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Metadata Identifier: gov.noaa.ngdc.mgg.geology:G13001

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Advanced CORK (ACORK) Data from the Nankai Trough, Ocean Drilling Program (ODP) Holes 808I and 1173B The ASCII datasets contain pressure values measured at 10-min intervals at the seafloor and several subseafloor depths in two "Advanced CORK" hydrologic observatories installed by ODP in 2001 at Sites 808I and 1173B in the Nankai Trough subduction zone. The datasets were downloaded from logger memory using Japanese research submersibles at irregular intervals of 1-2 years. Currently there are 14 total datasets as follows: downloads at 808I in 2002, 2003, 2004, 2006, 2007, 2008, 2011, and 2012; downloads at 1173B in 2002, 2004, 2006, 2007, 2011, and 2012. They should be of interest to scientists studying seismogenic processes at subduction zones. Please note that much of the data from 808I may be compromised by the lack of seal for the central bore. In addition, several of the valves on both installations were bumped open by a reentry camera frame during deployment, so the first year's installment of data from both sites was compromised until the valves were closed during the 2002 Kaiko operations. There are separate data files for each of the downloads. Each data file has a header of basic metadata that describes the contents of the columns and the respective checks on logger clock drift. Typically, the clock drift was checked just before each download, and the clocks were then reset to UTC immediately after the respective downloads. In three cases, the records of the logger times checks have been misplaced and the drifts computed from other clock checks (consistent from year to year at each site, order 1-2 minutes per year) are reported. Note that the times in the data files have not been corrected for the clock drift. Also, during some of the download operations, there were attempts to calibrate the relative offsets among gauges by opening the seafloor valves to apply seafloor pressure to all the gauges. These are not reflected in the main data files. The installations have battery power for 10-15 years of operation, longer with planned addition of supplemental batteries, so there should be future downloads to add to the archive. There are likely to be future JAMSTEC download opportunities at unpredictable intervals, hopefully every 1-2 years. At approximately 5 Mb/yr, future datasets should be approximately 5-10 Mb in size.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 Advanced CORK (ACORK) Data from the Nankai Trough, Ocean Drilling Program (ODP) Holes 808I and 1173B
  • 2013-11-18
  • 2014-11-18
doi:10.7289/V5KW5CXW
1 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
  • 2008-11-12
1 Mikada, H., Becker, K., Moore, J.C., Klaus, A., et al., 2002. Deformation and Fluid Flow Processes in the Nankai Trough Accretionary Prism: Logging While Drilling and Advanced CORKs, Proc. ODP, Init. Repts., 196: College Station, TX (Ocean Drilling Program). doi:10.2973/odp.proc.ir.196.2002
  • 2002-12-31
1 NASA/GCMD Data Center Keywords
    1 NASA/GCMD Earth Project Keywords
      1 NASA/GCMD Earth Science Keywords
        1 NASA/GCMD Instrument Keywords
          1 NASA/GCMD Location Keywords
            1 NASA/GCMD Platform Keywords
              1 NASA/Global Change Master Directory (GCMD) Platform Keywords NASA/Global Change Master Directory (GCMD) Platform Keywords
              • 2008-02-05
              1 PRESSURE GAUGES
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                CI_Series

                Count Component Name Issue Identification Page
                1 Initial Reports of the Ocean Drilling Program Volume 196 Initial Reports, 30 April 2002, ISSN 1096-2158, doi:10.2973/odp.proc.ir.196.2002
                1 Proceedings of the Ocean Drilling Program, Initial Reports Leg 196
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                CI_ResponsibleParty

                Count Component Individual Organization Position Email Role Linkage
                1 Adam Klaus Ocean Drilling Program (ODP) author
                2 Carla J. Moore - pointOfContact - DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Carla J. Moore DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Marine Geology Data Manager carla.j.moore@noaa.gov pointOfContact
                1 Carla J. Moore - custodian - DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Carla J. Moore DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Marine Geology Data Manager geology.info@noaa.gov custodian
                1 Dr. Earl Davis Geological Survey of Canada EDavis@NRCan.gc.ca originator
                1 Dr. Earl Davis Geological Survey of Canada EDavis@NRCan.gc.ca pointOfContact
                1 Dr. Keir Becker University of Miami, RSMAS kbecker@rsmas.miami.edu originator
                1 Dr. Keir Becker University of Miami, RSMAS kbecker@rsmas.miami.edu pointOfContact
                1 European Petroleum Survey Group http://www.epsg-registry.org/
                1 H. Mikada author
                1 J.C. Moore author
                1 Keir Becker University of Miami, RSMAS author
                1 Marine Geology Data Manager - distributor - DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Marine Geology Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Marine Geology Data Manager geology.info@noaa.gov distributor
                1 GCMD Valids NASA Global Change Master Directory (GCMD) gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/Resources/valids/
                1 GCMD User Support Office NASA Global Change Master Directory (GCMD) User Support Office gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/index.html
                1 National Geophysical Data Center, NOAA publisher
                1 Ocean Drilling Program (ODP) publisher
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                CI_OnlineResource

