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NOAA Climate Data Record (CDR) of MSU and AMSU-A Mean Layer Temperatures, UAH Version 5.4 (Version Superseded)


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    dateStamp:  2023-09-14
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        citation:  (CI_Citation)
            title:  NOAA Climate Data Record (CDR) of MSU and AMSU-A Mean Layer Temperatures, UAH Version 5.4 (Version Superseded)
            alternateTitle:  Mean Layer Temperature - UAH
            date:  (CI_Date)
                date:  2011-09-29
                dateType:  (CI_DateTypeCode) publication
            edition:  Version 5.4
            identifier:  (MD_Identifier)
                code:  NCEI DSI 3688_01
            identifier:  (MD_Identifier)
                code:  gov.noaa.ncdc:C00806
            citedResponsibleParty:  (CI_ResponsibleParty)
                individualName:  Christy, John R.
                organisationName:  Earth System Science Center, University of Alabama in Huntsville
                role:  (CI_RoleCode) principalInvestigator
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                individualName:  Christy, John R.
                organisationName:  Earth System Science Center, University of Alabama in Huntsville
                role:  (CI_RoleCode) author
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                individualName:  Spencer, Roy W.
                organisationName:  Earth System Science Center, University of Alabama in Huntsville
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                individualName:  Spencer, Roy W.
                organisationName:  Earth System Science Center, University of Alabama in Huntsville
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                individualName:  Braswell, William D.
                organisationName:  Earth System Science Center, University of Alabama in Huntsville
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                individualName:  Braswell, William D.
                organisationName:  Earth System Science Center, University of Alabama in Huntsville
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                organisationName:  NOAA CDR Program
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                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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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 Climate Data Record (CDR) includes lower tropospheric, mid-tropospheric, and lower stratospheric temperatures over land and ocean derived from microwave radiometers on NOAA and NASA polar orbiting satellites. The temperatures are from measurements produced by Microwave Sounding Units (MSU) since 1978 and Advanced Microwave Sounding Unit-A (AMSU-A) since 1998 flying on NOAA polar orbiting satellites, on NASA Aqua satellite (operating since mid-1998) and on the European MetOp satellite (operating since late 2006). The instruments are cross-track through-nadir scanning externally-calibrated passive microwave radiometers. Brightness temperature measurements are derived at microwave frequencies within the 50-60 GHz oxygen absorption complex, and (in the case of AMSU-A) at a few microwave frequencies above and below that absorption complex. There are three atmospheric layers for which intermediate products are processed: (1) lower-tropospheric (TLT) deep-layer average temperature, computed as a weighted difference between view angles of AMSU-A channel 5, whose heritage comes from MSU channel 2, (2) mid-tropospheric (TMT) deep-layer temperature, computed as an average of the central portion of the scan of AMSU-A channel 5, whose heritage also comes from MSU channel 2, and (3) lower-stratospheric (TLS) deep layer temperatures, computed from the central portion of the scan of AMSU channel 9, whose heritage comes from MSU channel 4. This CDR includes several products. The global monthly anomaly data data are averaged onto a 2.5 x 2.5 degree latitude-longitude grid for each of the three atmospheric layers. Monthly anomalies are averaged for each of the three atmospheric layers over multiple regions, including Global, hemispheric, tropic, extratropic, polar and contiguous U.S. A mean annual cycle of monthly mean layer temperatures is also included. Anomalies are deviations from 1981-2010 mean. The datasets have been converted from the native ASCII format to CF-compliant netCDF-4 format.
        purpose:  The Climate Data Record (CDR) of mean atmospheric layer temperature from MSU/AMSU-A is used for detection of possible trends in greenhouse warming, evaluation of computer models of climate change, and for understanding important factors in the climate system.
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                    deliveryPoint:  151 Patton Avenue
                    deliveryPoint:  Veach-Baley Federal Building, Room 447
                    city:  Asheville
                    administrativeArea:  NC
                    postalCode:  28801-5001
                    country:  USA
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            fileName: https://www.ncei.noaa.gov/pub/data/metadata/images/Monthly_Anom_LT_112010.PNG
            fileDescription:  Monthly Anomalies in the Lower Troposphere for November 2010
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            keyword:  Earth Science > Spectral/Engineering > Microwave > Brightness Temperature
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            keyword:  TIROS-N > Television Infrared Observation Satellite-N
            keyword:  NOAA-6 > National Oceanic & Atmospheric Administration - 6
            keyword:  NOAA-7 > National Oceanic & Atmospheric Administration - 7
            keyword:  NOAA-8 > National Oceanic & Atmospheric Administration - 8
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            keyword:  NOAA-10 > National Oceanic & Atmospheric Administration - 10
            keyword:  NOAA-11 > National Oceanic & Atmospheric Administration - 11
            keyword:  NOAA-12 > National Oceanic & Atmospheric Administration - 12
            keyword:  NOAA-14 > National Oceanic & Atmospheric Administration - 14
            keyword:  NOAA-15 > National Oceanic & Atmospheric Administration - 15
            keyword:  NOAA-16 > National Oceanic & Atmospheric Administration - 16
            keyword:  NOAA-18 > National Oceanic & Atmospheric Administration - 18
            keyword:  NOAA-19 > National Oceanic & Atmospheric Administration - 19
            keyword:  AQUA > Earth Observing System, AQUA
            keyword:  MetOp-A > Meteorological Operational Polar Satellite - A
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            keyword:  Vertical Location > Stratosphere
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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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        resourceConstraints:  (MD_Constraints)
            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.*
        resourceConstraints:  (MD_Constraints)
            useLimitation:  See the Algorithm Theoretical Basis Document for a description of use limitations.
