Accession Number : AD0664187
Title : FEASIBILITY OF MEASURING VERTICAL ELECTRIC FIELDS IN CUMULUS CLOUDS USING A HOT-AIR BALLOON AND A HELICOPTER.
Descriptive Note : Final rept. 3 Jan 66-30 Sep 67,
Corporate Author : LITTON SYSTEMS INC MINNEAPOLIS MINN APPLIED SCIENCE DIV
Personal Author(s) : Handman,Arthur L.
Report Date : DEC 1967
Pagination or Media Count : 30
Abstract : A hot-air balloon was used but rejected; a helicopter was also used for measuring electric fields in clouds. Dynamic variations of electric field were detected within growing cumulus clouds; these variations are caused by internal advective and convective motions. Because the magnitudes of the field changes are small, a constant redistribution of space charge carried aloft in the updraft is suggested. A recommendation is made that complete electrical evaluation of cumulus clouds be made: from nucleation to cumulo-nimbus development. A high-performance helicopter should be utilized. (Author)
Descriptors : (*ELECTROSTATIC FIELDS, CUMULUS CLOUDS), (*ELECTROSTATIC FIELDS, MEASUREMENT), BALLOONS, BALLOON EQUIPMENT, HELICOPTERS, INSTRUMENTATION, ATMOSPHERIC MOTION, VOLTAGE, MEASURING INSTRUMENTS, ELECTROMETERS, AIR MASS ANALYSIS
Subject Categories : Meteorology
Electricity and Magnetism
Distribution Statement : APPROVED FOR PUBLIC RELEASE