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Advanced CORK (ACORK) Data from the Nankai Trough, Ocean Drilling Program (ODP) Holes 808I and 1173B

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            title:  Advanced CORK (ACORK) Data from the Nankai Trough, Ocean Drilling Program (ODP) Holes 808I and 1173B
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                date:  2013-11-18
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                date:  2014-11-18
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                  Anchor:  DOI doi:10.7289/V5KW5CXW
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                individualName:  Dr. Keir Becker
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                individualName:  Dr. Earl Davis
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                name:  Proceedings of the Ocean Drilling Program, Initial Reports
                issueIdentification:  Leg 196
            otherCitationDetails:  Mikada, H., Becker, K., Moore, J.C., Klaus, A., et al., 2002. Proc. ODP, Init. Repts., 196: College Station, TX (Ocean Drilling Program). doi:10.2973/odp.proc.ir.196.2002
        abstract:  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.
        purpose:  scientific research
        credit:  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.
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            maintenanceNote:  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.
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            otherConstraints:  Cite as: Becker, K., Davis, E., et al.(2013): Advanced CORK (ACORK) Data from the Nankai Trough, Ocean Drilling Program (ODP) Holes 808I and 1173B. National Geophysical Data Center, NOAA. doi:10.7289/V5KW5CXW [access date]
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            otherConstraints:  Access to this dataset is unrestricted.
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            otherConstraints:  Use of this dataset is unrestricted.
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            useLimitation:  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).
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            useLimitation:  Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
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            useLimitation:  While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
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                title:  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
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                    date:  2002-12-31
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                    individualName:  H. Mikada
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                    individualName:  Keir Becker
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                citedResponsibleParty:  (CI_ResponsibleParty)
                    individualName:  J.C. Moore
                    role:  (CI_RoleCode) author
                citedResponsibleParty:  (CI_ResponsibleParty)
                    individualName:  Adam Klaus
                    organisationName:  Ocean Drilling Program (ODP)
                    role:  (CI_RoleCode) author
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Ocean Drilling Program (ODP)
                    role:  (CI_RoleCode) publisher
                presentationForm:  (CI_PresentationFormCode) documentHardcopy
                series:  (CI_Series)
                    name:  Initial Reports of the Ocean Drilling Program
                    issueIdentification:  Volume 196 Initial Reports, 30 April 2002, ISSN 1096-2158, doi:10.2973/odp.proc.ir.196.2002
            associationType:  (DS_AssociationTypeCode) crossReference
            initiativeType:  (DS_InitiativeTypeCode) study
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) vector
        spatialResolution:  (MD_Resolution)
            equivalentScale:
        language:
          LanguageCode:  eng; USA
        characterSet:  (MD_CharacterSetCode) utf8
        topicCategory:  (MD_TopicCategoryCode) geoscientificInformation
        topicCategory:  (MD_TopicCategoryCode) oceans
        environmentDescription:  Native Dataset Environment: ASCII files.
        extent:  (EX_Extent)
            description:  Nankai Trough
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  134.9450
                eastBoundLongitude:  135.0247
                southBoundLatitude:  32.2447
                northBoundLatitude:  32.3536
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2002-01-01T00:23:00.000Z
                    endPosition:  2012-12-31T00:23:00.000Z
            verticalElement:  (EX_VerticalExtent)
                minimumValue:
                  Real:  -4791
                maximumValue:
                  Real:  -4675
                verticalCRS:  msl depth in meters
        supplementalInformation:  Caution: Data downloaded prior to September 6, 2013 have incorrect column headers. Details of the ACORK installations are available in the ODP Initial Reports, Vol 196 (Mikada, Becker, Moore, Klaus, et al, 2002). 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.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.
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    contentInfo:  (MI_CoverageDescription)
        attributeDescription:
          RecordType:  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.
        contentType:  (MD_CoverageContentTypeCode) point
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  line
                attributeType:
            descriptor:  sequential number for logging line
            units:
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  date
                attributeType:
            descriptor:  date of logging
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  time
                attributeType:
            descriptor:  time of logging
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  Vb
                attributeType:
            descriptor:  A-Cork logger pressure gauge reading (kPa)
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  S
                attributeType:
            descriptor:  logger monitoring screens (multiple depths below sea floor)
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  ASCII
            version:  UTF-8
            specification:  American Standard Code for Information Interchange (ASCII) text format.
