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Dynamics of the stationary eddies in the lower stratosphere circulation in the wave number domain and monsoon activity

Raja Rao, KS and Awade, ST and Nair, MVH (1984) Dynamics of the stationary eddies in the lower stratosphere circulation in the wave number domain and monsoon activity. Proc. Indian Academy of Sciences (Earth and Planetary Sciences), 93. pp. 1-16.

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Abstract

Meridional transports of momentum and sensible heat have been computed using the Fourier coefficients of the geopotential heights at 50 mb and 30 mb levels for each month during the years 1972 to 1979. Seasonal variations in these transports and in the energy conversionsC (K E ,K Z ) andC (A z ,A E ) in the contrasting years of monsoon activity have been discussed. The transport and the conversion terms undergo annual variations only with winter maxima and summer minima. Large northward transport of momentum and of sensible heat in the low latitude summer and in the high latitude preceeding winter suggests a linkage between monsoon activity and high latitude stratosphere. Seasonal variations in the energy conversion termsC (K E ,K Z ) andC (A Z ,A E ) conform with the changes in the system in the years of widely differing monsoon activity both in low and high latitudes. Large conversion of energy fromA Z toA E in low latitude summer indicates weakening of the existing meridional temperature gradient, in bad monsoon years

Item Type: Article
Additional Information: Copyright of this article belongs to Springer India
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 29 Jan 2016 10:24
Last Modified: 29 Jan 2016 10:24
URI: http://moeseprints.incois.gov.in/id/eprint/3493

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