Algorithm for Automated Detection of Edges of Clouds

Merceret, Francis J. ; Ward, Jennifer G.

PID  :  NTRS Document ID: 20110013589
RP-ID  :  KSC-12574

学科分类：大气科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

An algorithm processes cloud-physics data gathered in situ by an aircraft, along with reflectivity data gathered by ground-based radar, to determine whether the aircraft is inside or outside a cloud at a given time. A cloud edge is deemed to be detected when the in/out state changes, subject to a hysteresis constraint. Such determinations are important in continuing research on relationships among lightning, electric charges in clouds, and decay of electric fields with distance from cloud edges.