Energetics of zonal waves during different phases of monsoon

Authors

  • S. M. BAWISKAR
  • M. D. CHIPADE
  • S. S. SINGH

DOI:

https://doi.org/10.54302/mausam.v53i1.1612

Keywords:

Energetics, Fourier technique, Phases, Intra-seasonal

Abstract

Energetics of lower tropospheric zonal waves during onset, established and withdrawal  phases of monsoon have been studied for 1994, 1995 and 1996.  The analysis show that energetics of wave 0 over R1 (10°S-10°N), long waves (waves 1-2) over R2 (10°N - 30°S) and  short waves (waves 3-10) over R3 (30° N - 50° N)  influence the monsoon activity over India on intra-seasonal scale.

 

The weekly analysis of the energetics of zonal waves indicates that the momentum transport of wave 0 over latitudinal belt  L0 (12° S - 3° N),  wave 1 over the belt L1(10° N - 15° N)  and wave 2 over the belt  L2 (33° N - 45° N) is related to all India  rainfall on a weekly scale.  Larger southward momentum transport of wave 0  over L0 and larger northward momentum transport of wave 1  over L1 and wave 2 over L2 enhance the monsoon activity over India.

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Published

01-01-2002

How to Cite

[1]
S. M. . BAWISKAR, M. D. . CHIPADE, and S. S. . . SINGH, “Energetics of zonal waves during different phases of monsoon”, MAUSAM, vol. 53, no. 1, pp. 1–8, Jan. 2002.

Issue

Vol. 53 No. 1 (2002): MAUSAM

Section

Research Papers

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