Accession Number : AD0693526

Title :   EXCHANGE OF AIR MASSES BETWEEN THE STRATOSPHERE AND THE TROPOSPHERE IN THE NORTHERN HEMISPHERE,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Berlyand,O. S. ; Erokhina,R. A. ; Kolacheva,Z. A.

Report Date : 30 JUN 1969

Pagination or Media Count : 9

Abstract : The article presents the results of an investigation of the mechanism of exchange of air masses between the troposphere and stratosphere for given mean annual distributions of temperature in the 0-16 km layer and the distribution of atmospheric pressure on the Earth's surface by finding a wind velocity field for determining the vertical motion of air masses. It was calculated that during a year of air mass weighing 3.10 (superscript 14)T, which amounts to 5 percent of the weight of the entire atmosphere, descends from the tropopause in the 25-35 degree N zone. The weight of the 10-16 km air layer amounted to approximately 1/6 of the weight of the entire atmosphere. Thus, it is concluded that exchange of the entire air mass between the troposphere and stratosphere occurs within about 3.5 years in the 25-35 degree N zone. (Author)

Descriptors :   (*ATMOSPHERIC MOTION, UPPER ATMOSPHERE), TROPOSPHERE, BAROMETRIC PRESSURE, STRATOSPHERE, AIR MASS ANALYSIS, ATMOSPHERIC TEMPERATURE, VELOCITY, EQUATIONS OF MOTION, NORTHERN HEMISPHERE, USSR

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE