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Thermodynamic features of the atmospheric boundary layer during the summer monsoon

Parasnis, SS and Goyal, SS (1990) Thermodynamic features of the atmospheric boundary layer during the summer monsoon. Atmospheric Environment - Part A General Topics, 24 A (4). pp. 743-752.

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Abstract

Characteristic variations in the thermodynamic parameters of the boundary layer at Pune (18°32′N, 73°51′E, 559m a.s.l.) have been studied using the aerological observations collected during the summer monsoon seasons of 1980 and 1981, and the temperature observations from aircraft during the summer monsoons of 1976, 1979–1981. This study showed suppression of the mixed layer, absence of inversion/stable layers and decreased convective instability in the lower layers during the period of active monsoon conditions. The reverse was observed during the periods of weak/break monsoon conditions. Temperature stratification of sub-cloud layer has been classified into four different categories depending on the extent of the mixed layer and the gradient of potential temperature in the overlying stable layer. It was observed that these categories cover all types of weather, conditions which prevailed during the monsoon season. The results are discussed with the possible association of the weather conditions prevailed during the active and break monsoon periods

Item Type: Article
Additional Information: Copyright of this article belongs to Pergamon Press
Uncontrolled Keywords: Aerodynamics--Boundary Layer; Atmospheric Movements; Rain and Rainfall--India, Aerological Observations; Atmospheric Boundary Layer; Potential Temperature; Pune, India; Summer Monsoon, Atmospheric Thermodynamics, rain, boundary layer; conference paper; india; thermodynamics, boundary layer; monsoon; thermodynamics, India
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 02 May 2015 05:04
Last Modified: 02 May 2015 05:04
URI: http://moeseprints.incois.gov.in/id/eprint/1145

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