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Dataset Overview | National Centers for Environmental Information (NCEI)

NOAA Climate Data Record for Mean Layer Temperature (Lower Stratosphere) from UCAR, Version 2

Mean Layer Temperature - UCAR (Lower Stratosphere)

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The Temperatures in the Lower Stratosphere (TLS) (AMSU channel 9 and MSU channel 4) CDR is generated by using National Oceanic and Atmospheric Administration (NOAA), National Aeronautics and Space Administration (NASA), and Europe METeorological Operational satellite-A (Metop/A) satellites which have been calibrated using coincident Global Positioning System (GPS) Radio Occultation (RO) temperature profile measurements from Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) and Challenging Mini-satellite Payload (CHAMP), and Gravity Recovery And Climate Experiment (GRACE) from 2001 to the current. The 'adjusted' MSU/AMSU data in the period of 2001 to 2014 were used as reference data to calibrate other overlapped MSU/AMSU data from 1980 to 2001.
  • Cite as: Ho, Shu-peng; Liang, Peng; and NOAA CDR Program (2016): NOAA Climate Data Record for Mean Layer Temperature (Lower Stratosphere) from UCAR, Version 2 [Indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5XP72XZ [access date]
gov.noaa.ncdc:C00945
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Distribution Formats
  • NetCDF (Version: 3)
    • File Specification: The NetCDF data files comply with the Climate and Forecast (CF) Metadata Conventions and the NetCDF Attribute Convention for Dataset Discovery (ACDD).
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Customer Engagement Branch
NOAA National Centers for Environmental Information
1-828-271-4800
ncei.orders@noaa.gov
Dataset Point of Contact NOAA Climate Data Record Program Office
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
+1 (828) 271-4800
CDR-IPT-MSU_AMSU_Temp@noaa.gov
Time Period 1980-01-01 to Present (time interval: 1-month)
Spatial Bounding Box Coordinates
West: -180.0
East: 180.0
South: -90.0
North: 90.0
Spatial Coverage Map
General Documentation
Processing Documents
  • Mean Layer Temperature - UCAR (Lower Stratosphere) Source Code Package
    • CDR Source Code
      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.
  • Mean Layer Temperature - UCAR (Lower Strat) 01B-07 Data Flow Diagram
  • Climate Algorithm Theoretical Basis Document for Mean Layer Temperature - UCAR (Lower Stratosphere)
Associated Resources
Publication Dates
  • publication: 2016-01-29
  • creation: 2015-12-04
Edition v02r00
Data Presentation Form Digital image
Dataset Progress Status Ongoing - data is continually being updated
Data Update Frequency Quarterly
Purpose This dataset provides advanced scientific researchers a high quality Climate Data Record (CDR) of Lower Stratosphere Temperatures. The objective of this study is to use highly stable GPS RO data to calibrate MSU channel 4 and AMSU-A channel 9 brightness temperatures and to further use the calibrated MSU and AMSU brightness temperatures to construct a consistent climate data record.
Dataset Citation
  • Cite as: Ho, Shu-peng; Liang, Peng; and NOAA CDR Program (2016): NOAA Climate Data Record for Mean Layer Temperature (Lower Stratosphere) from UCAR, Version 2 [Indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5XP72XZ [access date]
Cited Authors
  • Ho, Shu-peng
    UCAR/COSMIC/CDAAC > COSMIC Data Analysis and Archive Center, Constellation Observing System for Meteorology, Ionosphere and Climate, University Corporation for Atmospheric Research
  • Liang, Peng
    UCAR/COSMIC/CDAAC > COSMIC Data Analysis and Archive Center, Constellation Observing System for Meteorology, Ionosphere and Climate, University Corporation for Atmospheric Research
  • NOAA CDR Program
    DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Principal Investigators
  • Ho, Shu-peng
    UCAR/COSMIC/CDAAC > COSMIC Data Analysis and Archive Center, Constellation Observing System for Meteorology, Ionosphere and Climate, University Corporation for Atmospheric Research
Collaborators
  • Liang, Peng
    UCAR/COSMIC/CDAAC > COSMIC Data Analysis and Archive Center, Constellation Observing System for Meteorology, Ionosphere and Climate, University Corporation for Atmospheric Research
  • NOAA CDR Program
    DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Points of Contact
  • Zhang, Bin
    University of Maryland
  • Shao, Dr. Xi
    University of Maryland
Publishers
  • NOAA National Centers for Environmental Information
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Spectral/Engineering > Infrared Wavelengths > Brightness Temperature
  • Earth Science > Spectral/Engineering > Microwave > Brightness Temperature
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • UCAR/COSMIC/CDAAC > COSMIC Data Analysis and Archive Center, Constellation Observing System for Meteorology, Ionosphere and Climate, University Corporation for Atmospheric Research
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • TIROS-N > Television Infrared Observation Satellite-N
  • NOAA-6 > National Oceanic & Atmospheric Administration-6
  • NOAA-7 > National Oceanic & Atmospheric Administration-7
  • NOAA-8 > National Oceanic & Atmospheric Administration-8
  • NOAA-9 > National Oceanic & Atmospheric Administration-9
  • NOAA-10 > National Oceanic & Atmospheric Administration-10
  • NOAA-11 > National Oceanic & Atmospheric Administration-11
  • NOAA-12 > National Oceanic & Atmospheric Administration-12
  • NOAA-14 > National Oceanic & Atmospheric Administration-14
  • NOAA-15 > National Oceanic & Atmospheric Administration-15
  • NOAA-16 > National Oceanic & Atmospheric Administration-16
  • NOAA-18 > National Oceanic & Atmospheric Administration-18
  • NOAA-19 > National Oceanic & Atmospheric Administration-19
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • AMSU-A > Advanced Microwave Sounding Unit-A
  • MSU > Microwave Sounding Unit
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Geographic Region > Global
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • NOAA Climate Data Record (CDR) Program
  • NOAA OneStop Project
  • CHAMP > Challenging Minisatellite Payload
Data Resolution keywords Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
  • 250 km - < 500 km or approximately 2.5 degrees - < 5.0 degrees
Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
  • > 1 km
Global Change Master Directory (GCMD) Temporal Data Resolution Keywords
  • Monthly Climatology
Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
  • 250 km - < 500 km or approximately 2.5 degrees - < 5.0 degrees
Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
  • > 1 km
Global Change Master Directory (GCMD) Temporal Data Resolution Keywords
  • Monthly Climatology
Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
  • 250 km - < 500 km or approximately 2.5 degrees - < 5.0 degrees
Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
  • > 1 km
Global Change Master Directory (GCMD) Temporal Data Resolution Keywords
  • Monthly Climatology
Stratum keywords Global Change Master Directory (GCMD) Location Keywords
  • Vertical Location > Troposphere
Use Constraints
  • Cite as: Ho, Shu-peng; Liang, Peng; and NOAA CDR Program (2016): NOAA Climate Data Record for Mean Layer Temperature (Lower Stratosphere) from UCAR, Version 2 [Indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5XP72XZ [access date]
  • See the Use Agreement for this CDR available on the CDR page.
  • 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.
Access Constraints
  • 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.
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.
Lineage information for: dataset
Lineage Statement The data were produced by the COSMIC Data Analysis and Archive Center at UCAR until mid 2018 and are archived at the NOAA National Centers for Environmental Information (NCEI). Level 1B AMSU data from NOAA 15, 16, 18, and 19, and from METOP/A, and MSU data from TIROS, NOAA6, 7, 8, 9, 10, 11, 12, 14 are used.
Processor
  • COSMIC Data Analysis and Archive Center at UCAR
  • University of Maryland
Processing Steps
  • For each orbiter, AMSU channel 9 and MSU channel 4 radiance, latitude, longitude, time, and scan angle values are input into the algorithm. From CDACC VERSION 2010.2640 data, dry temperature and water vapor profiles are obtained from ATM and WET data respectively. The profiles from the GPS RO missions COSMIC and CHAMP are first interpolated to 100 pressure levels and then passed to an AMSU forward model to calculate the corresponding channel 9 brightness temperatures. Those derived brightness temperatures, along with latitude, longitude, and time values, are then input into the algorithm. The size of the derived datasets varies with the number of radio occultation events, typically they require about 10 mb per month. The MERRA reanalysis data are read and interpolated to 100 pressure levels. Then the profiles are passed to AMSU and MSU forward model to calculate the corresponding brightness temperatures.
  • 2019-02-01T00:00:00 - In February 2019, data production shifted from UCAR to University of Maryland. All data submitted from this time forward were produced on servers located at the University of Maryland.
Processing Environment Work station using Linux OS is used to process the data
Processing Documents
    • Mean Layer Temperature - UCAR (Lower Stratosphere) Source Code Package
      • CDR Source Code
        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.
    • Mean Layer Temperature - UCAR (Lower Strat) 01B-07 Data Flow Diagram
Source Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - 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.
Last Modified: 2023-08-10
For questions about the information on this page, please email: ncei.info@noaa.gov