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            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite this dataset when used as a source. John R. Christy, Roy W. Spencer, William D. Braswell, and NOAA CDR Program (2011): NOAA Climate Data Record (CDR) of MSU and AMSU-A Mean Layer Temperatures, UAH Version 5.4. [indicate subset used]. NOAA National Centers for Environmental Information. [access date].
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  See the Use Agreement for this CDR available on the CDR page.
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            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:  The role of remote sensing in monitoring global bulk tropospheric temperatures
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                    date:  2011-02-26
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                            name:  Journal article published February 2011 in the International Journal of Remote Sensing
                            description:  Christy, J. R., Spencer, R. W., & Norris, W. B. (2011, February 21). The role of remote sensing in monitoring global bulk tropospheric temperatures. International Journal of Remote Sensing. Informa UK Limited. https://doi.org/10.1080/01431161.2010.517803
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                title:  Estimation of Tropospheric Temperature Trends from MSU Channels 2 and 4
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                    date:  2006-03-01
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                            description:  Spencer, R. W., Christy, J. R., Braswell, W. D., & Norris, W. B. (2006, March). Estimation of Tropospheric Temperature Trends from MSU Channels 2 and 4. Journal of Atmospheric and Oceanic Technology. American Meteorological Society. https://doi.org/10.1175/jtech1840.1
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                title:  MSU Tropospheric Temperatures: Dataset Construction and Radiosonde Comparisons
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                    date:  2000-09-01
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                    organisationName:  Christy, John R.
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                    organisationName:  Spencer, Roy W.
                    role:  (CI_RoleCode) author
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                    organisationName:  Braswell, William D.
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                    organisationName:  American Meteorological Society
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                            linkage: https://doi.org/10.1175/1520-0426%282000%29017%3C1153%3AMTTDCA%3E2.0.CO%3B2
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                            name:  Journal article published May 1999 in the Journal of Atmospheric and Oceanic Technology
                            description:  Christy, J. R., Spencer, R. W., & Braswell, W. D. (2000, September). MSU Tropospheric Temperatures: Dataset Construction and Radiosonde Comparisons. Journal of Atmospheric and Oceanic Technology. American Meteorological Society. https://doi.org/10.1175/1520-0426%282000%29017%3C1153%3AMTTDCA%3E2.0.CO%3B2
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                    organisationName:  Spencer, Roy W.
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                    organisationName:  American Meteorological Society
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                            linkage: https://doi.org/10.1175/1520-0442%281998%29011%3C2016%3AAOTMPF%3E2.0.CO%3B2
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                            name:  Journal article published August 1998 in the Journal of Climate
                            description:  Analysis of the Merging Procedure for the MSU Daily Temperature Time Series. (1998, August). Journal of Climate. American Meteorological Society. https://doi.org/10.1175/1520-0442%281998%29011%3C2016%3AAOTMPF%3E2.0.CO%3B2
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                title:  NOAA Climate Data Record (CDR) of MSU and AMSU-A Mean Layer Temperatures, UAH Version 6.0
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                    date:  2017-06-19
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                    endPosition:  2010-12-01
                    timeInterval:  1
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                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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            processStep:  (LE_ProcessStep)
                description:  For a description of the processing steps, see the Algorithm Theoretical Basis Document and Data Flow Diagram for this dataset.
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    dataQualityInfo:  (DQ_DataQuality)
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            level:  (MD_ScopeCode) repository
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                dateTime:
                  DateTime:  2015-04-22T00:00:00
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            level:  (MD_ScopeCode) dataset
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                  Record:
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    metadataMaintenance:  (MD_MaintenanceInformation)
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        maintenanceNote:  Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  MSU > Microwave Sounding Unit
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                code:  AMSU > Advanced Microwave Sounding Unit
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            description: (missing)
            instrument: (missing)
        platform:  (MI_Platform)
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                code:  NOAA-6 > National Oceanic & Atmospheric Administration - 6
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            instrument: (missing)
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                code:  NOAA-7 > National Oceanic & Atmospheric Administration - 7
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            instrument: (missing)
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            instrument: (missing)
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            instrument: (missing)
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                code:  NOAA-10 > National Oceanic & Atmospheric Administration - 10
            description: (missing)
            instrument: (missing)
        platform:  (MI_Platform)
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                code:  NOAA-11 > National Oceanic & Atmospheric Administration - 11
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            instrument: (missing)
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                code:  NOAA-12 > National Oceanic & Atmospheric Administration - 12
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            instrument: (missing)
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                code:  NOAA-16 > National Oceanic & Atmospheric Administration - 16
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            instrument: (missing)
        platform:  (MI_Platform)
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                code:  NOAA-18 > National Oceanic & Atmospheric Administration - 18
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            instrument: (missing)
        platform:  (MI_Platform)
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                code:  NOAA-19 > National Oceanic & Atmospheric Administration - 19
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            instrument: (missing)
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                code:  AQUA > Earth Observing System, AQUA
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                code:  MetOp-A > Meteorological Operational Polar Satellite - A
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            instrument: (missing)