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NOAA Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE), Version 1


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                electronicMailAddress:  ncei.info@noaa.gov
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    dateStamp:  2023-08-10
    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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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  NOAA Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE), Version 1
            alternateTitle:  Snow Cover Extent (Northern Hemisphere)
            date:  (CI_Date)
                date:  2012-01-01
                dateType:  (CI_DateTypeCode) publication
            edition:  v01r01
            identifier:  (MD_Identifier)
                code:
                  Anchor:  DOI doi:10.7289/V5N014G9
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                code:  NCEI DSI 3653_01
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                code:  gov.noaa.ncdc:C00756
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                individualName:  Robinson, David A.
                organisationName:  RUTGERS/CLIMATE/GSL > Global Snow Lab, Climate Lab, Rutgers University
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                individualName:  Robinson, David A.
                organisationName:  RUTGERS/CLIMATE/GSL > Global Snow Lab, Climate Lab, Rutgers University
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                individualName:  Estilow, Thomas W.
                organisationName:  RUTGERS/CLIMATE/GSL > Global Snow Lab, Climate Lab, Rutgers University
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                individualName:  Estilow, Thomas W.
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        abstract:  This NOAA Climate Data Record (CDR) is a record for the Northern Hemisphere (NH) Snow Cover Extent (SCE) spanning from October 4, 1966 to present, updated monthly after the 10th of each month. Data prior to June 1999 in the NH SCE CDR are based on satellite-derived maps of NH SCE produced weekly by trained NOAA meteorologists. In June 1999 weekly NOAA NH SCE maps ceased production, and were replaced by daily SCE output from the Interactive Multisensor Snow and Ice Mapping System (IMS). The weekly SCE maps are digitized to an 88x88 (cells) Cartesian grid laid over a NH polar stereographic projection. Each grid cell in the NH SCE CDR has a binary value, indicating snow covered or snow free. The NH SCE CDR has been used in international assessments of climate variability and change, and in investigations regarding the role of snow cover in the climate system. Mapping accuracy is such that this product is considered suitable for continental-scale climate studies. The data are updated monthly in netCDF file format with variables including SCE and National Meteorological Center (NMC) grid (88x88 cell) coordinates.
        purpose:  This dataset provides advanced scientific researchers a high quality Climate Data Record (CDR) of Upper Atmospheric Layer Temperatures.
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            otherConstraints:  Cite as: Robinson, David A.; Estilow, Thomas W.; and NOAA CDR Program (2012): NOAA Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE), Version 1. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5N014G9 [access date].
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            otherConstraints:  Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
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            otherConstraints:  Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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                title:  Data Stewardship Maturity Report for NOAA Climate Data Record (CDR) of Northern Hemisphere Snow Cover Extent (SCE), Version 1
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                title:  Northern Hemisphere spring snow cover variability and change over 1922-2010 including an assessment of uncertainty
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                    date:  2011-01-01
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                edition:  The Cryosphere, 5, 219-229, 2011
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                title:  A long-term Northern Hemisphere snow cover extent data record for climate studies and monitoring
                date:  (CI_Date)
                    date:  2015
                    dateType:  (CI_DateTypeCode) publication
                edition:  Earth Syst. Sci. Data, 7, 137-142, 2015
                identifier:  (MD_Identifier)
                    code:  doi.org/10.5194/essd-7-137-2015
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                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://doi.org/10.5194/essd-7-137-2015
                            applicationProfile:  Web Browser
                            name:  A long-term Northern Hemisphere snow cover extent data record for climate studies and monitoring
                            description:  Landing page for paper.
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                    role: (missing)
            associationType:  (DS_AssociationTypeCode) crossReference
            initiativeType:  (DS_InitiativeTypeCode) sciencePaper
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) grid
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) climatologyMeteorologyAtmosphere
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            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -180
                eastBoundLongitude:  180
                southBoundLatitude:  -1
                northBoundLatitude:  89
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1966-10-04
                    endPosition:
                    timeInterval:  1
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    contentInfo:  (MD_ImageDescription)
        attributeDescription: (inapplicable)
        contentType: (inapplicable)
        dimension:  (MD_Band)
            sequenceIdentifier:
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                attributeType:
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            descriptor: (missing)
        dimension:  (MD_Band)
            sequenceIdentifier:
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                aName:  time
                attributeType:
                  TypeName:
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            descriptor:  time (time)
            units:  http://example.org/someUnitsDictionary.xml#days%20since%201966-10-03
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            sequenceIdentifier:
              MemberName:
                aName:  snow_cover_threshold
                attributeType:
                  TypeName:
                    aName:  float
            descriptor:  threshold for the snow_cover_extent measurement (surface_snow_area_fraction)
            units:  http://example.org/someUnitsDictionary.xml#1
        dimension:  (MD_Band)
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            descriptor:  latitude of cell center in half mesh grid, based on NOAA NMC Limited Area Fine Mesh Grid (latitude)
            units:  http://example.org/someUnitsDictionary.xml#degrees_north
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  longitude
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                aName:  snow_cover_extent
                attributeType:
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                    aName:  byte
            descriptor:  NOAA/NCDC Climate Data Record of snow cover extent (surface_snow_binary_mask)
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            authority:  (CI_Citation)
                title:  Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata - Appendix B, NOAA Data Product Levels
                date:  (CI_Date)
                    date:  2002-10-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  FGDC-STD-012-2002
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                            city:  590 National Center
                            administrativeArea:  Reston, VA 20192
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                citedResponsibleParty:  (CI_ResponsibleParty)
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                            name:  Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata, FGDC-STD-012-2002
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                            function:  (CI_OnLineFunctionCode) information
                    role: (inapplicable)
            code:  Level 3
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    distributionInfo:  (MD_Distribution)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
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                    address:  (CI_Address)
                        electronicMailAddress:  ncei.info@noaa.gov
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://www.ncei.noaa.gov/contact
                        name:  NCEI Contact Information
                        description:  Information for contacts at NCEI.