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                positionName:  Marine Geology Data Manager
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  (303) 497-6339
                        facsimile:  (303) 497-6513
                    address:  (CI_Address)
                        deliveryPoint:  325 Broadway, Mail Code E/GC3
                        city:  Boulder
                        administrativeArea:  CO
                        postalCode:  80305-3328
                        country:  USA
                        electronicMailAddress:  geology.info@noaa.gov
                    hoursOfService:  7:30 - 5:00 Mountain
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  free online download
        transferOptions:  (MD_DigitalTransferOptions)
            transferSize:
              Real:  23
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/
                protocol:  WWW:LINK-1.0-http--link
                applicationProfile:  Web Browser
                name: http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/
                description:  Web page of information about the database including links to view and download data and full documentation, and links to related resources.
                function:  (CI_OnLineFunctionCode) information
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/808i/20130906_808i_acork_all_files.tar.gz
                protocol:  WWW:LINK-1.0-http--link
                applicationProfile:  Web Browser
                name: http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/808i/20130906_808i_acork_all_files.tar.gz
                description:  Download all data and documetation for ACORK data from hole 808I as a compressed tar file
                function:  (CI_OnLineFunctionCode) download
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/1173b/20130906_1173b_acork_all_files.tar.gz
                protocol:  WWW:LINK-1.0-http--link
                applicationProfile:  Web Browser
                name: http://www.ngdc.noaa.gov/mgg/geology/data/joides_resolution/cork/1173b/20130906_1173b_acork_all_files.tar.gz
                description:  Download all data and documetation for ACORK data from hole 1173B as a compressed tar file
                function:  (CI_OnLineFunctionCode) download
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
            extent:  #boundingExtent
            levelDescription:  (MD_ScopeDescription)
                dataset:  gov.noaa.ngdc.mgg.geology:G13001
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  Report by contributing scientist.
            result:
        report:  (DQ_CompletenessOmission)
            evaluationMethodDescription:  The ACORK in Hole 1173B was not visited for data downloads in 2003 or 2008.
            result:
        report:  (DQ_ConceptualConsistency)
            measureDescription:  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.
            result:
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Horizontal Positional Accuracy
            measureDescription:
            evaluationMethodDescription:  The horizontal accuracy of data values is approximately .00001 degree of latitude/longitude.
            result:
        report:  (DQ_NonQuantitativeAttributeAccuracy)
            nameOfMeasure:  Reliability
            measureDescription:
            evaluationMethodDescription:  Quality control is performed by originator.
            result:
        lineage:  (LI_Lineage)
            statement:  Data are received intermittently from the investigator.
            processStep:  (LI_ProcessStep)
                description:  Last data received from the investigator.
                dateTime:
                  DateTime:  2013-09-06T00:00:00
            source:  (LI_Source)
                description:  Provider is Dr. Keir Becker, one of the investigators collecting the data.
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) irregular
        dateOfNextUpdate:  2015-05-05
        maintenanceNote:  Metadata Review Date: 2015-05-05
        contact:  (CI_ResponsibleParty)
            individualName:  Carla J. Moore
            organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
            positionName:  Marine Geology Data Manager
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  (303) 497-6339
                    facsimile:  (303) 497-6513
                address:  (CI_Address)
                    deliveryPoint:  325 Broadway, Mail Code E/GC3
                    city:  Boulder
                    administrativeArea:  CO
                    postalCode:  80305-3328
                    country:  USA
                    electronicMailAddress:  geology.info@noaa.gov
                hoursOfService:  7:30 - 5:00 Mountain
            role:  (CI_RoleCode) custodian
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            citation:  (CI_Citation)
                title:  In Situ/Laboratory Instruments > Gauges > BOTTOM PRESSURE GAUGES
                alternateTitle:  BPR
                date:
            identifier:  (MD_Identifier)
                code:  In Situ/Laboratory Instruments > Gauges > BOTTOM PRESSURE GAUGES
            type:
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                authority:  (CI_Citation)
                    title:  NASA/Global Change Master Directory (GCMD) Platform Keywords
                    date:  (CI_Date)
                        date:  2008-02-05
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  NASA
                        positionName:  GCMD User Support Office
                        contactInfo:  (CI_Contact)
                            address:  (CI_Address)
                                electronicMailAddress:  gcmduso@gcmd.gsfc.nasa.gov
                            onlineResource:  (CI_OnlineResource)
                                linkage: http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
                                name:  GCMD Feedback Form
                                description:  Have a Comment for the GCMD?
                                function:  (CI_OnLineFunctionCode) information
                        role:  (CI_RoleCode) custodian
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: http://gcmd.nasa.gov/learn/keyword_list.html
                                name:  GCMD Keywords Page
                                description:  This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions.
                                function:  (CI_OnLineFunctionCode) information
                        role:  (CI_RoleCode) custodian
                code:  In Situ Ocean-based Platforms > SHIPS
            description:  Various ocean-based and lake-based ships, boats, remotely operated vehicles, submersibles, and other unspecified types of platforms
            instrument: