Accession Number : AD0735941

Title :   Developing Techniques for Automated Forecasting of Clear Air Turbulence.

Descriptive Note : Final rept.,

Corporate Author : NATIONAL WEATHER SERVICE SILVER SPRING MD TECHNIQUES DEVELOPMENT LAB

Personal Author(s) : Lewis,Frank ; Greene,Douglas R. ; Saffle,Robert E. ; Helmick,Benjamin W.

Report Date : NOV 1971

Pagination or Media Count : 39

Abstract : The work reported is directed toward adapting the scheme developed by the Stanford Research Institute for automated forecasting of Clear Air Turbulence (CAT). An important element of the scheme is the relation of CAT OCCURRENCE TO METEOROLOGICAL PARAMETERS. Multi-dimensional contingency tables are developed for specifying the probability of occurrence of CAT from values of meteorological parameters. The table generating procedure will require modification to solve the problem of the sparcity of data which occurs in some of the cells of the tables. Nevertheless, the reductions of variance obtained with the developmental set of data suggest that multi-dimensional contingency tables may produce effective specification of the probability of CAT from meteorological parameters in an automated system. (Author)

Descriptors :   (*CLEAR AIR TURBULENCE, MATHEMATICAL PREDICTION), (*WEATHER FORECASTING, CLEAR AIR TURBULENCE), ANALYSIS OF VARIANCE, CORRELATION TECHNIQUES, REGRESSION ANALYSIS, METEOROLOGICAL PHENOMENA, PROBABILITY, TABLES(DATA)

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE