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Earth System Research Laboratory Halocarbons and Other Atmospheric Trace Gases Radiatively Important Trace Species (RITS) Measurements


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        citation:  (CI_Citation)
            title:  Earth System Research Laboratory Halocarbons and Other Atmospheric Trace Gases Radiatively Important Trace Species (RITS) Measurements
            alternateTitle:  ESRL GMD HATS RITS
            date:  (CI_Date)
                date:  2017-11
                dateType:  (CI_DateTypeCode) publication
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                date:  1987-08-01
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            edition:  Version 1
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                  Anchor:  DOI doi:10.7289/V51N7ZDK
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                code:  NCEI DSI 3269_01
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                code:  gov.noaa.ncdc:C01555
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                individualName:  Elkins, James
                organisationName:  DOC/NOAA/ESRL/GMD > Global Monitoring Division, Earth System Research Laboratory, NOAA, U.S. Department of Commerce
                positionName:  Group Chief, Halocarbons and other Atmospheric Trace Species Group
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                        electronicMailAddress:  james.w.elkins@noaa.gov
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                individualName:  Elkins, James
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                positionName:  Group Chief, Halocarbons and other Atmospheric Trace Species Group
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                individualName:  Nance, David
                organisationName:  DOC/NOAA/ESRL/GMD > Global Monitoring Division, Earth System Research Laboratory, NOAA, U.S. Department of Commerce
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                individualName:  Hall, Bradley
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                positionName:  Scientist, Halocarbons and other Atmospheric Trace Species Group
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                positionName:  Scientist, Halocarbons and other Atmospheric Trace Species Group
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        abstract:  The Halocarbons and other Atmospheric Trace Species (HATS) group aims to quantify the atmospheric burden, and the distributions and magnitudes of sources and sinks for nitrous oxide and other halogen containing compounds. They utilize numerous types of platforms, including ground-based stations, towers, ships, aircraft, and balloons to accomplish their mission. HATS measures chlorofluorocarbons (CFCs) at measurement sites spanning the globe. CFCs are non-toxic, non-flammable chemicals that contain carbon, chlorine, and fluorine atoms. CFCs were used as solvents, refrigerants, and aerosol sprays. While inert in the troposphere, they decompose in the stratosphere to release chlorine for destructive reactions with ozone. This process eventually led to the creation of the "Ozone Hole" over the Antarctic. Monitoring the amounts of CFCs and other trace gases is important, both for tracking the growth and recovery of the Ozone Hole, and because many upward trending trace gases are potent and durable greenhouse gases. Original in-situ sampling electron capture gas chromatographs ("RITS"): The Radiatively Important Trace Species (RITS) program consisted of five stand-alone systems that were used to make in-situ measurements at Barrow, AK (BRW), Mauna Loa, HI (MLO), American Samoa (SMO), South Pole, Antarctica (SPO), and Niwot Ridge, CO (NWR) from 1983 until 2001 when the last of the systems was retired. The RITS systems were replaced by the next-generation CATS systems that have remained operational since then. The RITS systems measured nitrous oxide (N2O), the chlorofluorocarbons CFC-12 (CCl2F2), CFC-11 (CCl3F), and CFC-113 (CCl2F-CClF2, although quality measurements of this gas have been nullified by the lack of stable references during the RITS period), methyl chloroform (CH3CCl3), and carbon tetrachloride (CCl4) once per hour. Through the Big Earth Data Initiative (BEDI), ESRL/GMD has taken their data collection and converted files into NetCDF-4, a self-describing format.
        purpose:  The general mission of the Halocarbons and other Atmospheric Trace Species group is to quantify the distributions and magnitudes of sources and sinks for atmospheric nitrous oxide (N2O) and halogen containing compounds.
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            individualName:  Geoffrey Dutton
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            keyword:  Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Chlorofluorocarbons
            keyword:  Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Carbon Tetrachloride
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            keyword:  EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > METHYL CHLOROFORM
            keyword:  Ozone Depletion
            keyword:  Montreal Protocol
            keyword:  Halocarbons
            keyword:  Atmospheric - Composition - Nitrous Oxide and Greenhouse Gases (including CFCs, halons, and SF6)
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            otherConstraints:  Cite as: Elkins, James W.; Nance, David, Bradley Hall, and NOAA ESRL (2017): Earth System Research Laboratory Halocarbons and Other Atmospheric Trace Gases Radiatively Important Trace Species (RITS) Measurements, Version 1. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V51N7ZDK [access date].
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            otherConstraints:  The information contained herein is provided as a public service, with the understanding that the NOAA/ESRL Global Monitoring Divison makes no warranties, either expressed or implied, concerning the accuracy, completeness, reliability, or suitability of the information.
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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:  Decrease in the growth rates of atmospheric chlorofluorocarbons 11 and 12
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                    date:  1993-08-26
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                    code:  doi:10.1038/364780a0
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Nature International Journal of Science
                    role:  (CI_RoleCode) publisher
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (missing)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.nature.com/articles/364780a0
                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  Decrease in the growth rates of atmospheric chlorofluorocarbons 11 and 12
                            description:  PDF from Nature
                            function:  (CI_OnLineFunctionCode) information
                    role: (missing)
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
            initiativeType:  (DS_InitiativeTypeCode) sciencePaper
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) climatologyMeteorologyAtmosphere
        environmentDescription:  Initial peak integration of chromatograms was conducted on HP digital integration machines or workstations. Quality control and mixing ratios were calculated via custom software on HP workstations.
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                extentTypeCode:  1
                westBoundLongitude:  -180.0
                eastBoundLongitude:  180.0
                southBoundLatitude:  -90.0
                northBoundLatitude:  90.0
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    description:  ground condition
                    beginPosition:  1987-08-01
                    endPosition:  2001-08-31
                    timeInterval:  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-4
                version: (missing)
                fileDecompressionTechnique:  Yes
            distributorFormat:  (MD_Format)
                name:  HTML
                version: (missing)
            distributorFormat:  (MD_Format)
                name:  HTML
                version: (missing)
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://doi.org/10.7289/V51N7ZDK
                    protocol:  HTTPS
                    applicationProfile:  Landing Page
                    name:  NCEI Dataset Landing Page
                    description:  Landing page for the dataset.
                    function:  (CI_OnLineFunctionCode) information
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                transferSize: (missing)
                onLine:  (CI_OnlineResource)
                    linkage: ftp://aftp.cmdl.noaa.gov/hats
                    applicationProfile:  Download
                    name:  ESRL Direct Download
                    description:  Direct download for data.
                    function:  (CI_OnLineFunctionCode) download
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                transferSize: (missing)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.esrl.noaa.gov/gmd/hats/
                    protocol:  HTTPS
                    applicationProfile:  Information
                    name:  ESRL/GMD HATS Group Website
                    description:  Project page with dataset information.
                    function:  (CI_OnLineFunctionCode) information
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                transferSize: (missing)
                onLine:  (CI_OnlineResource)
                    linkage: https://esrl.noaa.gov/gmd/hats/insitu/insitu.html
                    protocol:  HTTPS
                    applicationProfile:  Information
                    name:  ESRL/GMD HATS RITS Data Website
                    description:  Project page with dataset information.
                    function:  (CI_OnLineFunctionCode) information
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
            extent:  #boundingExtent
        lineage:  (LI_Lineage)
            statement:  Raw data were collected at field sites, transferred to NOAA where initial processing was performed. Quality control and processing were conducted on a desktop computer.
            processStep:  (LE_ProcessStep)
                description:  Typical data processing involves peak integration, calculating detector response and correcting for drift, applying calibrations, calculating mixing ratios. Quality control and data flagging may occur at any of these steps.
                dateTime: (missing)
                processor:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/ESRL/GMD > Global Monitoring Division, Earth System Research Laboratory, NOAA, U.S. Department of Commerce
                    role:  (CI_RoleCode) processor
                source:  sd001
            source:  (LE_Source)
                description:  ESRL GMD HATS RITS Instrument Measurements
                sourceCitation:  (CI_Citation)
                    title:  Earth System Research Laboratory Halocarbons and Other Atmospheric Trace Gases Radiatively Important Trace Species (RITS) Measurements
                    date: (missing)
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/ESRL/GMD > Global Monitoring Division, Earth System Research Laboratory, NOAA, U.S. Department of Commerce
                        role:  (CI_RoleCode) originator
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (missing)
                        role: (missing)
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                    geographicElement:  (EX_GeographicBoundingBox)
                        extentTypeCode:  1
                        westBoundLongitude:  -180.0
                        eastBoundLongitude:  180.0
                        southBoundLatitude:  -90.0
                        northBoundLatitude:  90.0
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  1987-08-01
                            endPosition:  2001-08-31
                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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    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.