000 >198310102105300 198310102134480 >198310102141000 198310102141000 >198310102146060 198310102146060 >198310102151420 198310102200060 >198310102205420 198310102218420 >198310102224420 198310102224420 >198310102230060 198310102250360 >198310102255480 198310102330060 >198310102335480 198310110015000 >198310110026060 198310110102000 >198310110111420 198310110233180 >198310110246300 198310110303480 >198310110309480 198310110410480 >198310110416240 198310110420480 >198310110426000 198310110439240 >198310110444480 198310110444480 >198310110450360 198310110450360 >198310110456240 198310110504480 >198310110510300 198310110541480 >198310110547060 198310110547060 >198310110553240 198310110616300 >198310110622120 198310110631060 >198310110639000 198310110747240 >198310110752540 198310110809540 >198310110815480 198310110924120 >198310110931240 198310110935060 >198310110941360 198310110951180 >198310110956420 198310111001420 >198310111008060 198310111038000 >198310111043420 198310111048360 >198310111054540 198310111054540 >198310111100000 198310111100000 >198310111106420 198310111106420 >198310111113180 198310111152120 >198310111201060 198310111201060 >198310111210120 198310111233060 >198310111239240 198310111239240 >198310111244360 198310111249060 >198310111254420 198310111309000 >198310111314300 198310111417240 >198310111423480 198310111452540 >198310111501360 198310111511120 >198310111516180 198310111516180 >198310111521300 198310111537300 >198310111542420 198310111545240 >198310111551180 198310111601360 >198310111607480 198310111700060 >198310111705480 198310111851480 >198310111901000 198310111932180 >198310111937540 198310112132480 >198310112140300 198310112247000 >198310112254000 198310112329420 >198310112335060 198310112352360 >198310112358240 198310112358240 >198310120003300 198310120003300 >198310120008420 198310120105000 >198310120110420 198310120150180 >198310120156240 198310120219300 >198310120225120 198310120230120 >198310120235180 198310120457000 >198310120503180 198310120511060 >198310120517240 198310120600000 >198310120605180 198310120605180 >198310120610240 198310120614420 >198310120620120 198310120620120 >198310120625420 198310120754540 >198310120800060 198310120808000 >198310120815000 198310120930000 >198310120935060 198310120944420 >198310120949540 198310120949540 >198310120955120 198310121003540 >198310121009360 198310121018540 >198310121025000 198310121120240 >198310121130060 198310121130060 >198310121135420 198310121339240 >198310121345240 198310121404120 >198310121409480 198310121409480 >198310121415000 198310121420000 >198310121425420 198310121443540 >198310121449060 198310121449060 >198310121454180 198310121536540 >198310121542000 198310121553000 >198310121600000 198310121600000 >198310121606420 198310121606420 >198310121612180 198310121653540 >198310121659060 198310121840120 >198310121845180 198310121845180 >198310121850480 198310121850480 >198310121856000 198310122034000 >198310122039180 198310122048540 >198310122055060 198310122130300 >198310122135480 198310122159480 >198310122206360 198310122223060 >198310122229240 198310122244420 >198310122250120 198310122300000 >198310122305360 198310122305360 >198310122311240 198310122348480 >198310122354120 198310130041300 >198310130046360 198310130107300 >198310130113360 198310130119120 >198310130125120 198310130135120 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Unspecified
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Unspecified
Lineage:
Process_Step:
Process_Description:
Navigation Data >Converted to time format with year at start. > >05/21/85 KAYE USR$DISK:[DRS.DATA.K283NP.N]NEW.070; >USR$DISK:[DRS.REFMT]REFORMAT.EXE;4 >For this file only distance was changed to t55, f8.2 because of the > large distances travelled between fixes. >
Process_Date: 19951206
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey (USGS) , Coastal and Marine Geology (CMG)
Contact_Person: Carolyn H. Degnan
Contact_Position: Geophysicist
Contact_Address:
Address_Type: mailing and physical address
Address:
USGS Pacific Coastal & Marine Science Center, 400 Natural Bridges Drive
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA
Contact_Voice_Telephone: (831) 460-7452
Contact_Facsimile_Telephone: (831) 427-4748
Contact_Electronic_Mail_Address: infobank@octopus.wr.usgs.gov
Process_Step:
Process_Description:
Bathymetry Data >10/31/1998 /tiger/k/k283np/bath/k-2-83-np.335_070 >/bear/programs/edit/automerge/automerge > >Input was... >Converted to time format with year at start. > >11/20/85 BECKIE DUA0:[DATA.K283NP.B]K283NP.335; >DRB0:[DRS.BAT]BATRED.EXE;1 >This file is hand-picked bathymetry in 2-way traveltime. >Sound velocity assumed = 1500M/sec. > > >Input was... >Converted to time format with year at start. > >05/21/85 KAYE USR$DISK:[DRS.DATA.K283NP.N]NEW.070; >USR$DISK:[DRS.REFMT]REFORMAT.EXE;4 >For this file only distance was changed to t55, f8.2 because of the > large distances travelled between fixes. > >time, lat, long, time(sec) to nearest nav fix, data values
Process_Date: 19981031
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey (USGS) , Coastal and Marine Geology (CMG)
Contact_Person: Carolyn H. Degnan
Contact_Position: Geophysicist
Contact_Address:
Address_Type: mailing and physical address
Address:
USGS Pacific Coastal & Marine Science Center, 400 Natural Bridges Drive
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA
Contact_Voice_Telephone: (831) 460-7452
Contact_Facsimile_Telephone: (831) 427-4748
Contact_Electronic_Mail_Address: infobank@octopus.wr.usgs.gov
Process_Step:
Process_Description:
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.