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                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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                name:  XML
                version: (missing)
            distributorFormat:  (MD_Format)
                name:  HTML
                version: (missing)
            distributorFormat:  (MD_Format)
                name:  NetCDF
                version:  4
            distributorTransferOptions:  (MD_DigitalTransferOptions)
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                    linkage: https://doi.org/10.7289/V5N014G9
                    protocol:  HTTPS
                    applicationProfile:  Landing Page
                    name:  NCEI Dataset Landing Page
                    description:  Landing page for the dataset.
                    function:  (CI_OnLineFunctionCode) information
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                transferSize:
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                onLine:  (CI_OnlineResource)
                    linkage: https://www.ncdc.noaa.gov/cdr/terrestrial/snow-cover-extent-northern-hemisphere
                    protocol:  HTTPS
                    applicationProfile:  Information
                    name:  NOAA CDR page
                    description:  Access to the published CDR product, documentation and source code.
                    function:  (CI_OnLineFunctionCode) information
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ncei.noaa.gov/thredds/catalog/cdr/snowcover/catalog.html
                    protocol:  HTTPS
                    applicationProfile:  THREDDS
                    name:  NCEI THREDDS Catalog
                    description:  THREDDS Data Service for this dataset.
                    function:  (CI_OnLineFunctionCode) download
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ncei.noaa.gov/data/snow-cover-extent/access/
                    protocol:  HTTPS
                    applicationProfile:  Download
                    name:  NCEI Direct Download
                    description:  Direct download of the CDR files.
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                onLine:  (CI_OnlineResource)
                    linkage: https://registry.opendata.aws/noaa-cdr-terrestrial/
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                unitsOfDistribution:  Region: us-east-1
                onLine:  (CI_OnlineResource)
                    linkage: https://noaa-cdr-snow-cover-ext-north-pds.s3.amazonaws.com/index.html
                    protocol:  HTTPS
                    applicationProfile:  Download
                    name:  AWS S3 Explorer (Region: us-east-1)
                    description:  Browse view to explore the S3 bucket.
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            distributorTransferOptions:  (MD_DigitalTransferOptions)
                unitsOfDistribution:  Region: us-east
                onLine:  (CI_OnlineResource)
                    linkage: https://microsoft.github.io/AIforEarthDataSets/data/noaa-cdr.html
                    protocol:  HTTPS
                    applicationProfile:  Information
                    name:  Azure Landing Page (Region: us-east)
                    description:  Information on Microsoft Azure data access.
                    function:  (CI_OnLineFunctionCode) information
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            statement:  The data were produced at Rutgers University and are archived at the NOAA National Climatic Data Center (NCDC).
            processStep:  (LE_ProcessStep)
                description:  For a description of the processing steps, see the Algorithm Theoretical Basis Document and Data Flow Diagram for this dataset.
                dateTime: (missing)
                processor:  (CI_ResponsibleParty)
                    organisationName:  RUTGERS/CLIMATE/GSL > Global Snow Lab, Climate Lab, Rutgers University
                    role:  (CI_RoleCode) processor
                processingInformation:  (LE_Processing)
                    identifier:  (MD_Identifier)
                        code:  CDR Version 1 Revision 1
                    softwareReference:  (CI_Citation)
                        title:  Northern Hemisphere Snow Cover Extent CDR Source Code
                        date:  (CI_Date)
                            date:  2013-08-28
                            dateType:  (CI_DateTypeCode) publication
                        edition:  Version 1 Revision 1
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            organisationName:  NOAA Climate Data Record Program Office
                            role:  (CI_RoleCode) publisher
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            organisationName: (missing)
                            contactInfo:  (CI_Contact)
                                onlineResource:  (CI_OnlineResource)
                                    linkage: https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Snow_Cover_Extent_Northern_Hemisphere/SourceCode.tar.gz
                                    protocol:  HTTPS
                                    applicationProfile:  Web Browser
                                    name:  CDR Source Code
                                    description:  This source code is for reference only. The source code is provided to maintain transparency of the algorithm and processes used in creating the Climate Data Record (CDR). The source code is not intended to be portable to any computer system(s) beyond that of the original CDR producer's environment.
