NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 2.0 (Version Superseded)


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        citation:  (CI_Citation)
            title:  NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 2.0 (Version Superseded)
            alternateTitle:  AVHRR Aerosol Optical Thickness
            alternateTitle:  AVHRR AOT
            date:  (CI_Date)
                date:  2014-05-19
                dateType:  (CI_DateTypeCode) publication
            edition:  2.0
            identifier:  (MD_Identifier)
                code:
                  Anchor:  DOI doi:10.7289/V5SB43PD
            identifier:  (MD_Identifier)
                code:  NCEI DSI 3627_02
            identifier:  (MD_Identifier)
                code:  gov.noaa.ncdc:C00858
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                individualName:  Xuepeng Zhao
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                individualName:  Xuepeng Zhao
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                individualName:  Pui Chan
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        abstract:  **Version 2 of the dataset has been superseded by a newer version. Users should not use version 2 except in rare cases (e.g., when reproducing previous studies that used version 2).**This NOAA Climate Data Record (CDR) of Aerosol Optical Thickness (AOT) is derived from data taken over global oceans from the PATMOS-x AVHRR level-2b channel 1 (0.63 micron) orbital clear-sky radiance. The retrieval is performed for selected spatial (8-km) and temporal (1 time per day) resolution in cloud free condition during daytime over global oceans. The AVHRR AOT CDR version 2 extends from 1981 to 2009 and includes both daily and monthly data in an equal angle grid (0.1x0.1 degree). Version 2 has improved cloud screening and data processing from version 1. Due to the relatively large uncertainties associated with surface reflectance over water glint area and land surface as well as limited AVHRR retrieval channels, the current algorithm only performs retrieval over non-glint water surface (specifically at the anti-solar side of the orbit and viewing angle is larger than 40 degree away from the specular ray).
        purpose:  This dataset provides a high quality Climate Data Record (CDR) of aerosol optical thickness (AOT). As a high quality climate data record, this dataset can be used for climate model evaluation as well as air pollution and climate assessment.
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            fileDescription:  AVHRR AOT monthly file example
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            keyword:  50 km - < 100 km or approximately .5 degree - < 1 degree
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        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Version 2 of the dataset has been superseded by a newer version. Users should not use version 2 except in rare cases (e.g., when reproducing previous studies that used version 2).
        resourceConstraints:  (MD_Constraints)
            useLimitation:  For a complete description of use limitations for this CDR, see Section 6, Assumptions and Limitations, in the respective Algorithm Theoretical Basis Document.
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            otherConstraints:  Cite as: Xuepeng Zhao, Pui Chan, and NOAA CDR Program (2014): NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 2.0. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5SB43PD [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:  A global survey of the effect of cloud contamination on the aerosol optical thickness and its long-term trend derived from operational AVHRR satellite observations
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                    date:  2013-04-03
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                            linkage: https://doi.org/DOI:10.1002/jgrd.50278
                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  A global survey of the effect of cloud contamination on the aerosol optical thickness and its long-term trend derived from operational AVHRR satellite observations (Science Paper)
                            description:  Zhao, T. X.-P., P. K. Chan, and A. K. Heidinger (2013), A global survey of the effect of cloud contamination on the aerosol optical thickness and its long-term trend derived from operational AVHRR satellite observations, J. Geophys. Res. Atmos., 118, 2849-2857, doi:10.1002/jgrd.50278.
                            function:  (CI_OnLineFunctionCode) information
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                code:  Journal of Geophysical Research. DOI: 10.1002/jgrd.50278
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                title:  Long-Term Aerosol Climate Data Record Derived from Operational AVHRR Satellite Observations
                date:  (CI_Date)
                    date:  2013
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Dataset Papers in Geosciences
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                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (missing)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://doi.org/10.7167/2013/140791
                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  Long-Term Aerosol Climate Data Record Derived from Operational AVHRR Satellite Observations (Science Paper)
                            description:  P. K. Chan, X.-P. Zhao, and A. K. Heidinger, "Long-Term Aerosol Climate Data Record Derived from Operational AVHRR Satellite Observations," Dataset Papers in Geosciences, vol. 2013, Article ID 140791, 5 pages, 2013. doi:10.7167/2013/140791
                            function:  (CI_OnLineFunctionCode) information
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                code:  Dataset Papers in Geosciences. DOI: 10.7167/2013/140791
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                title:  Aerosol Optical Thickness CDR Overview
                date: (missing)
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
                    role:  (CI_RoleCode) publisher
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (missing)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www1.ncdc.noaa.gov/pub/data/sds/cdr/flyers/CDR_Flyer_Aerosol_Optical_Thickness.pdf
                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  Overview of the AVHRR Aerosol Optical Thickness CDR
                            description:  A brief description of the dataset is available.
                            function:  (CI_OnLineFunctionCode) information
                    role: (missing)
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
            initiativeType:  (DS_InitiativeTypeCode) collection
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness (AOT) over Global Oceans, Version 3.0
                date: (missing)
                citedResponsibleParty:  (CI_ResponsibleParty)
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                    contactInfo:  (CI_Contact)
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                            linkage: https://doi.org/10.7289/V5BZ642P
                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness (AOT) over Global Oceans, Version 3.0 Landing Page
                            description:  **Current Version** For the most up-to-date dataset, please use AVHRR Aerosol Optical Thickness CDR, Version 3.
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            associationType:  (DS_AssociationTypeCode) largerWorkCitation
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                title:  NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 1.0
                date: (missing)
                citedResponsibleParty:  (CI_ResponsibleParty)
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                    role:  (CI_RoleCode) publisher
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (missing)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
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                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 1.0 Landing Page
                            description:  Immediate predecessor to the dataset. Version 1 of the dataset has been superseded by a newer version. Users should not use version 1 except in rare cases (e.g., when reproducing previous studies that used version 1).
                            function:  (CI_OnLineFunctionCode) information
                    role: (missing)
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
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        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) climatologyMeteorologyAtmosphere
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                northBoundLatitude:  90.0
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    description:  ground condition
                    beginPosition:  1981-01-01
                    endPosition:  2009-12-31
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    contentInfo:  (MI_CoverageDescription)
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            units:  http://example.org/someUnitsDictionary.xml#days%20since%201970-01-01%2000%3A00%3A00
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                attributeType:
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            descriptor:  NOAA Climate Data Record (CDR) of monthly aerosol optical thickness over global oceans derived from PATMOS-x AVHRR channel 1 (0.63 micron) level2b orbital clear-sky radiance (atmosphere_optical_thickness_due_to_aerosol)
            units:  http://example.org/someUnitsDictionary.xml#1
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            descriptor:  (longitude)
            units:  http://example.org/someUnitsDictionary.xml#degree
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    contentInfo:  (MI_CoverageDescription)
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            descriptor:  time (time)
            units:  http://example.org/someUnitsDictionary.xml#days%20since%201970-01-01%2000%3A00%3A00
        dimension:  (MD_Band)
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                aName:  aot1
                attributeType:
                  TypeName:
                    aName:  float
            descriptor:  NOAA Climate Data Record (CDR) of daily aerosol optical thickness over global oceans derived from PATMOS-x AVHRR channel 1 (0.63 micron) level2b orbital clear-sky radiance (atmosphere_optical_thickness_due_to_ambient_aerosol)
            units:  http://example.org/someUnitsDictionary.xml#1
        dimension:  (MD_Band)
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            descriptor:  (latitude)
            units:  http://example.org/someUnitsDictionary.xml#degree
        dimension:  (MD_Band)
            sequenceIdentifier:
              MemberName:
                aName:  longitude
                attributeType:
                  TypeName:
                    aName:  float
            descriptor:  (longitude)
            units:  http://example.org/someUnitsDictionary.xml#degree
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    distributionInfo:  (MD_Distribution)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                positionName:  Customer Engagement Branch
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  1-828-271-4800
                        facsimile:  1-828-271-4876
                    address:  (CI_Address)
                        deliveryPoint:  151 Patton Avenue
                        deliveryPoint:  Veach-Baley Federal Building, Room 468
                        city:  Asheville
                        administrativeArea:  NC
                        postalCode:  28801-5001
                        country:  USA
                        electronicMailAddress:  ncei.orders@noaa.gov
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://www.ncei.noaa.gov
                        protocol:  HTTPS
                        applicationProfile:  Web Browser
                        name:  NOAA National Centers for Environmental Information (NCEI)
                        description:  NCEI home page with information, data access and contact information.
