Accession Number:

ADA129203

Title:

Investigation of Shear-Induced Turbulence by MST (Mesosphere-Stratosphere-Troposphere Radar).

Descriptive Note:

Final rept. 1 Oct 80-30 Sep 82,

Corporate Author:

ALASKA UNIV FAIRBANKS GEOPHYSICAL INST

Report Date:

1982-09-30

Pagination or Media Count:

32.0

Abstract:

Wind speed and C sub N squared measurements made with the Poker Flat, Alaska MST radar are used to study the development of clear air turbulence CAT near the tropopause. Arguments and observations that indicate C sub N squared is proportional to the intensity of turbulence are presented. The relationship between wind shear and turbulence is examined using time-lagged cross correlations of measured shears and C sub N squared time series. From analysis of data taken with spatial resolutions of 2200 m and 750 m, it is found that the correlation improves as the time and spatial resolutions of the measurements improve. The implications for forecasting CAT are discussed, based on the correlation results and a comparison of radar data with National Weather Service CAT forecasts. Author

Subject Categories:

  • Meteorology
  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE