Cross Validation of TEMPEST-D and RainCube Observations Over Precipitation Systems

This paper presents cross-validation of nearly simultaneous observations between the Temporal Experiment for Storms and Tropical Systems -Demonstration (TEMPEST-D) RainCube (Radar in a CubeSat) satellite microwave sensors over precipitation systems. senses atmosphere using Ka-band nadir-pointing radar, TEMPEST-D multi-frequency millimeter-wave radiometers. Nine systems were used this study. Occurring two-year period, these storms scattered many regions world from Tropics to mid-latitudes. A shift correction algorithm was developed remove uncertainty two sensors' due time difference storm motion instrument overpasses. Correlation coefficients calculated self-normalized, inverted cumulative reflectivity self-normalized brightness temperatures. As expected, correlation are consistently higher four high-frequency channels than single low-frequency channel. The improved average coefficient by 19% 58% after is 0.76 TEMPEST-D's 0.54 comparisons demonstrated high consistency observations, even though fundamental physics different; one passive, other active.