Characteristics of the Turbulent Diffusion Parameters as Related to Stability

Abstract

ECOM5468(*atmospheric motion, diffusion), wind, turbulence, equations of motion, stability*atmospheric density, *diffusionThe objective of this study was to demonstrate the extent to which a difference in temperature (delta T) between two levels near the ground (static atmospheric stability) and the ratio z/L (dynamic atmospheric stability) is related to other parameters indicative of turbulence and diffusion. The data show, assuming that the rate of diffusion is determined by the intensity of turbulence, that (delta T) measured through a shallow layer near the ground is not a good indicator of diffusion rates, particularly when the atmosphere is statically unstable. The ratio z/L does not appear to be a significantly better indicator for defining atmospheric stability than (delta T) during highly unstable conditions.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1972
Accession Number
AD0753350

Entities

People

  • James R. Scoggins
  • Manuel Armendariz

Organizations

  • Atmospheric Sciences Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Atmospheric Motion
  • Atmospheric Sciences
  • Boundary Layer
  • Diffusion Coefficient
  • Equations
  • Heat Energy
  • Measurement
  • Meteorology
  • New Mexico
  • Temperature Gradients
  • Turbulence
  • Turbulent Diffusion
  • Two Dimensional
  • United States
  • Wind
  • Wind Direction
  • Wind Velocity

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Dynamics.
  • Regression Analysis.