Absolute angular momentum generation & its vertical transport in the field of mid-tropospheric cyclones

Authors

  • D. K. U. R. BHAGAT India Meteorological Department, Pune – 411 005, India

DOI:

https://doi.org/10.54302/mausam.v56i4.1025

Keywords:

Angular momentum, Flux of angular momentum, Shearing stress

Abstract

A  quasi-stationary   synoptic  system  is  usually  seen  on  the  weather  charts   during     southwest monsoon period over the north-east Arabian Sea and adjoining area of Gujarat and north Konkan. The transport of absolute angular momentum, for the atmospheric weather systems, plays a significant role during the southwest monsoon period.

In this paper, the mean absolute angular momentum and its vertical transport associated with MTC have been discussed. The expected accumulation of momentum throughout the troposphere upto 800 km around the centre of MTC has been calculated and displayed. The transport of angular momentum to the underlying surface and momentum loss or gain has also been discussed. Estimates have been made of surface stress by means of angular momentum transferred.

The study reveals that the flux of angular momentum found to be dominated mostly between surface and 500 hPa and the values of shearing stress are positive from the centre of MTC to 500 km.

 

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Published

03-10-2005

How to Cite

[1]
D. K. U. R. BHAGAT, “Absolute angular momentum generation & its vertical transport in the field of mid-tropospheric cyclones”, MAUSAM, vol. 56, no. 4, pp. 759–764, Oct. 2005.

Issue

Vol. 56 No. 4 (2005): MAUSAM

Section

Research Papers

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