                Count Component Linkage Name Description Function
                1 No Title http://gcmd.nasa.gov/Resources/valids/ NASA Global Change Master Directory (GCMD) Keyword Page This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. download
                1 No Title http://gcmd.nasa.gov/index.html NASA Global Change Master Directory (GCMD) Home Page information
                1 http://www.epsg-registry.org/ European Petroleum Survey Group Geodetic Parameter Dataset Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search
                1 http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/1173b/20130906_1173b_acork_all_files.tar.gz http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/1173b/20130906_1173b_acork_all_files.tar.gz Download all data and documetation for ACORK data from hole 1173B as a compressed tar file download
                1 http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/808i/20130906_808i_acork_all_files.tar.gz http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/808i/20130906_808i_acork_all_files.tar.gz Download all data and documetation for ACORK data from hole 808I as a compressed tar file download
                1 http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/ http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/ Web page of information about the database including links to view and download data and full documentation, and links to related resources. information
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                MD_Identifier or RS_Identifier

                Count Component Code
                1 PRESSURE GAUGES
                1 SHIPS > SHIPS
                1 doi:10.7289/V5KW5CXW
                1 urn:ogc:def:crs:EPSG:4326
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                EX_Extent

                Bounding Box Temporal Extent
                Count Component Description West East North South Start End
                1 Nankai Trough 134.9450 135.0247 32.3536 32.2447 2002-01-01T00:23:00.000Z 2012-12-31T00:23:00.000Z
                msl depth in meters at Xpath: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:extent[1]/gmd:EX_Extent[1]/gmd:verticalElement[1]/gmd:EX_VerticalExtent[1]/gmd:verticalCRS[1]
                Unresolved Xlinks
                #boundingExtent at: /gmi:MI_Metadata/gmd:dataQualityInfo[1]/gmd:DQ_DataQuality[1]/gmd:scope[1]/gmd:DQ_Scope[1]/gmd:extent[1]
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                EX_GeographicBoundingBox

                Count Component West East North South
                1 134.9450 135.0247 32.3536 32.2447
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                EX_TemporalExtent

                Count Component Start End
                1 2002-01-01T00:23:00.000Z 2012-12-31T00:23:00.000Z
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                MD_Format

                Count Component Name Version specification
                1 ASCII UTF-8 American Standard Code for Information Interchange (ASCII) text format.
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                MD_Medium

                none found
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                MD_Constraints

                Count Component Use Limitation
                1 If you utilize the Nankai ACORK data from this site in any publications, please acknowledge support from the Ocean Drilling Program (ODP), Geological Survey of Canada, and the National Science Foundation (NSF grants OCE-0083156 and OCE-0825210), as well as JAMSTEC for submersible support for the data downloads in 2002, 2003, 2004, 2006-2008, 2011, and 2012 (Note that the ACORK in Hole 1173B was not visited for data downloads in 2003 or 2008).
                1 NGDC Copyright Statement Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
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                MD_ReferenceSystem

                Count Component Code Authority Title
                1 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry urn:ogc:def:crs:EPSG:4326 European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
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                MD_GridSpatialRepresentation

                none found
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                MD_Georeferenceable or MI_Georeferenceable

                none found
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                MD_Georectified or MI_Georectified

                none found
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                MD_Dimension

                none found
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                MD_CoverageDescription or MI_CoverageDescription

                Count Component Attribute Description Content Type
                1 There are separate data files for each of the downloads. Each data file has a header of basic metadata that describes the contents of the columns and the respective checks on logger clock drift.
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                MD_Band or MI_Band

                Count Component Identifier Descriptor
                1 line sequential number for logging line
                1 date date of logging
                1 time time of logging
                1 Vb A-Cork logger pressure gauge reading (kPa)
                1 S logger monitoring screens (multiple depths below sea floor)
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                MI_RangeElementDescription

                none found
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                MD_AggregateInformation

                Count Component Title Code Association Type Code
                1 Mikada, H., Becker, K., Moore, J.C., Klaus, A., et al., 2002. Deformation and Fluid Flow Processes in the Nankai Trough Accretionary Prism: Logging While Drilling and Advanced CORKs, Proc. ODP, Init. Repts., 196: College Station, TX (Ocean Drilling Program). doi:10.2973/odp.proc.ir.196.2002 crossReference
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                LE_Source or LI_Source

                Count Component Title Date Description
                1 Unknown Provider is Dr. Keir Becker, one of the investigators collecting the data.
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                LE_ProcessStep or LI_ProcessStep

                Count Component DateTime Description
                1 2013-09-06T00:00:00 Last data received from the investigator.
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                MI_Operation

                none found
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                MI_Platform

                Count Component Code Description
                1 SHIPS > SHIPS SHIPS > SHIPS Various ships
                Unresolved Xlinks
                SHIPS > SHIPS at: /gmi:MI_Metadata/gmi:acquisitionInformation[1]/gmi:MI_AcquisitionInformation[1]/gmi:platform[1]
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                MI_Instrument

                Count Component Code Type Description
                1 PRESSURE GAUGES
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