Process_Date: 20120620
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
Contact_Person: Carolyn H. Degnan
Contact_Position: Geophysicist
Contact_Address:
Address_Type: mailing and physical address
Address:
USGS Pacific Coastal & Marine Science Center, 400 Natural Bridges Drive
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA
Contact_Voice_Telephone: (831) 460-7452
Contact_Facsimile_Telephone: (831) 427-4748
Contact_Electronic_Mail_Address: infobank@octopus.wr.usgs.gov
Process_Step:
Process_Description:
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
Process_Date: 20170201
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Alan O. Allwardt
Contact_Position: Contractor -- Information Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-460-7551
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aallwardt@usgs.gov
Process_Step:
Process_Description:
Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.
Process_Date: 20201019
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Gorda Ridge, North Pacific
Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.25722210100002
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: k283np.m77t
Entity_Type_Definition: MGD77T single-beam bathymetry data file for K283NP
Entity_Type_Definition_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.
Attribute:
Attribute_Label: SURVEY_ID
Attribute_Definition: Survey identifier supplied by the contributing organization
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Unrepresentable_Domain:
This identifier varies in format and is supplied by the contributing organization
Attribute:
Attribute_Label: TIMEZONE
Attribute_Definition: Time-zone correction
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Unrepresentable_Domain: In our datasets, no correction was applied. All values equal 0.
Attribute:
Attribute_Label: DATE
Attribute_Definition: YYYYMMDD
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 19831008
Range_Domain_Maximum: 19831013
Attribute_Units_of_Measure: Year, month, day
Attribute:
Attribute_Label: TIME
Attribute_Definition: Time
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 2359
Attribute_Units_of_Measure: hours and decimal minutes
Attribute:
Attribute_Label: LAT
Attribute_Definition: Latitude
Attribute_Definition_Source: World Geodetic System 1984 Geographic Coordinate System
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 40.92783
Range_Domain_Maximum: 42.99800
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: LON
Attribute_Definition: Longitude
Attribute_Definition_Source: World Geodetic System 1984 Geographic Coordinate System
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -127.46100
Range_Domain_Maximum: -124.39167
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: POS_TYPE
Attribute_Definition: Indicates how lat/lon was obtained
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 3
Attribute_Units_of_Measure: 1 = observed fix, 3 = interpolated fix, nil = unspecified
Attribute:
Attribute_Label: BAT_TTIME
Attribute_Definition: Bathymetry, 2-way travel time
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.83
Range_Domain_Maximum: 5.085
Attribute_Units_of_Measure: seconds
Attribute:
Attribute_Label: CORR_DEPTH
Attribute_Definition: Bathymetry, corrected depth
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 616.4
Range_Domain_Maximum: 3797.8
Attribute_Units_of_Measure: decimal meters
Attribute:
Attribute_Label: BAT_CPCO
Attribute_Definition:
Bathymetric Correction code - details the procedure used for determining the sound velocity correction to depth
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 63
Range_Domain_Maximum: 63
Attribute_Units_of_Measure:
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
Attribute:
Attribute_Label: BAT_TYPCO
Attribute_Definition:
Bathymetry type code - indicates how the bathymetric value was obtained
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 3
Attribute_Units_of_Measure:
1 - Observed, 3 - Interpolated (Header Seq. 12), 9 - Unspecified
Overview_Description:
Entity_and_Attribute_Overview:
Bathymetry and navigation data for U.S. Geological Survey bathymetry survey K283NP in MGD77T format.
Entity_and_Attribute_Detail_Citation:
Attributes are obtained from MGD77T data files created from the navigation 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.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: 345 Middlefield Road MS 999
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: (650) 329-5078
Contact_Facsimile_Telephone: (650) 329-5190
Resource_Description: Downloadable Data
Distribution_Liability:
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: MGD77t
Format_Version_Number: 10
Format_Specification: MGD77
Format_Information_Content: tab-delimited ASCII text files.
Transfer_Size: .278
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data are available for download on the World Wide Web (WWW).
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20201019
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Gregory K. Miller
Contact_Organization: U.S. Geological Survey
Contact_Position: Physical Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey, 600 Fourth Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: (727) 803-8747, ext. 3020
Contact_Electronic_Mail_Address: gmiller@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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