Accession Number : AD0719005

Title :   Rocket-Borne Photometer Investigation of Noctilucent Clouds.

Descriptive Note : Final rept. 1 Jun 68-1 Feb 71,

Corporate Author : GCA CORP BEDFORD MASS GCA TECHNOLOGY DIV

Personal Author(s) : Smith,Leslie G.

Report Date : FEB 1971

Pagination or Media Count : 49

Abstract : The design, construction, testing and flight performance of a rocket-borne dual-photometer system for investigation of the aerosol particle distribution in a noctilucent cloud is described. One photometer is mounted with the axis of the field of view parallel to the spin axis of the rocket. This photometer is equipped with a polarizer and observes the degree of polarization of the cloud at a particular scattering angle and at a specified wavelength (3750A). The second photometer is oriented at 60 degrees to the spin axis. The intensity of the scattered light is observed over a wide range of scattering angle at a wavelength of 5750A. (Author) 11

Descriptors :   (*PHOTOMETERS, DESIGN), (*CLOUDS, PHOSPHORESCENCE), (*AEROSOLS, DISTRIBUTION), AIRBORNE, SOUNDING ROCKETS, PERFORMANCE(ENGINEERING), RAYLEIGH SCATTERING, POLARIZATION, INTENSITY, LIGHT TRANSMISSION, DIAGRAMS, FLIGHT TESTING, PARTICLES

Subject Categories : Meteorology
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE