NOAA Climate Data Record (CDR) of MSU and AMSU-A Mean Layer Temperatures, UAH Version 5.4 (Superseded)

Mean Layer Temperature - UAH

browse graphicMonthly Anomalies in the Lower Troposphere for November 2010
*Please note: this dataset has been superseded by a newer version (see below). This version is archived offline by NOAA NCEI.* 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.
  • 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].
  • NCEI DSI 3688_01
  • gov.noaa.ncdc:C00806
Order Data
  • NCEI Customer Support (order)
    NCEI provides customers with information and data from the NCEI archive. To order NCEI products and services contact the customer support team.
Distribution Formats
  • NetCDF (Version: 3)
Distributor Customer Engagement Branch
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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
uah_msu_contacts@noaa.gov
Time Period 1978-12-01 to 2010-12-01 (time interval: 1-month)
Spatial Bounding Box Coordinates
N: 90.0
S: -90.0
E: 180.0
W: -180.0
Spatial Coverage Map
General Documentation
Associated Resources
  • The role of remote sensing in monitoring global bulk tropospheric temperatures
  • Estimation of Tropospheric Temperature Trends from MSU Channels 2 and 4
  • MSU Tropospheric Temperatures: Dataset Construction and Radiosonde Comparisons
  • Analysis of the Merging Procedure for the MSU Daily Temperature Time Series
  • NOAA Climate Data Record (CDR) of MSU and AMSU-A Mean Layer Temperatures, UAH Version 6.0
Publication Dates
  • publication: 2011-09-29
Edition Version 5.4
Data Presentation Form Digital image
Dataset Progress Status Historical archive - data has been stored in an offline storage facility
Data Update Frequency Not planned
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.
Use Limitations
  • See the Algorithm Theoretical Basis Document for a description of use limitations.
Dataset Citation
  • 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].
Cited Authors
  • Christy, John R.
    Earth System Science Center, University of Alabama in Huntsville
  • Spencer, Roy W.
    Earth System Science Center, University of Alabama in Huntsville
  • Braswell, William D.
    Earth System Science Center, University of Alabama in Huntsville
  • NOAA CDR Program
Principal Investigators
  • Christy, John R.
    Earth System Science Center, University of Alabama in Huntsville
  • Spencer, Roy W.
    Earth System Science Center, University of Alabama in Huntsville
Collaborators
  • Braswell, William D.
    Earth System Science Center, University of Alabama in Huntsville
  • NOAA CDR Program
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Spectral/Engineering > Microwave > Brightness Temperature
  • Earth Science > Spectral/Engineering > Microwave > Temperature Anomalies
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
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
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
  • AQUA > Earth Observing System, AQUA
  • MetOp-A > Meteorological Operational Polar Satellite - A
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 OneStop Project
Stratum keywords Global Change Master Directory (GCMD) Location Keywords
  • Vertical Location > Stratosphere
  • Vertical Location > Troposphere
Use Constraints
  • 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].
  • 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 data certifications, copies of analog materials, and data distribution on physical media.
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.
Acquisition Information (collection)
Instrument
  • MSU > Microwave Sounding Unit
  • AMSU > Advanced Microwave Sounding Unit
Platform
  • 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
  • AQUA > Earth Observing System, AQUA
  • MetOp-A > Meteorological Operational Polar Satellite - A
Last Modified: 2018-11-05
For questions about the information on this page, please email: ncei.orders@noaa.gov