Abstract. An operational data product available for both the Suomi National Polar-orbiting Partnership (S-NPP) and National Oceanic and Atmospheric Administration-20 (NOAA-20) platforms provides high-spatial-resolution infrared
(IR) absorption band radiances for Visible Infrared Imaging Radiometer Suite (VIIRS) based on a VIIRS and Crosstrack
Infrared Sounder (CrIS) data fusion
method. This study investigates the use of these IR radiances, centered at
4.5, 6.7, 7.3, 9.7, 13.3, 13.6, 13.9, and 14.2 µm, to construct
atmospheric moisture products (e.g., total precipitable water and upper
tropospheric humidity) and to evaluate their accuracy. Total precipitable
water (TPW) and upper tropospheric humidity (UTH) retrieved from
hyperspectral sounder CrIS measurements are provided at the associated VIIRS
sensor's high spatial resolution (750 m) and are compared subsequently to
collocated operational Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) and S-NPP VIIRS moisture products.
This study suggests that the use of VIIRS IR absorption band radiances will
provide continuity with Aqua MODIS moisture products.