                                    function:  (CI_OnLineFunctionCode) download
                            role: (missing)
                    documentation:  (CI_Citation)
                        title:  Northern Hemisphere Snow Cover Extent CDR Flowchart
                        date:  (CI_Date)
                            date:  2013-08-14
                            dateType:  (CI_DateTypeCode) publication
                        edition:  Version 1 Revision 1
                        identifier:  (MD_Identifier)
                            code:  CDRP-DIA-0205
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            organisationName:  NOAA Climate Data Record Program Office
                            role:  (CI_RoleCode) publisher
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            organisationName: (missing)
                            contactInfo:  (CI_Contact)
                                onlineResource:  (CI_OnlineResource)
                                    linkage: https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Snow_Cover_Extent_Northern_Hemisphere/DataFlowDiagram.pdf
                                    protocol:  HTTPS
                                    applicationProfile:  Web Browser
                                    name:  CDR Data Flow Diagram
                                    description:  Data processing flowchart for the CDR product.
                                    function:  (CI_OnLineFunctionCode) information
                            role: (missing)
                    algorithm:  (LE_Algorithm)
                        citation:  (CI_Citation)
                            title:  Climate Algorithm Theoretical Basis Document for Northern Hemisphere Snow Cover Extent CDR
                            date:  (CI_Date)
                                date:  2013-08-16
                                dateType:  (CI_DateTypeCode) publication
                            edition:  Version 1 Revision 1
                            identifier:  (MD_Identifier)
                                code:  CDRP-ATBD-0156
                            citedResponsibleParty:  (CI_ResponsibleParty)
                                organisationName:  NOAA Climate Data Record Program Office
                                role:  (CI_RoleCode) publisher
                            citedResponsibleParty:  (CI_ResponsibleParty)
                                organisationName: (missing)
                                contactInfo:  (CI_Contact)
                                    onlineResource:  (CI_OnlineResource)
                                        linkage: https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Snow_Cover_Extent_Northern_Hemisphere/AlgorithmDescription.pdf
                                        protocol:  HTTPS
                                        applicationProfile:  Web Browser
                                        name:  CDR Algorithm Description
                                        description:  Algorithm Theoretical Basis Document for the CDR product.
                                        function:  (CI_OnLineFunctionCode) information
                                role: (missing)
                        description:  See Algorithm Citation
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) repository
            levelDescription:  (MD_ScopeDescription)
                other:  NOAA National Centers for Environmental Information
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
                dateTime:
                  DateTime:  2015-04-22T00:00:00
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
            levelDescription:  (MD_ScopeDescription)
                other:  Data Stewardship
        report:  (DQ_ConceptualConsistency)
            nameOfMeasure:  Data Stewardship Maturity Assessment
            measureIdentification:  (MD_Identifier)
                code:  MM-Stew
            measureDescription:  The Data Stewardship Maturity Matrix (DSMM) is a unified framework that defines criteria for each of nine components based on measurable practices, which can be used to apply a progressive, 6-level rating to an individual dataset, representing stewardship maturity stages rated as Not Assessed or Not Available (Level 0), adHoc (Level 1), minimum (Level 2), intermediate (Level 3), advanced (Level 4), and optimal (Level 5).
            evaluationMethodDescription:  Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0.
            evaluationProcedure:  (CI_Citation)
                title:  The Scientific Data Stewardship Maturity Assessment Model Template
                date:  (CI_Date)
                    date:  2016-06-27
                    dateType:  (CI_DateTypeCode) publication
                edition:  NCDC-CICS-SMM_0001_Rev.1 v4.0 06/27/2016
                identifier:  (MD_Identifier)
                    code:
                      Anchor:  DOI link doi:10.10.6084/m9.figshare.1211954
                citedResponsibleParty:  (CI_ResponsibleParty)
                    individualName:  Peng, Ge
                    organisationName:  CICS-NC/NCEI
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                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://doi.org/10.6084/m9.figshare.1211954
                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  The Scientific Data Stewardship Maturity Assessment Model Template
                            description:  Landing page for quality evaluation procedure.
                            function:  (CI_OnLineFunctionCode) information
                    role: (inapplicable)
            dateTime:
              DateTime:  2016-06-27T00:00:00
            result:  (DQ_QuantitativeResult)
                valueUnit: (inapplicable)
                value:
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                value:
                  Record:
                    CodeListValue:  minimal
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                value:
                  Record:
                    CodeListValue:  intermediate
                value:
                  Record:
                    CodeListValue:  intermediate
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Bulk metadata change applied on 2023-07-06. See version control repository history for metadata change details.