Accession Number : AD0430498


Title :   THE MEASUREMENT OF HIGH ALTITUDE WIND VELOCITIES FROM VAPOUR RELEASES. II,


Corporate Author : QUEEN'S UNIV BELFAST (NORTHERN IRELAND)


Personal Author(s) : Smith,F J


Report Date : Jan 1943


Pagination or Media Count : 22


Abstract : A digital computer method is described for determining accurately and quickly the position in space of either a luminous vapour trail or a small luminous vapour cloud. The position is found by analysing data from photographs of the object and of the star field from at least two camera positions. A correction is included to take account of the curvature of the Earth's surface. (Author)


Descriptors :   *CLOUDS , COMPUTER PROGRAMMING , CONDENSATION TRAILS , HIGH ALTITUDE , VAPORS , VECTOR ANALYSIS , SPHERES , ASTRONOMY , LEAST SQUARES METHOD , CLOUD HEIGHT INDICATORS


Distribution Statement : APPROVED FOR PUBLIC RELEASE