NOAA Climate Data Record (CDR) of Leaf Area Index (LAI) and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), Version 4 (Version Superseded)

Name: NOAA Climate Data Record (CDR) of Leaf Area Index (LAI) and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), Version 4 (Version Superseded)
Published: 2014-12-31

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    dateStamp: 2023-09-18
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            title: NOAA Climate Data Record (CDR) of Leaf Area Index (LAI) and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), Version 4 (Version Superseded)
            alternateTitle: Leaf Area Index and FAPAR
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                  Anchor: DOI doi:10.7289/V5M043BX
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        abstract: *Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. Users should only use this version for special cases, such as reproducing studies that used this version.* This dataset contains gridded daily Leaf Area Index (LAI) and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) derived from the NOAA Climate Data Record (CDR) of Advanced Very High Resolution Radiometer (AVHRR) Surface Reflectance. The data record spans from 1981 to 10 days before the present using data from eight NOAA polar orbiting satellites: NOAA-7, -9, -11, -14, -16, -17, -18 and -19. The data are projected on a 0.05 degree x 0.05 degree global grid. This dataset is one of the Land Surface CDR products produced by the NASA Goddard Space Flight Center (GSFC) and the University of Maryland (UMD). Improvements made for Version 4 include 1) additional data from NOAA satellites extending the time period, 2) improved geolocation accuracy from use of OLE instead of TLE, 3) center of the grid is used as the reference, and 4) data value of a grid cell is computed as an average of available good observations. The dataset is in the netCDF-4 file format following ACDD and CF Conventions. The dataset is accompanied by algorithm documentation, data flow diagram and source code for the NOAA CDR Program.
        purpose: This dataset provides scientific researchers a high quality Climate Data Record (CDR) of Leaf Area Index (LAI) and the Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) for detecting drought-stressed regions, forecasting agricultural yields, and forestry and crop management. LAI and FAPAR, two biophysical variables, characterize the canopy and photosynthetic activity of plants. The one-sided green leaf area per unit ground surface area describes the LAI data set. The fraction of the incoming solar radiation in the Photosynthetically Active Radiation spectral region that is absorbed by the plants defines the FAPAR data set. The LAI/FAPAR CDR produces a daily product on a 0.05 degree by 0.05 degree grid from 1981 to present derived from Advanced Very High Resolution Radiometer (AVHRR) sensors.
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            keyword: Earth Science > Biosphere > Vegetation > Photosynthetically Active Radiation > Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
            keyword: Earth Science > Biosphere > Vegetation > Vegetation Index > Leaf Area Index (lai)
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            keyword: NOAA-14 > National Oceanic & Atmospheric Administration-14
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            keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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            useLimitation: *Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. Users should only use this version for special cases, such as reproducing studies that used this version.*
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            useLimitation: See the Algorithm Theoretical Basis Document (ATBD) for a description of this dataset's use limitations.
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            useLimitation: The time variable in the data files has values that are too large by one (1) day. See the Technical Note.
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            otherConstraints: See the Use Agreement for this CDR available on the CDR page.
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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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                    aName: float
            descriptor: time (time)
            units: http://example.org/someUnitsDictionary.xml#days%20since%201981-01-01%2000%3A00%3A00
        dimension: (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName: QA
                attributeType:
                  TypeName:
                    aName: short
            descriptor: quality control
        dimension: (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName: FAPAR
                attributeType:
                  TypeName:
                    aName: short
            descriptor: Fraction of Absorbed Photosynthetically Active Radiation (fraction_of_absorbed_photosynthetically_active_radiation)
            units: http://example.org/someUnitsDictionary.xml#1
        dimension: (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName: LAI
                attributeType:
                  TypeName:
                    aName: short
            descriptor: Leaf Area Index (leaf_area_index)
            units: http://example.org/someUnitsDictionary.xml#1
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    distributionInfo: (MD_Distribution)
        distributor: (MD_Distributor)
            distributorContact: (CI_ResponsibleParty)
                organisationName: NOAA National Centers for Environmental Information
                contactInfo: (CI_Contact)
                    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.
                        function: (CI_OnLineFunctionCode) information
                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.
            distributorFormat: (MD_Format)
                name: NetCDF
                version: 4
                specification: The NetCDF data files comply with the Climate and Forecast (CF) Metadata Conventions and the NetCDF Attribute Convention for Dataset Discovery (ACDD).
            distributorTransferOptions: (MD_DigitalTransferOptions)
                onLine: (CI_OnlineResource)
