Accession Number : AD0861980

Title :   Flow of Moist Air Near the Ground II.

Descriptive Note : Semi-annual rept.,

Corporate Author : INSTITUTE FOR STORM RESEARCH HOUSTON TX

Personal Author(s) : Freeman, John C. ; Miller, Francis ; Rosenberg, Sam B. ; Sloss, Peter W. ; Tang, Wen

Report Date : SEP 1969

Pagination or Media Count : 116

Abstract : The study of the drifting motion of air, clouds and smoke plumes in and around mountains has been overshadowed in meteorology by the study of mountain lee waves and the effect of heating on mountain and valley winds. This drifting motion is guided by the general wind flow, and the interplay of stability and moisture distribution with the air motion. Flow in the monsoon regions, which is characterized by a strong inversion with a wind shift, is the primary concern of this study. Similar effects to those reported here can be expected in other areas but the examples and the assumption here will be aimed toward consideration of a one-half mile to three mile deep inversion over or near mountainous terrain in the low latitudes. Air motion near mountains is described as being primarily parallel to the mountain contours. This is developed from the practical point of view with reference to theory. The flow of the air in the Northern Hemisphere can be inferred from the cloud distribution on the slope: i.e., where the mountain is on the left of the flow, the mountain will be clear. The effects of ground cover on forest canopy give indication of the profile to be expected. Stability of the wind profile can affect the flow. The qualitative effects of these flows on plumes are given. (Author)

Descriptors :   (*ATMOSPHERIC MOTION, TROPICAL REGIONS), MOISTURE, TERRAIN, ATMOSPHERIC TEMPERATURE, HUMIDITY, MOUNTAINS, ATMOSPHERIC PRECIPITATION, METEOROLOGICAL RADAR, DIFFERENTIAL EQUATIONS, TREES, CLOUDS, STABILITY, COMPUTER PROGRAMMING, MATHEMATICAL ANALYSIS.

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE