Short Name:
VNP02DNB

VIIRS/NPP Day/Night Band 6-Min L1B Swath 750m

The VIIRS/NPP Day/Night Band 6-Min L1B Swath 750m is generated from the processing of 6 minutes of the Visible Infrared Imaging Radiometer Suite (VIIRS) data acquired during the Suomi National Polar-orbiting Partnership (S-NPP) satellite overpass. The Day/Night band (DNB) is a panchromatic channel covering the wavelengths from 500 nm to 900 nm, and is sensitive to visible and near-infrared during daylight hours as well as the low-level radiation observed at night. The shortname for this product is VNP02DNB. The VIIRS DNB is much improved from previous products due in large part to its complicated continuous on-board calibration. In addition, new-moon Earth observations are used to estimate and remove stray light. These on-orbit radiometric calibration corrections are the first of its kind. The corrections made to the DNB data are provided by the NASA VIIRS Characterization Support Team and are likely to continue to evolve given this new methodology. The spatial resolution of the instrument at viewing nadir is approximately 750 m for the DNB and the Moderate-resolution Bands and and 375m for the Imagery bands. The DNB is aggregated to maintain nearly constant horizontal spatial resolution across the swath. As the DNB is sensitive to nighttime radiation over the full lunar cycle, the incoming solar and lunar radiation must be properly modeled to calculate the reflectance. However, the DNB is sensitive to more sources of radiation than just the sun and moon. File_naming_convention = VNP02DNB.AYYYYDDD.HHMM.CCC.YYYYDDDHHMMSS.nc AYYYYDDD = Acquisition Year and Day of Year HHMM = Acquisition Hour and Minute CCC = Collection number YYYYDDDHHMMSS = Production Date and Time nc = NetCDF4

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