Accession Number : ADA188936

Title :   Polar Mesospheric Cloud Experiment.

Descriptive Note : Annual rept. 1 Jul 86-1 Jul 87,

Corporate Author : COLORADO UNIV AT BOULDER LAB FOR ATMOSPHERIC AND SPACE PHYSICS

Personal Author(s) : Thomas, Gary E

PDF Url : ADA188936

Report Date : 21 Sep 1987

Pagination or Media Count : 30

Abstract : This project consists of the design and fabrication of a satellite-borne ultraviolet atmospheric experiment. The components of the instrument will both image and make quantitative polarization measurements of the scattered light from polar mesospheric clouds (PMC) occuring in the high-latitude summertime mesosphere at heights of 85 km. Its scientific objectives are: 1) to determine the morphology, scattering and attenuation properties, occurrence frequency statistics, and statistical distribution of spatial scales of PMC and other aerosol layers in the upper mesosphere; 2) to derive information on the atmospheric wave activity in the summertime mesosphere over all horizontal spatial scales greater than about 2 kilometers; and 3) to determine the mean particle size of PMC particles, to characterize its dependence on latitude, longitude, wave activity and PMC brightness.

Descriptors :   *CLOUDS, *LIGHT SCATTERING, *MESOSPHERE, AEROSOLS, ATMOSPHERES, HORIZONTAL ORIENTATION, INSTRUMENTATION, LATITUDE, LAYERS, MEAN, MEASUREMENT, PARTICLE SIZE, PARTICLES, POLAR REGIONS, POLARIZATION, SPATIAL DISTRIBUTION, STATISTICAL DISTRIBUTIONS, RADIATION ATTENUATION, ULTRAVIOLET RADIATION

Subject Categories : Meteorology
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE