The Combined Radar-Radiometer Algorithm — GPM Version 06X

Olson, Bill ; Grecu, Mircea ; Ringerud, Sarah ; Munchak, Joe ; Haddad, Ziad ; Kuo, Kwo-Sen ; Randel, Dave ; Kelley, Bart ; Bolvin, Dave ; Liao, Liang(Morgan State Univ, GESTAR, Baltimore, MD, United States)

关键词: ALGORITHMS;    BIAS;    DISCONTINUITY;    EXTREMELY HIGH FREQUENCIES;    GROUND EFFECT (COMMUNICATIONS);    METEOROLOGICAL RADAR;    PRECIPITATION MEASUREMENT;    RADAR ATTENUATION;    RADIOMETERS;   

RP-ID  :  GSFC-E-DAA-TN75707

学科分类：数值分析

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

The primary motivation behind the Version 6X (V06X) Combined Radar-Radiometer Algorithm (CORRA) is to utilize high-sensitivity mode (HS) Ka-band data that had been moved to locations in the outer part of the GPM Dual-Frequency Precipitation Radar (DPR) swath on May 21, 2018. Presented at the Precipitation Measurement Missions (PMM) meeting are statistics of CORRA precipitation estimates across both the inner and outer portions of the DPR swath for the purpose of identifying potential discontinuities caused by the new HS data. Although none are found, further investigation reveals possible biases caused by assumptions regarding radar pulse attenuation within the ground clutter of the DPR.