gov.noaa.ncdc:C00799 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2026-09-23T17:30:05 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA Climate Data Record (CDR) of GPS RO-Calibrated AMSU Channel 7 (Temperatures of Troposphere / Stratosphere, TTS), Version 1.0 (Version Superseded) Mean Layer Temperature - UCAR (Upper Trop & Lower Strat) 2013-11-07 publication 2013-09-20 creation Version 1.0 NCEI DSI 3659_01 gov.noaa.ncdc:C00799 National Centers for Environmental Information publisher UCAR/COSMIC/CDAAC > COSMIC Data Analysis and Archive Center, Constellation Observing System for Meteorology, Ionosphere and Climate, University Corporation for Atmospheric Research resourceProvider DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce NOAA Climate Data Record Program Office +1 (828) 271-4800 +1 (828) 271-4328 151 Patton Avenue Veach-Baley Federal Building, Room 447 Asheville NC 28801-5001 USA cdr_program.ncdc@noaa.gov https://www.ncei.noaa.gov/products/climate-data-records HTTPS Information NOAA Climate Data Record Program Information on the NOAA CDR Program and data. information 8:00 - 6:00 Eastern publisher Ho, S.-P. principalInvestigator Ho, S.-P. author Goldberg, M. collaborator Goldberg, M. author Kuo, Y.-H. collaborator Kuo, Y.-H. author Zou, C.-Z collaborator Zou, C.-Z author Schreiner, W. collaborator Schreiner, W. author NOAA CDR Program collaborator NOAA CDR Program author tableDigital The Climate Data Records (CDR) for Channel 7 contains Radio Occulation (RO) calibrated brightness temperatures from AMSU-A channel 7 measurements at 54.9 GHz from 2001 through 2015 on a 2.5 degree grid. Data are partitioned into yearly files with monthly variables, where each file contains RO-calibrated channel 7 brightness temperatures from AMSU-A measurements from NOAA-15, 16, 17, 18, 19, NASA AQUA and Metop-A. The dataset uses version 2010.2640 of the RO mission data from the UCAR COSMIC Data Analysis and Archival Center (CDAAC), the NOAA archive of the Level 1b AMSU dataset, and the NASA DAAC archive of the Aqua Level 1B dataset. The RO satellites measure the bending angle of GPS signals as they pass through the atmosphere. Temperature profiles are derived from these GPS bending angles from the COSMIC and CHAMP data from 2001 through present. Calibration coefficients are calculated from coincident measurements of AMSU channel 7 brightness temperatures and corresponding values derived from an AMSU forward model applied to temperature profile measurements from RO identified radiosondes. The monthly calibration coefficients are applied to adjust the AMSU Temperature Troposphere Stratosphere (TTS) measurements for each polar orbiter to the temperature profiles from the RO identified Radiosonde Observations (RAOBs). The calibrated AMSU measurements are then combined into gridded monthly values. From these the climatology is calculated using 12 years of data. Anomaly values are then obtained by subtracting this climatology from the monthly values. This dataset provides advanced scientific researchers a high quality Climate Data Record (CDR) of Upper Troposphere / Stratosphere Temperatures. The objective of this study is to use highly stable GPS RO data to identify high quality radiosonde data and sue the radiosonde data to calibrate AMSU-A channel 7 brightness temperatures and to further use the calibrated AMSU brightness temperatures to construct a consistent climate data record. This dataset would help for climate temperature trend studies, climate model validation, and for decision makers to establish climate policies. superseded NOAA National Centers for Environmental Information Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern pointOfContact National Centers for Environmental Information NOAA Climate Data Record Program Office +1 (828) 271-4800 CDR-IPT-MSU_AMSU_Temp@noaa.gov pointOfContact notPlanned https://www.ncei.noaa.gov/pub/data/metadata/images/C00799-AMSU-Ch7.JPG AMSU Channel 7 BT Sample Image JPG Earth Science > Spectral/Engineering > Infrared Wavelengths > Brightness Temperature theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher NOAA Climate Data Record (CDR) Program project Keyword Thesaurus Title Satellite product Keyword Thesaurus Title Geographic Region > Global place Global Change Master Directory (GCMD) Location Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher AMSU-A > Advanced Microwave Sounding Unit-A GPS > Global Positioning System instrument Global Change Master Directory (GCMD) Instrument Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher NOAA-15 > National Oceanic & Atmospheric Administration-15 NOAA-16 > National Oceanic & Atmospheric Administration-16 NOAA-17 > National Oceanic & Atmospheric Administration-17 NOAA-18 > National Oceanic & Atmospheric Administration-18 NOAA-19 > National Oceanic & Atmospheric Administration-19 AQUA > Earth Observing System, AQUA METOP-A > Meteorological Operational Satellite - A COSMIC > Constellation Observing System for Meteorology, Ionosphere, and Climate CHAMP > Challenging Mini-satellite Payload platform Global Change Master Directory (GCMD) Platform Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Monthly Climatology dataResolution Global Change Master Directory (GCMD) Temporal Data Resolution Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce 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 dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher For a complete description of use limitations for this CDR, see the Algorithm Theoretical Basis Document. otherRestrictions Use Constraints: NCEI cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NCEI makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. 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. otherRestrictions Cite as: Ho, S.-P., M. Goldberg, Y.-H. Kuo, C.-Z Zou, W. Schreiner, and the NOAA CDR Program (2013): NOAA Climate Data Record (CDR) of GPS RO-Calibrated AMSU Channel 7 (Temperatures of Troposphere / Stratosphere, TTS), Version 1.0 [Indicate subset used]. NOAA National Centers for Environmental Information. [access date]. otherRestrictions Publications using this dataset should also reference the following journal article: Ho, S.-P., M. Goldberg, Y.-H. Kuo, C.-Z Zou, W. Schreiner, Calibration of Temperature in the Lower Stratosphere from Microwave Measurements using COSMIC Radio Occultation Data: Preliminary Results, Terr. Atmos. Oceanic Sci., Vol. 20, doi: 10.3319/TAO.2007.12.06.01(F3C), 2009. NOAA Climate Data Record for Mean Layer Temperature (Upper Troposphere & Lower Stratosphere) from UCAR, Version 2 gov.noaa.ncdc:C00944 https://doi.org/10.7289/V5XP72XZ Web Browser Mean Layer Temperature - UCAR (Upper Trop & Lower Strat) Version 2.0 Landing Page **Current Version** For access and information about the current dataset version, please follow the link. information largerWorkCitation collection Calibration of Temperature in the Lower Stratosphere from Microwave Measurements Using COSMIC Radio Occultation Data: Preliminary Results http://nldr.library.ucar.edu/repository/assets/osgc/OSGC-000-000-003-203.pdf Web Browser Calibration of Temperature in the Lower Stratosphere from Microwave Measurements Using COSMIC Radio Occultation Data: Preliminary Results Please view the journal article associated with the dataset. information largerWorkCitation collection Mean Layer Temperature - UCAR (Upper Trop/Lower Strat) Version 2 Landing Page https://doi.org/10.7289/V52F7KFQ Web Browser Mean Layer Temperature - UCAR (Upper Trop/Lower Strat) Version 2 Landing Page **Current Version** For access and information about the current dataset version, please follow the link. information largerWorkCitation collection grid eng; USA climatologyMeteorologyAtmosphere 1 -180.0 180.0 -90.0 90.0 ground condition 2001-05 2015-03 time float time (time) lon float longitude (longitude) lat float latitude (latitude) time_bounds float lon_bounds float lat_bounds float temperature float NOAA Climate Data Record of AMSU Channel 7 Brightness Temperature (brightness_temperature) time float time (time) lon float longitude (longitude) lat float latitude (latitude) time_bounds float lon_bounds float lat_bounds float bt_anomaly float NOAA Climate Data Record of AMSU Channel 7 Brightness Temperature Anomaly (brightness_temperature_anomaly) time float time (time) lon float longitude (longitude) lat float latitude (latitude) climatology_bounds float lon_bounds float lat_bounds float bt_climatology float NOAA Climate Data Record of AMSU Channel 7 Brightness Temperature (brightness_temperature_climatology) NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor 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. Contact NCEI for other distribution options and instructions. netCDF-4 4 CF Conventions netCDF 4 https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C00799/html HTTPS Landing Page NCEI Dataset Landing Page Landing page for the dataset. information https://www.ncei.noaa.gov/contact HTTPS Web Browser Contact NCEI Contact NCEI for more information and to request access to the archived data. Requests are subject to NCEI order fulfillment constraints. offlineAccess https://www.ncei.noaa.gov/products/climate-data-records HTTPS Information Operational Climate Data Records in the NOAA CDR Program Access to the published CDR data, source code, and documentation. information dataset For a complete description of the processing steps, see the Algorithm Theoretical Basis Document and Data Flow Diagram. processor Source Code Package for AMSU Ch7, v1.0 2013-12-13 publication NOAA Climate Data Record Program Office publisher Data Flow Diagram for AMSU Ch7, v1.0 2013-08-09 publication NOAA Climate Data Record Program Office publisher repository NOAA National Centers for Environmental Information 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. 2015-04-22T00:00:00 asNeeded Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.