THEORETICAL STUDIES OF THE ATMOSPHERIC BOUNDARY LAYER.

Abstract

A two-dimensional time dependent numerical model of the atmospheric boundary layer is formulated and used to investigate various characteristics of air motion when a change occurs in roughness and/or temperature characteristics of the underlying surface. The integrations have been carried out for steady-state situations also. The model incorporates the effects of penetrative convection, diabatic influence associated with small-scale eddy diffusion, and pressure effects induced by horizontal nonuniformity of terrain in temperature and roughness. The results show that warm surfaces do not necessarily increase the height of internal boundary layers in the vicinity of surface discontinuity. The effects of discontinuity are quite appreciable at large fetches downwind from the discontinuity. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0673201

Entities

People

  • Chandrakant M. Bhumralkar
  • Mariano A. Estoque

Organizations

  • University of Miami

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Convection
  • Diffusion
  • Discontinuities
  • Layers
  • Roughness
  • Steady State
  • Two Dimensional

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Atmospheric Science/Meteorology
  • Fluid Dynamics.