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Role of barotropic mechanism in the development of a monsoon depression: A MONEX study

Subrahmanyam, D and Tandon, MK and George, L and Mishra, SK (1981) Role of barotropic mechanism in the development of a monsoon depression: A MONEX study. Pure and Applied Geophysics PAGEOPH, 119 (5). pp. 901-912.

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Abstract

The role of barotropic processes in the development of a monsoon depression, formed on 5 July 1979 during MONEX observational period, is studied by considering it as a quasi-geostrophic divergent barotropic instability problem of zonal flow of 3 July 1979 at 700 mb level. Numerical solutions are obtained by initial value approach. The preferred wave has a wavelength of 2750 km, an e-folding time of 4.3 days, a period of 6.5 days and an eastward phase speed of 4.9 ms-1. Structure of preferred wave is found to be in good agreement with the observed horizontal structure of the depression at 700 mb. Poleward momentum transports are found to predominate over equatorward transports.

Item Type: Article
Additional Information: Copyright of this article belongs to Birkhauser
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 10 Apr 2015 09:49
Last Modified: 10 Apr 2015 09:49
URI: http://moeseprints.incois.gov.in/id/eprint/1339

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