Stratospheric Turbulence and Vertical Effective Diffusion Coefficients
Abstract
Computations of the observed frequency distribution of the magnitudes of vertical shears of horizontal winds between 5 and 20 km altitude are reported. The probability distribution of turbulent layers for various values of vertical thickness is discussed. An effective vertical-diffusion coefficient, Ke, is estimated from a simple model using this empirical turbulence probability distribution. Specifically, the authors calculate the effect of clear-air turbulence (CAT) upon vertical transport, using a model consisting of a vertical column of thin, randomly-spaced mixing (turbulent) layers separated by thick non-mixing atmospheric layers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 29, 1975
- Accession Number
- ADA019708
Entities
People
- E. M. Dewan
- N. W. Rosenberg
Organizations
- Air Force Cambridge Research Laboratories