RELAMPAGO Lightning Mapping Array Update

Lang, Timothy

关键词: GOES 16;    LIGHTNING;    STORMS;    OPTICAL MEASUREMENT;    RATES (PER TIME);    BIAS;    EOS DATA AND INFORMATION SYSTEM;    REMOTE SENSING;    ARGENTINA;    GREAT PLAINS CORRIDOR (NORTH AMERICA);    NASA SPACE PROGRAMS;   

RP-ID  :  MSFC-E-DAA-TN60842

学科分类：大气科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

GLM (Geostationary Lightning Mapper) Science Hypothesis for RELAMPAGO (Remote sensing of Electrification, Lightning, And Mesoscale/microscale Processes with Adaptive Ground Observations): Argentinian storms produce some of the highest flash rates ever recorded from space; Due to similarity in geographic and atmospheric environments between Argentina and the U.S. High Plains, we hypothesize that many of these storms have anomalous charge structures, with predominantly positive charge in the mid-levels; Thus, most intracloud lightning flashes are smaller, occur at lower altitudes, and occur in more optically thick portions of the cloud; Therefore, we hypothesize that GLM (and LIS (Lightning Imaging Sensor)) flash rates are biased low in many Argentinian storms, due to reduced optical detection efficiency.