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                    hoursOfService:  8:00 - 6:00 Eastern
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media.
            distributorFormat:  (MD_Format)
                name:  XML
                version: (missing)
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                transferSize: (missing)
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                    linkage: https://doi.org/10.7289/V5SB43PD
                    protocol:  HTTPS
                    applicationProfile:  Description
                    name:  NOAA Climate Data Record (CDR) of AVHRR Daily and Monthly Aerosol Optical Thickness over Global Oceans, Version 2.0 (Version Superseded) Landing Page
                    description:  This dataset provides a high quality Climate Data Record (CDR) of aerosol optical thickness (AOT). As a high quality climate data record, this dataset can be used for climate model evaluation as well as air pollution and climate assessment.
                    function:  (CI_OnLineFunctionCode) information
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                positionName:  Customer Engagement Branch
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  1-828-271-4800
                        facsimile:  1-828-271-4876
                    address:  (CI_Address)
                        deliveryPoint:  151 Patton Avenue
                        deliveryPoint:  Veach-Baley Federal Building, Room 468
                        city:  Asheville
                        administrativeArea:  NC
                        postalCode:  28801-5001
                        country:  USA
                        electronicMailAddress:  ncei.orders@noaa.gov
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://www.ncei.noaa.gov
                        protocol:  HTTPS
                        applicationProfile:  Web Browser
                        name:  NOAA National Centers for Environmental Information (NCEI)
                        description:  NCEI home page with information, data access and contact information.
                        function:  (CI_OnLineFunctionCode) information
                    hoursOfService:  8:00 - 6:00 Eastern
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media.
            distributorFormat:  (MD_Format)
                name:  NetCDF
                version:  4
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                transferSize: (missing)
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                    linkage: https://www.ncdc.noaa.gov/customer-support
                    protocol:  HTTPS
                    applicationProfile:  Web Browser
                    name:  NCEI Customer Service
                    description:  For access to this version of the dataset (superseded), please contact the Customer Engagement Branch.
                    function:  (CI_OnLineFunctionCode) offlineAccess
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
            extent:  #boundingExtent
        lineage:  (LI_Lineage)
            statement:  For more information, see associated processing documentation.
            processStep:  (LE_ProcessStep)
                description: (missing)
                dateTime: (missing)
                processor:  (CI_ResponsibleParty)
                    organisationName: (missing)
                    role:  (CI_RoleCode) processor
                source:  sd001
                processingInformation:  (LE_Processing)
                    identifier: (missing)
                    documentation:  (CI_Citation)
                        title:  Aerosol Optical Thickness (AOT) Data Flow Diagram
                        date: (missing)
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                            role:  (CI_RoleCode) distributor
                    algorithm:  (LE_Algorithm)
                        citation:  (CI_Citation)
                            title:  Aerosol Optical Thickness (AOT) Climate Algorithm Theoretical Basis Document (C-ATBD)
                            date: (missing)
                            citedResponsibleParty:  (CI_ResponsibleParty)
                                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                                role:  (CI_RoleCode) distributor
                        description:  See Algorithm Citation
            source:  (LE_Source)
                description:  Data were derived using PATMOS-X v5.2 data
                sourceCitation:  (CI_Citation)
                    title:  Fundamental Climate Data Record (CDR) of Reflectance from AVHRR Bands 1, 2 and 3a
                    date:  (CI_Date)
                        date:  2010-09-30
                        dateType:  (CI_DateTypeCode) publication
                    edition:  v5.2
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                        role:  (CI_RoleCode) distributor
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (missing)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.ncdc:C00831
                                protocol:  HTTPS
                                applicationProfile:  Web Browser
                                name:  AVHRR Reflectance - PATMOS-x
                                description:  Landing Page for the NOAA Climate Data Record (CDR) of Reflectance from AVHRR Pathfinder Atmospheres - Extended (PATMOS-x), Version 5.2
                                function:  (CI_OnLineFunctionCode) information
                        role: (missing)
                sourceExtent:  (EX_Extent)
                    geographicElement:  (EX_GeographicBoundingBox)
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                        westBoundLongitude:  -180.0
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                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  1981-01-01
                            endPosition:  2009-12-31
                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:
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                    CodeListValue:  intermediate
                value:
                  Record:
                    CodeListValue:  intermediate
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Bulk metadata change applied on 2018-11-05. See version control repository history for metadata change details.