Accession Number : AD0673201

Title :   THEORETICAL STUDIES OF THE ATMOSPHERIC BOUNDARY LAYER.

Descriptive Note : Final rept.,

Corporate Author : MIAMI UNIV CORAL GABLES FLA INST OF ATMOSPHERIC SCIENCE

Personal Author(s) : Estoque,Mariano A. ; Bhumralkar,Chandrakant M.

Report Date : JUN 1968

Pagination or Media Count : 57

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)

Descriptors :   (*ATMOSPHERIC MOTION, MATHEMATICAL MODELS), (*ATMOSPHERES, BOUNDARY LAYER), PRESSURE, CONVECTION(ATMOSPHERIC), SURFACE TEMPERATURE, TERRAIN, NUMERICAL INTEGRATION, SURFACE ROUGHNESS, PENETRATION, DIFFUSION

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE