AVHRR Radiances - NASA CDR

Configuration ID: 01B-30a

The Advanced Very High Resolution Radiometer (AVHRR) Radiances - NASA Climate Data Record (CDR) provides long term datasets for multiple radiance and reflective properties. AVHRR visible gains and offsets, which convert global area coverage (GAC) pixel level counts to radiance values, are provided for each visible band for the following satellites: TIROS-N, NOAA-6 through NOAA-19 and MeTop-A and B platforms. The data record extends from 1978– 2016 with twice daily temporal resolution between 55°N–55°S, with the potential for increased temporal resolution in polar regions.

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Principal Investigator

Patrick Minnis, NASA

Citation

Cite dataset when used as a source. See the dataset's landing page for citation details doi:10.7289/V5NK3C0J.

Data Access

Information

Documentation

  • Solar channel calibration coefficients for AVHRR VIS (0.64 µm), VEG (0.87 µm) and  NIR (1.6 µm) channels
  • VIS (0.64 µm), VEG (0.87 µm), and NIR (1.6 µm) scaled reflectances

Technical Note

Calibration Coefficients note: The visible calibration coefficients are designed for cloud and land use, as well as radiation-imager-retrieval algorithms that provide consistent 35+/-year climate quality sampling over time across satellite platforms. The provided satellite-based visible calibration uncertainties serve as a quality indicator of the calibration coefficients, which reference the Aqua-MODIS band 1 and 2 absolute calibration. The visible calibration coefficients derived use regions over deep, convective clouds; Sahara and Arabian Desert sites; and the Dome-C and Greenland pseudo invariant targets to compensate for individual site stability fluctuations over satellite lifetimes.