Accession Number : ADA183543

Title :   Initial Processing of Space Shuttle Cloud Photographs. Phase 1.

Descriptive Note : Final rept. Aug 86-Feb 87,

Corporate Author : CHASE CONSULTING CO SAN DIEGO CA

Personal Author(s) : Volfson,Leonid B ; Peet,Charles ; Gautier,Catherine

PDF Url : ADA183543

Report Date : 28 Mar 1987

Pagination or Media Count : 70

Abstract : In this report techniques are described for the computer analysis of the series of photographs of specific cloud scenes taken from the orbiting space shuttle. A method for extracting high resolution navigational information from the space shuttle hand-held camera imagery has been developed. Also, methods are applied which differentiate cloudy from clear areas with both ocean and land backgrounds and over a wide range of viewing geometries. Three specific objectives are achieved: (1) Develop and implement high resolution digitization of the photographic transparencies so they can be automatically processed by the computer; (2) Develop and implement rectification techniques that will provide angle from nadir. Geographical and scale information that can be associated with each feature on the transparencies; (3) Apply a statistical cloud classification technique to assess the amount and the spatial variability of the cloud fields. This work should be carried forward in Phase II to produce a fully operational methodology to enable the benefits of this research to be realized in a real-time assessment environment. Cloud properties studies can provide a potentially valuable new tool for improving weather prediction and meteorological assessment studies.

Descriptors :   *CLOUDS, *PHOTOGRAPHIC ANALYSIS, CLOUD COVER, COMPUTER APPLICATIONS, ANALOG TO DIGITAL CONVERTERS, HIGH RESOLUTION, SPACE SHUTTLES, METEROLOGY, REAL TIME, ANALOG TO DIGITAL CONVERTERS, VARIATIONS, CLASSIFICATION, STATISTICAL PROCESSES, WEATHER FORECASTING, TRANSPARENCIES, RANGE(EXTREMES)

Subject Categories : Meteorology
      Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE