Accession Number : AD0721862

Title :   The Correlation of Tail-Wind Components and Temperature at SST Levels.

Descriptive Note : Final rept.,

Corporate Author : NATIONAL WEATHER SERVICE SILVER SPRING MD

Personal Author(s) : Lewis,Frank ; Greene,Douglas R. ; McInturff,Raymond

Report Date : JAN 1971

Pagination or Media Count : 33

Abstract : The correlations of tail-wind components and temperatures are obtained for 10 possible SST routes for each season of the year. The correlation coefficients along the routes at the 100-, 70-, 50- and 30-mb surfaces and on arbitrary flight profiles are presented. The correlation coefficients range in magnitude from 0 to 0.6. However the regression coefficients, which are considered more appropriate for planning studies exceed 2 knots/degree in magnitude only in isolated cases. The correlations agree in their general sense with our knowledge of the variation of the general circulation. They should be stable for varying periods of record except in such cases as the Thule-Stockholm route where normal displacements of the polar low at high altitudes may reverse the sign of the correlation. A large volume of statistical and bivariate frequency distribution data was developed in the study and is available on magnetic tapes. This includes wind and temperature relations for 370 stations in a form from which the wind component in any direction may be related to temperature. The results are based on 10 years of observations taken near midnight Greenwich Time. The temperature observations are corrected for solar radiation effects. (Author)

Descriptors :   (*WIND, STRATOSPHERE), (*ATMOSPHERIC TEMPERATURE, STRATOSPHERE), (*FLIGHT PATHS, SUPERSONIC AIRCRAFT), CORRELATION TECHNIQUES, TRANSPORT AIRCRAFT, CORRECTIONS, REGRESSION ANALYSIS, METEOROLOGICAL INSTRUMENTS, SOLAR RADIATION

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE