Digital Meteorological Radar Data Compared with Digital Infrared Data from a Geostationary Meteorological Satellite

摘要

Digital 10 cm radar data were collected using the Texas A&M University weather radar system. The digital radar data were then compared with GOES-East infrared imagery mapped to the digital radar grid projection. Point values of infrared digital count were correlated with point values of zero-tilt reflectivity, low-level PVSZ, mid-level PVSZ, upper-level PVSZ, and VIL for selected portions of two digital radar tilt-sequences. Correlations also were performed using thresholded infrared images and thresholded digital radar data. The results indicated a positive correlation between infrared digital count and the digital radar data. Thresholding the infrared imagery was found to improve the correlation between infrared digital count and digital radar data. Thresholding the digital radar data produced less conclusive results. (Author)