Evaluation of SNPP and NOAA-20 VIIRS Datasets Using RadCalNet and Landsat 8/OLI Data

In this study, we used RVUS data from RadCalNet as a benchmark to verify the radiometric accuracy and stability of operational reprocessed SNPP/VIIRS NOAA-20/VIIRS data, well assess efficiency reprocessing algorithm. addition, remove uncertainty site itself, Landsat 8/OLI another with which validate VIIRS through RUVS site. The biases SNPP bands were within ±4% ±2%, respectively, compared OLI, except for M10 M11 bands. particular, M5 M7 reduced by ~2% in study. NOAA-20 VIIRS, on other hand, was consistently lower than ~2 ~4% all For equivalent bands, drift differences between OLI no larger 0.24%/year 0.1%/year, respectively. algorithm efficiently improved dataset meet its specifications.