                    linkage: https://doi.org/10.7289/V5M043BX
                    protocol: HTTPS
                    applicationProfile: Landing Page
                    name: NCEI Dataset Landing Page
                    description: Landing page for the dataset.
                    function: (CI_OnLineFunctionCode) information
            distributorTransferOptions: (MD_DigitalTransferOptions)
                onLine: (CI_OnlineResource)
                    linkage: https://www.ncei.noaa.gov/contact
                    protocol: HTTPS
                    applicationProfile: Web Browser
                    name: Contact NCEI
                    description: Contact NCEI for more information and to request access to the archived data. Requests are subject to NCEI order fulfillment constraints.
                    function: (CI_OnLineFunctionCode) offline
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    dataQualityInfo: (DQ_DataQuality)
        scope: (DQ_Scope)
            level: (MD_ScopeCode)
            extent: #boundingExtent
        lineage: (LI_Lineage)
            statement: This dataset was produced by the NASA Goddard Space Flight Center (GSFC) and the University of Maryland (UMD), and is archived at the NOAA National Centers for Environmental Information (NCEI).
            processStep: (LE_ProcessStep)
                description: For a description of the processing steps, see the Algorithm Theoretical Basis Document and the Data Flow Diagram for this dataset.
                processor: (CI_ResponsibleParty)
                    organisationName: NASA Goddard Space Flight Center
                    role: (CI_RoleCode) processor
                processor: (CI_ResponsibleParty)
                    organisationName: University of Maryland
                    role: (CI_RoleCode) processor
                source: sd001
                processingInformation: (LE_Processing)
                    identifier: (MD_Identifier)
                        code: CDR Version 4
                    softwareReference: (CI_Citation)
                        title: Leaf Area Index and FAPAR Source Code
                        date: (CI_Date)
                            date: 2014
                            dateType: (CI_DateTypeCode) publication
                        citedResponsibleParty: (CI_ResponsibleParty)
                            organisationName: NOAA National Centers for Environmental Information
                            role: (CI_RoleCode) publisher
                    documentation: (CI_Citation)
                        title: Leaf Area Index and FAPAR Flow Diagram
                        date: (CI_Date)
                            date: 2014
                            dateType: (CI_DateTypeCode) publication
                        citedResponsibleParty: (CI_ResponsibleParty)
                            organisationName: NOAA National Centers for Environmental Information
                            role: (CI_RoleCode) publisher
                    algorithm: (LE_Algorithm)
                        citation: (CI_Citation)
                            title: Climate Algorithm Theoretical Basis Document (C-ATBD)
                            date: (CI_Date)
                                date: 2014
                                dateType: (CI_DateTypeCode) publication
                            citedResponsibleParty: (CI_ResponsibleParty)
                                organisationName: NOAA National Centers for Environmental Information
                                role: (CI_RoleCode) publisher
                        description: See Algorithm Citation
            source: (LE_Source)
                description: (missing)
                sourceCitation: (CI_Citation)
                    title: NOAA Climate Data Record (CDR) of AVHRR Surface Reflectance, Version 4
                    date: (CI_Date)
                        date: 2014-05-21
                        dateType: (CI_DateTypeCode) publication
                    citedResponsibleParty: (CI_ResponsibleParty)
                        organisationName: NOAA National Centers for Environmental Information
                        role: (CI_RoleCode) publisher
                    citedResponsibleParty: (CI_ResponsibleParty)
                        organisationName: (missing)
                        contactInfo: (CI_Contact)
                            onlineResource: (CI_OnlineResource)
                                linkage: https://doi.org/10.7289/V5TM782M
                                protocol: HTTPS
                                applicationProfile: Web Browser
                                name: NCEI landing page for AVHRR Surface Reflectance, Version 4
                                description: Source dataset landing page.
                                function: (CI_OnLineFunctionCode) information
                        role: (missing)
                sourceStep: ps001
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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
                    role: (CI_RoleCode) author
                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:
                  Record:
                    CodeListValue: intermediate
                value:
                  Record:
                    CodeListValue: minimal
                value:
                  Record:
                    CodeListValue: minimal
                value:
                  Record:
                    CodeListValue: advanced
                value:
                  Record:
                    CodeListValue: intermediate
                value:
                  Record:
                    CodeListValue: advanced
                value:
                  Record:
                    CodeListValue: intermediate
                value:
                  Record:
                    CodeListValue: advanced
                value:
                  Record:
                    CodeListValue: advanced
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    metadataMaintenance: (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote: Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.

NOAA Climate Data Record (CDR) of Leaf Area Index (LAI) and Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), Version 4 (Version Superseded)

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