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Thermodynamic structure of the boundary layer in relation to a monsoon depression over the Bay of Bengal - A case study

Seetaramayya, P and Parasnis, SS and Nagar, SG and Vernekar, KG (1993) Thermodynamic structure of the boundary layer in relation to a monsoon depression over the Bay of Bengal - A case study. Boundary-Layer Meteorology, 65 (3). pp. 307-314.

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Abstract

Aerological observations carried out on board ORV Sagarkanya at a stationary location (20° N, 89° E) over the Head Bay of Bengal during August 18-21, 1990 were analysed to study the thermodynamic structure of the marine boundary layer in relation to a monsoon depression which formed in situ with its centre at 20° N, 88° E. The q(mixing ratio) reversal observed at 850 hPa prior to formation of the low pressure area shifted to a higher level (h<700 hPa) with the formtion of the low. Positive buoyancy below 850 hPa prior to the formation of the low indicated conditions favourable for deep convection. When the low pressure area intensified into a depression, negative buoyancy was observed at lower levels.

Item Type: Article
Additional Information: Copyright of this article belongs to Kluwer Academic Publishers
Uncontrolled Keywords: boundary layer; depression; marine boundary layer; monsoon; thermodynamic properties; thermodynamic structure; tropical depressions, Bay of Bengal, Boundary Layers; Meteorology; Monsoon; Thermodynamics
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 02 Jun 2015 09:36
Last Modified: 02 Jun 2015 09:36
URI: http://moeseprints.incois.gov.in/id/eprint/1066

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