• NOAA Fundamental Climate Data Record (FCDR) of AMSU-A Level 1c Brightness Temperature, Version 1.0

    This dataset contains Level 1c inter-calibrated brightness temperatures from the Advanced Microwave Sounding Unit-A (AMSU-A) sensors onboard six polar orbiting satellites (NOAA-15, -16, -17, -18, EUMETSAT MetOp-A, and NASA Aqua) spanning from 1998 to the present. The dataset was produced by the NOAA Center for Satellite Applications and Research (STAR), and is a Fundamental Climate Data Record (FCDR) of microwave brightness temperature in the NOAA CDR Program. AMSU-A is a 15-channel microwave radiometer with a ground spatial resolution of about 50 km in diameter at nadir. The native AMSU-A Level 1b data were inter-calibrated using the Integrated Microwave Inter-Calibration Approach (IMICA) method to obtain a long-term data product to be used in climate analyses. For comparison, data files also include the operational data used in NWP forecasting along with the IMICA calibrated radiances, which minimize or remove the biases found in the operational calibration. In addition, limb adjusted radiances for both the IMICA and operational calibrations are included for certain type of climate applications, such as atmospheric layer temperature development using the radiance datasets. The orbital swath data files include AMSU-A channels 4 through 14 (between 52.8 and 57.6 GHz) for both the IMICA calibration and the operational calibration. The inter-calibrated AMSU-A data may be updated as the sounding units are further calibrated over time.

    Data and Resources

    Metadata Source

    Harvested from NCDC ISO WAF

    Graphic Preview

    An orbit of AMSU-A Level 1c brightness temperature data from NOAA-18.

    Additional Info

    Field Value
    Resource Type Dataset
    Metadata Date Nov 07, 2014
    Reference Date(s) Aug 01, 2013 (publication)
    Responsible Party DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
    Contact Email zou_amsu_contacts@noaa.gov
    Access Constraints ["Cite dataset when used as a source: Zou, Cheng-Zhi, Wenhui Wang, and NOAA CDR Program (2013): NOAA Fundamental Climate Data\n\t\t\t\t\t\t\tRecord (FCDR) of AMSU-A Level 1c Brightness Temperature, Version 1.0. [indicate subset used]. NOAA National Climatic Data Center.\n\t\t\t\t\t\t\tdoi:10.7289/V5X63JT2 [access date].", "NCDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure\n\t\t\t\t\t\t\tof the data to function on a particular system. NCDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such\n\t\t\t\t\t\t\ta warranty. NCDC can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the\n\t\t\t\t\t\t\tNCDC archives."]
    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 monthly
    Graphic Preview Description An orbit of AMSU-A Level 1c brightness temperature data from NOAA-18.
    Graphic Preview File http://www1.ncdc.noaa.gov/pub/data/metadata/images/C00787_AMSU-A.jpg
    Graphic Preview Type JPEG
    Guid gov.noaa.ncdc:C00787
    Harvest Object Id 230e0bc2-5abe-42cd-966c-bf3b99a61ce0
    Harvest Source Id 0364de30-80ce-414a-a82f-ed4820c77cd1
    Harvest Source Title NCDC ISO WAF
    Licence ["For a complete description of use limiataions for this FCDR, see the Assumptions and Limitations in the Algorithm\n\t\t\t\t\t\t\tTheoretical Basis Document."]
    Metadata Language
    Metadata Type geospatial
    Progress onGoing
    Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1998-10-26

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