Accession Number : AD0766090

Title :   A Two-Channel Interference-Filter Photometer Digital Recording System at the AFCRL Geopole Observatory, Thule, Greenland.

Descriptive Note : Instrumentation papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Mullen,Edward G. ; Lloyd,John W. F. ; Davis,Daniel J. , Jr

Report Date : 18 JUN 1973

Pagination or Media Count : 18

Abstract : A two-channel digital photometer system installed at the AFCRL Geopole Observatory, Thule, Greenland is described, and data from the system over the 1972 to 1973 optical observing season are presented. Results show that intensities of (OI)(lambda)5577 A can be obtained over long periods of time under varied observational conditions with high reliability. The system makes it economically feasible to study long- and short-term variations and correlations of fast time resolution optical data. (Author)

Descriptors :   (*PHOTOMETERS, DIGITAL RECORDING SYSTEMS), ATMOSPHERIC SOUNDING, UPPER ATMOSPHERE, OXYGEN

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE