Accession Number : AD0731139

Title :   Statistical Analysis of LO-LOCAT Turbulence Data for Use in the Development of Revised Gust Criteria.

Descriptive Note : Technical rept. 1 Mar 69-1 Mar 71,

Corporate Author : DAYTON UNIV OHIO RESEARCH INST

Personal Author(s) : McCloskey,John W. ; Luers,James K. ; Ryan,John P. ; Engler,Nicholas A.

Report Date : APR 1971

Pagination or Media Count : 141

Abstract : LO-LOCAT is an extensive low level turbulence program utilizing statistically representative samples of turbulence data obtained over a wide range of meteorological, topographical, seasonal, and time of day conditions. UDRI has attempted to identify which of the various meteorological and environmental conditions affect the turbulence as reflected through a number of turbulence parameters. The turbulence parameters considered were: sigma, the standard deviation of the gust velocity; b, the turbulence intensity; L, the scale of turbulence; and N(o), the characteristic frequency. The basic method of mathematical analysis was a stepwise regression scheme which related the environmental conditions to the various turbulence parameters based upon statistical priority. It is felt that the regression scheme provides a detailed outline of statistical relationships which can be used as a guide for further investigation. (Author)

Descriptors :   (*CLEAR AIR TURBULENCE, GUST LOADS), (*GUST LOADS, AIRFRAMES), LOW ALTITUDE, TURBULENCE, TERRAIN, PROBABILITY DENSITY FUNCTIONS, POWER SPECTRA, STRUCTURAL PROPERTIES

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE