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The NGDC Seafloor Sediment Grain Size Database
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.mgg.geology:G00127
    language:
      LanguageCode:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    parentIdentifier:  gov.noaa.ngdc:Marine_Geology
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  pointOfContact - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    dateStamp:  2015-06-24
    metadataStandardName:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
    metadataStandardVersion:  ISO 19115-2:2009(E)
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    spatialRepresentationInfo:  https://www.ngdc.noaa.gov/docucomp/b949647a-48e0-47ed-99ed-480a996ec174
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    referenceSystemInfo:  European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  The NGDC Seafloor Sediment Grain Size Database
            date:  (CI_Date)
                date:  1976-12-31
                dateType:  (CI_DateTypeCode) publication
            date:  (CI_Date)
                date:  2000-12-31
                dateType:  (CI_DateTypeCode) revision
            edition:  First
            identifier:  (MD_Identifier)
                code:
                  Anchor:  DOI doi:10.7289/V5G44N6W
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  Multiple Investigators and projects
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  National Geophysical Data Center
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  National Centers for Environmental Information, NOAA
                role:  (CI_RoleCode) publisher
            presentationForm:  (CI_PresentationFormCode) tableDigital
            series:  (CI_Series)
                name:  Marine Geology and Geophysics (MGG)
                issueIdentification:  multiple
        abstract:  The NGDC (now NCEI) Seafloor Sediment Grain Size Database contains particle size data for over 17,000 seafloor samples worldwide. The file was begun by NGDC in 1976 in response to a need by the Outer Continental Shelf Environmental Assessment Program (OCSEAP) for a detailed, digital file of textural analyses. Data are from OCSEAP studies, academic institutions, environmental baseline studies conducted under contract to the Bureau of Land Management under the Outer Continental Shelf (OCS) Program, and from laboratory reports generated by the U.S. Naval Oceanographic Office. Data include collecting institution, ship, cruise, sample id, latitude/longitude, date of collection, water depth, sampling device, method of analysis, sample weight, sampled interval, raw weight percentages of sediment, within a given phi range. Some samples also have percentages of total gravel, sand, silt, clay, and statistical measurements such as mean, median, skewness, kurtosis, and standard deviation of grain size.
        purpose:  environmental research
        credit:  US Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), NOAA Satellite and Information Service (NESDIS), National Centers for Environmental Information (NCEI), and World Data Service for Geophysics, Boulder.
        status:  (MD_ProgressCode) completed
        pointOfContact:  pointOfContact - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) notPlanned
            maintenanceNote:  Although no updates are planned, project-specific updates are possible if resources become available.
        graphicOverview:  (MD_BrowseGraphic)
            fileName: http://www.ngdc.noaa.gov/mgg/image/placer.jpg
            fileDescription:  image of a placer deposit
            fileType:  JPEG
        descriptiveKeywords:  (MD_Keywords)
            keyword:  OCS > Outer Continental Shelf Program
            keyword:  OCSEAP > Outer Continental Shelf Environmental Assessment Project
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  NASA/GCMD Project Keywords
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Scientific archives
            keyword:  Electronic records
            keyword:  Oceanography
            keyword:  Ocean bottom
            keyword:  Geology
            keyword:  Submarine geology
            keyword:  Marine sediments
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  Library of Congress Subject Headings
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Marine geology
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  SeaDataNet Common Vocabularies
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Sea-floor characteristics
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  USGS Science Topics
        descriptiveKeywords:  (MD_Keywords)
            keyword:  EARTH SCIENCE > Oceans > Marine Sediments
            keyword:  EARTH SCIENCE > Paleoclimate > Ocean/Lake Records > Sediments
            keyword:  EARTH SCIENCE > Solid Earth > Sediments
            keyword:  EARTH SCIENCE > Oceans > Marine Sediments > Sedimentary Textures
            keyword:  EARTH SCIENCE > Oceans > Marine Environment Monitoring
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  NASA/GCMD Science Keywords
        descriptiveKeywords:  (MD_Keywords)
            keyword:  In Situ Ocean-based Platforms > SHIPS
            type:  (MD_KeywordTypeCode) platform
            thesaurusName:  NASA/GCMD Platform Keywords
        descriptiveKeywords:  (MD_Keywords)
            keyword:  In Situ/Laboratory Instruments > Corers > CORING DEVICES
            keyword:  In Situ/Laboratory Instruments > Samplers > Grabbers/Traps/Collectors > GRAB SAMPLERS
            keyword:  In Situ/Laboratory Instruments > Corers > SEDIMENT CORERS
            type:  (MD_KeywordTypeCode) instrument
            thesaurusName:  NASA/GCMD Instrument Keywords
        descriptiveKeywords:  (MD_Keywords)
            keyword:  CIESIN > Environmental Protection > Environmental Monitoring
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  CIESIN Keyword Thesaurus
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  WDC/GEOPHYSICS, BOULDER > World Data Center for Geophysics, Boulder
            keyword:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            type:  (MD_KeywordTypeCode) dataCenter
            thesaurusName:  NASA/GCMD Data Center Keywords
        descriptiveKeywords:  (MD_Keywords)
            keyword:  GEOGRAPHIC REGION > GLOBAL OCEAN
            keyword:  VERTICAL LOCATION > SEA FLOOR
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  NASA/GCMD Location Keywords
        resourceConstraints:  (MD_LegalConstraints)
            useLimitation:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite as: National Geophysical Data Center (1976): The NGDC Seafloor Sediment Grain Size Database. National Geophysical Data Center, NOAA, doi:10.7289/V5G44N6W [date of access]
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Access to this dataset is unrestricted.
        resourceConstraints:  (MD_Constraints)
            useLimitation:  Please cite the originator of the data set, the date downloaded, and the National Centers for Environmental Information, NOAA, as the source of the data.
        resourceConstraints:  (MD_Constraints)
            useLimitation:  Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  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.
        resourceConstraints:  (MD_SecurityConstraints)
            classification:  (MD_ClassificationCode) unclassified
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  NCEI Marine Geology Inventory
                date:  (CI_Date)
                    date:  1976-12-31
                    dateType:  (CI_DateTypeCode)
                identifier:  (MD_Identifier)
                    code:
                      Anchor:  Inventory NCEI Marine Geology Inventory
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  National Centers for Environmental Information, NOAA
                    role:  (CI_RoleCode) author
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage:  https://www.ngdc.noaa.gov/idb/struts/form?dataset=101477&search_look=1&display_look=1&le_0=90&ge_0=-90&ge_1=-180&le_1=180
                            protocol:  WWW:LINK-1.0-http--link
                            applicationProfile:  Web Browser
                            name:  NCEI Marine Geology Inventory
                            description:  Text interface to discover data sets containing grain size analyses in the original 073 format archived by NCEI, and also grain size data not in the 073 format/grain size database.
                            function:  (CI_OnLineFunctionCode) search
                    role: (inapplicable)
            aggregateDataSetIdentifier:  (MD_Identifier)
                code:
                  Anchor:  Inventory NCEI Marine Geology Inventory
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
            initiativeType:  (DS_InitiativeTypeCode) collection
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  National Geophysical Data Center (1976): The NGDC Seafloor Sediment Geotechnical Properties Database. National Geophysical Data Center, NOAA. doi:10.7289/V56Q1V55
                date:  (CI_Date)
                    date:  1976-12-31
                    dateType:  (CI_DateTypeCode)
                identifier:  (MD_Identifier)
                    code:
                      Anchor:  DOI doi:10.7289/V56Q1V55
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  National Geophysical Data Center
                    role:  (CI_RoleCode) author
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage:  https://dx.doi.org/10.7289/V56Q1V55
                            protocol:  WWW:LINK-1.0-http--link
                            applicationProfile:  Web Browser
                            name:  doi:10.7289/V56Q1V55
                            description:  This data set contains related data and information.
                            function:  (CI_OnLineFunctionCode) information
                    role: (inapplicable)
            aggregateDataSetIdentifier:  (MD_Identifier)
                code:
                  Anchor:  DOI doi:10.7289/V56Q1V55
            associationType:  (DS_AssociationTypeCode) crossReference
            initiativeType:  (DS_InitiativeTypeCode) project
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title: (inapplicable)
                date:  (CI_Date)
                    date:  2015-06-24
                    dateType:  (CI_DateTypeCode)
                identifier:  (MD_Identifier)
                    code:
                      Anchor:  Archive Archive
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  National Centers for Environmental Information, NOAA
                    role:  (CI_RoleCode) resourceProvider
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.ngdc.noaa.gov/docucomp/page?xml=NOAA/NESDIS/NGDC/Collection/iso/xml/Marine_Geology.xml&view=getDataView&header=none
                            protocol:  WWW:LINK-1.0-http--link
                            applicationProfile:  Web Browser
                            name:  Parent Archive
                            description:  Information about the Marine Geology Data Archive at NCEI.
                            function:  (CI_OnLineFunctionCode) information
                    role: (inapplicable)
            aggregateDataSetIdentifier:  (MD_Identifier)
                code:
                  Anchor:  Archive Archive
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
            initiativeType:  (DS_InitiativeTypeCode) collection
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) vector
        spatialResolution: (missing)  (MD_Resolution)
            equivalentScale:
        language:
          LanguageCode:  eng; USA
        characterSet:  (MD_CharacterSetCode) UTF8
        topicCategory:  (MD_TopicCategoryCode) geoscientificInformation
        topicCategory:  (MD_TopicCategoryCode) oceans
        environmentDescription:  Native Dataset Environment: ASCII text
        extent:  (EX_Extent)
            description:  Global Ocean
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -180
                eastBoundLongitude:  180
                southBoundLatitude:  -78.3667
                northBoundLatitude:  81.0705
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    description:  Sampling Dates
                    beginPosition:  1956-01-01
                    endPosition:  2000-12-31
            verticalElement:  (EX_VerticalExtent)
                minimumValue:
                  Real:  -2000
                maximumValue:
                  Real:  0
                verticalCRS: (missing)
        supplementalInformation:  Quality control: Missing data or gross percentage errors are noted. Processing: Data sources include contractors for the Outer Continental Shelf Environmental Assessment Program; contractors for the Outer Continental Shelf Office, Bureau of Land Management; and project managers from academic institutions.
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    contentInfo:  point
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    contentInfo:  physicalMeasurement
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    contentInfo:  physicalMeasurement
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    contentInfo:  (MD_FeatureCatalogueDescription)
        complianceCode:  false
        includedWithDataset:  true
        featureTypes:
          LocalName:
        featureCatalogueCitation:  (CI_Citation)
            title:  Format 073
            date:  (CI_Date)
                date:  1976-12-31
                dateType:  (CI_DateTypeCode) creation
            date:  (CI_Date)
                date:  1980-12-31
                dateType:  (CI_DateTypeCode) revision
            otherCitationDetails:  Entities and attributes are completely described in a text file accompanying the datasets on download.
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  Text
            version:  UTF-8
            specification:  American Standard Code for Information Interchange (ASCII) text format.
        distributionFormat:  (MD_Format)
            name:  tar.gz
            version:  unknown
            specification:  compressed Tape ARchive file
        distributor:  (MD_Distributor)
            distributorContact:  Marine Geology Data Manager - distributor - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  free online download
        transferOptions:  (MD_DigitalTransferOptions)
            transferSize:
              Real:  3
            onLine:  (CI_OnlineResource)
                linkage:  https://dx.doi.org/10.7289/V5G44N6W
                protocol:  WWW:LINK-1.0-http--link
                applicationProfile:  Web Browser
                name:  Publisher's landing page
                description:  How to cite this data set (doi:10.7289/V5G44N6W), all access options, and complete documentation.
                function:  (CI_OnLineFunctionCode) information
            onLine:  (CI_OnlineResource)
                linkage:  https://www.ngdc.noaa.gov/mgg_grainsize/index.jsp
                protocol:  WWW:LINK-1.0-http--link
                applicationProfile:  Web Browser
                name:  Web forms interface
                description:  Text interface to subset and download data in delimited form.
                function:  (CI_OnLineFunctionCode) search
            onLine:  (CI_OnlineResource)
                linkage:  https://www.ngdc.noaa.gov/mgg/geology/data/g00127/
                protocol:  WWW:LINK-1.0-http--link
                applicationProfile:  Web Browser
                name:  Data files and documentation
                description:  Download entire data set as delimited ASCII text (no search/subset), one file each for cruise, sample, interval, and phi-level information.
                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:G00127
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Horizontal Positional Accuracy
            measureDescription: (unknown)
            evaluationMethodDescription:  The horizontal accuracy of data values is approximately .001 degree of latitude/longitude.
            result: (unknown)
        report:  (DQ_QuantitativeAttributeAccuracy)
            nameOfMeasure:  Reliability
            measureDescription: (unknown)
            evaluationMethodDescription:  Quality control: Missing data or gross percentage errors are noted. Processing: Data sources include contractors for the Outer Continental Shelf Environmental Assessment Program; contractors for the Outer Continental Shelf Office, Bureau of Land Management; and project managers from academic institutions.
            result: (unknown)
        lineage:  (LI_Lineage)
            statement:  Lineage varies by data source. Most data were contributed originally to NOAA's former National Oceanographic Data Center (NODC) as part of larger environmental studies. NODC forwarded the grain size portion of these studies to NGDC for distribution and archive, and in many cases maintained a copy for the NODC archive. Relatively few data sets were contributed directly to the former National Geophysical Data Center (NGDC). Some data were coded by NGDC from paper reports, especially unpublished laboratory item reports from the U.S. Naval Oceanographic Office (NAVOCEANO). Some data were translated from other formats, including the historic 003 Intergovernmental Oceanographic Commission (IOC) format, and the University of Washington format.
            processStep:  (LI_ProcessStep)
                description:  Last data processed into database
                dateTime:
                  DateTime:  2000-12-31T00:00:00
            source:  (LI_Source)
                description:  multiple investigators, institutions, and funding sources, many under contracts of the Bureau of Land Management Outer Continental Shelf Program (BLM/OCS) or Outer Continental Shelf Environmental Assessment Program (OCSEAP). Several projects/programs were wholly or partially funded by NOAA.
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) notPlanned
        dateOfNextUpdate:  2016-06-24
        maintenanceNote:  Metadata Review Date: 2016-06-24
        contact:  custodian - DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  In Situ/Laboratory Instruments
        platform:  In Situ Ocean-based Platforms > SHIPS