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    • NOAA Climate Data Record (CDR) of SSM/I and SSMIS Microwave Brightness Temperatures, CSU Version 1 (Version Superseded)

    Metadata Updated: November 2, 2023

    Note: This dataset version has been superseded by a newer version.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 NOAA Climate Data Record (CDR) from Colorado State University (CSU) contains brightness temperatures that have been improved and quality-controlled over the observation time period. The temperature data are from the Special Sensor Microwave Imager (SSM/I) and Special Sensor Microwave Imager Sounder (SSMIS) series of passive microwave radiometers carried onboard the Defense Meteorological Satellite Program (DMSP) satellites. This dataset encompasses data from a total of nine satellites including the SSM/I sensors on board DMSP satellites F08, F10, F11, F13, F14, and F15 as well as the SSMIS sensors on board DMSP satellites F16, F17, and F18. The data record covers the time period from July 1987 through the present with a 7 to 10 day latency. The spatial and temporal resolutions of the FCDR files correspond to the original resolution of the source TDR observations. There are roughly 15 orbits per day with a swath width of approximately 1400 km resulting in nearly global daily coverage. The spatial resolution of the data is a function of the sensor/channel and varies from approximately ~50 km for the lowest frequency channels to ~15km for the high-frequency channels. The processing of the CDR from the BASE Temperature Data Record (TDR) (also produced by CSU) includes a rigorous quality control of the original TDR data, updated geolocation information, corrections for known issues/problems, and adjustments for residual intercalibration differences between sensors. The output parameters include the observed brightness temperatures for each of the seven SSM/I channels and 24 SSMIS channels at the original sensor channel resolution along with latitude and longitude for each pixel, time, quality flags, and view angle information. The file format is netCDF-4 with added metadata that follow the Climate and Forecast (CF) Conventions and Attribute Convention for Dataset Discovery (ACDD).

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date September 19, 2023
    Metadata Created Date February 3, 2023
    Metadata Updated Date November 2, 2023
    Reference Date(s) August 22, 2013 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from ncdc

    Other Data Resources

    Graphic Preview

    An orbit of 37.0 GHz vertically-polarized (channel 16) brightness temperature from SSMIS on F17.

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 19, 2023
    Metadata Created Date February 3, 2023
    Metadata Updated Date November 2, 2023
    Reference Date(s) August 22, 2013 (publication)
    Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
    Contact Email
    Guid gov.noaa.ncdc:C00827
    Category Tag 16E15F51 D96E 4051 9124 75665Abdc6Ff ["Water"]
    Access Constraints Cite as: Kummerow, Christian D., Wesley K. Berg, Mathew R. P. Sapiano, and NOAA CDR Program (2013): NOAA Climate Data Record (CDR) of SSM/I and SSMIS Microwave Brightness Temperatures, CSU Version 1. [indicate subset used]. NOAA National Climatic Data Center. doi:10.7289/V5CC0XMJ [access date]., 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., 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.
    Bbox East Long 180.0
    Bbox North Lat 90.0
    Bbox South Lat -90.0
    Bbox West Long -180.0
    Coupled Resource
    Frequency Of Update notPlanned
    Graphic Preview Description An orbit of 37.0 GHz vertically-polarized (channel 16) brightness temperature from SSMIS on F17.
    Graphic Preview File https://www.ncei.noaa.gov/pub/data/metadata/images/C00827_CSU_FCDR_T37V.png
    Graphic Preview Type PNG
    Harvest Object Id 36ea0c4e-ad68-4c97-ad4b-14ec1d01907e
    Harvest Source Id 2cb3ef77-1683-4c2a-9119-dc65e50917c6
    Harvest Source Title ncdc
    Licence *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.*, The quality of the output CDR data is dependent on the quality of the input TDR (antenna temperature) data. As such, the near real-time data is labeled as an Interim operational CDR, or an ICDR instead of a final CDR, indicating that it has not yet been fully vetted for climate applications. The ICDR data will transition to final CDR status after the data have undergone further analysis and processing. The expected time lag of the FCDR transition is 6 months to a year. The state of a data file is indicated within each file name., For a complete description of use limitations see the respective Algorithm Theoretical Basis Document.
    Lineage The data were produced by Colorado State University and are archived at the NOAA National Centers for Environmental Information (NCEI).
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1987-07-09
    Temporal Extent End 2011-08-25

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