Journal
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
Volume 119, Issue 5, Pages 2441-2456Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1002/2013JD020458
Keywords
clouds
Categories
Funding
- JPSS Program Office Data Products and Algorithms Division (DPA)
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The Visible Infrared Imager Radiometer Suite (VIIRS) Cloud Mask (VCM) determines, on a pixel-by-pixel basis, whether or not a given location contains cloud. The VCM serves as an intermediate product (IP) between the production of VIIRS sensor data records and 22 downstream Environmental Data Records that each depends upon the VCM output. As such, the validation of the VCM IP is critical to the success of the Suomi National Polar-orbiting Partnership (S-NPP) product suite. The methods used to validate the VCM and the current results are presented in this paper. Detailed analyses of golden granules along with tools providing deep insights into granule performance, and specific cloud detection tests reveal the details behind a given granule's performance. Matchup results with CALIPSO, in turn, indicate the large-scale performance of the VCM and whether or not it is meeting its specifications. Comparisons with other cloud masks indicate comparable performance for the determination of clear pixels. As of September 2013 the VCM is either meeting or within 2% of all of its documented requirements. Key Points The VIIRS Cloud Mask is meeting most of its objectives after 1 year The VIIRS Cloud Mask serves the needs of a wide variety of VIIRS applications The VIIRS Cloud Mask is comparable to cloud masks from NOAA and NASA
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