Lifetime Performance Assessment Of Snpp Omps Nadir Mapper Sdr Data Using Simultaneous Nadir Overpass Collocated Observations With Gome-2

The Nadir Mapper (NM) is one of two nadir sensors of the Ozone Mapping and Profiler Suite (OMPS) that are designed to measure the ultraviolet radiance backscattered by the Earth's atmosphere and surface as well as solar irradiance. This study assesses the lifetime performance of Suomi National Polar-orbiting Partnership (SNPP) satellite NM reflectance data since its launch by using Simultaneous Nadir Overpass (SNO) collocated observations with Global Ozone Monitoring Experiment-2 (GOME-2) spectrometer onboard Meteorological Operational-B (Metop-B) satellite. The study also analyzes the consistency of the NM data quality between SNPP and NOAA-20 satellite using GOME-2 as a transfer.