f384nc.m77t - MGD77 data file for Geophysical data for field activity F-3-84-NC in Northern California from 06/15/1984 to 07/08/1984

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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:
f384nc.m77t - MGD77 data file for Geophysical data for field activity F-3-84-NC in Northern California from 06/15/1984 to 07/08/1984
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 and magnetics data along with DGPS navigation data was collected as part of field activity F-3-84-NC in Northern California from 06/15/1984 to 07/08/1984, http://walrus.wr.usgs.gov/infobank/f/f384nc/html/f-3-84-nc.meta.html. The geophysical source was a Knudsen 12 kHz 320B/R echosounder. 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/f/f384nc/html/f-3-84-nc.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: 19840615
Ending_Date: 19840708
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -129.34190
East_Bounding_Coordinate: -123.50920
North_Bounding_Coordinate: 43.04180
South_Bounding_Coordinate: 38.22030
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:d4b30a18-e34c-433a-b9c5-0d390eb74a46
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: Marine Magnetic Field
Theme_Keyword: Magnetic Anomalies
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: magnetic field observations
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: magnetometer measurement
Theme_Keyword: marine geophysics
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: CA
Place_Keyword: North Pacific Ocean
Place_Keyword: Northern California
Place_Keyword: Northern Pacific Ocean
Place_Keyword: Pacific Northwest EEZ
Place_Keyword: USA
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 Cacchione (Chief Scientist, USGS Western Region); Dave Drake (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 (f-3-84-nc.070) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198406160002000 198406201832000 >198406201838000 198407081500000 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >Magnetics Data (f-3-84-nc.220_070) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198406160510000 198406201802000 >198406201838000 198406210642000 >198406211210000 198406212220000 >198406212250000 198406261740000 >198406261746000 198406280850000 >198406281108000 198406301334000 >198406301440000 198406302350000 >198407010230000 198407021202000 >198407021348000 198407022208000 >198407041524000 198407081438000 >198408071300000 198408081858000 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >Bathymetry Data (f-3-84-nc.334_070) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198406160002000 198406161612000 >198406161618000 198406171736000 >198406171742000 198406180812000 >198406180830000 198406181906000 >198406181912000 198406190306000 >198406190312000 198406190736000 >198406190742000 198406191148000 >198406191200000 198406191630000 >198406191636000 198406192242000 >198406192300000 198406200548000 >198406200554000 198406200930000 >198406200936000 198406201042000 >198406201112000 198406210100000 >198406210106000 198406210336000 >198406210342000 198406212024000 >198406212036000 198406212106000 >198406212118000 198406212212000 >198406212224000 198406220524000 >198406220530000 198406221818000 >198406221824000 198406222354000 >198406230006000 198406240200000 >198406240212000 198407031906000 >198407041418000 198407081448000 >198408071300000 198408081858000 >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. > >03/18/85 KAYE USR$DISK:[DRS.DATA.F3.N]NEW.070; >USR$DISK:[DRS.REFMT]REFORMAT.EXE;3 >
Process_Date: 19990416
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:
Magnetics Data >07/23/2012 carolyn f-3-84-nc.220_070 > >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... >infobank/f/f384nc/mag/f-3-84-nc.200_070 >time/data style, multi-record, in caps, without tabs >temporal data >reformatted f-3-84-nc.230_070 to isolate observed value for reprocessing > >10/31/1998 /lion/f/f384nc/mag/f-3-84-nc.230_070 >/bear/programs/edit/automerge/automerge > >Converted to time format with year at start. > >03/20/85 CAROLYN USR$DISK:[DRS.DATA.F3.M]F384NC.230; >USR$DISK:[DRS.REFMT]REFORMAT.EXE;3 >data processed elsewhere, given to us by Jim Gardner >reformatted from tape, values originally without decimal points > >Converted to time format with year at start. > >03/18/85 KAYE USR$DISK:[DRS.DATA.F3.N]NEW.070; >USR$DISK:[DRS.REFMT]REFORMAT.EXE;3 > >time, lat, long, time(sec) to nearest nav fix, data values
Process_Date: 20120723
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 /lion/f/f384nc/bath/f-3-84-nc.334_070 >/bear/programs/edit/automerge/automerge > >Input was... >Converted to time format with year at start. > >05/27/87 CAROLYN DRS$DATA:[F384NC.B]F384NC.334; >DUA0:[DRS.BAT]BATRED.EXE;1 >extracted edited field from file EMaple read off of JCoddington's tape >back-calculated travel time from depth >file originally went from 168/0000 to 190/1448, but >220/1300 - 221/1858 was added from F484WO > >05/27/87 EDM DRS$DATA:[F384NC.B]TEMP.330; >DUA0:[DRS.EDIT]REFARN.EXE; > >Input was... >Converted to time format with year at start. > >03/18/85 KAYE USR$DISK:[DRS.DATA.F3.N]NEW.070; >USR$DISK:[DRS.REFMT]REFORMAT.EXE;3 > >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: Northern California
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: f384nc.m77t
Entity_Type_Definition: MGD77T single-beam bathymetry data file for F384NC
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: 19840616
Range_Domain_Maximum: 19840808
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: 38.22030
Range_Domain_Maximum: 43.04180
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: -129.34190
Range_Domain_Maximum: -123.50920
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: 0.082
Range_Domain_Maximum: 6.37
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: 61.5
Range_Domain_Maximum: 4780.5
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
Attribute:
Attribute_Label: MAG_TOT
Attribute_Definition: Magnetics total field - 1st sensor
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 49820
Range_Domain_Maximum: 53354
Attribute_Units_of_Measure: gammas
Attribute:
Attribute_Label: MAG_RES
Attribute_Definition: Magnetics residual field field
Attribute_Definition_Source: NGDC
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: --464
Range_Domain_Maximum: 692
Attribute_Units_of_Measure: gammas
Overview_Description:
Entity_and_Attribute_Overview:
Bathymetry, magnetic, and navigation data for U.S. Geological Survey bathymetry survey F384NC in MGD77T format.
Entity_and_Attribute_Detail_Citation:
Attributes are obtained from MGD77T data files created from the navigation gravity, magnetic, 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: 2.4
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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