Lapse rate change due to advection at lower levels and occurrence of pre-monsoon thunderstorms

Authors

  • M. GANGOPADHYAYA
  • B. L. BOSE

DOI:

https://doi.org/10.54302/mausam.v9i2.4784

Abstract

Using the method of vertical wind shear vector difference, the change in lapse rate brought about by advection alone (upto a height of 5000-7000 ft) was estimated for Calcutta from the upper wind data of 0200 GMT ascent for every day, spread over a period of one month of the usual peak activity of nor'westers which (violent thunderstorms). This change applied to the morning tephigram is found to provide a moderately successful tool for prediction of local afternoon thunderstorms. The percentage of success for the period studied is nearly 80 per cent.

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Published

1958-04-01

Issue

Vol. 9 No. 2 (1958): MAUSAM

Section

Shorter Contribution

Categories

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How to Cite

[1]
“Lapse rate change due to advection at lower levels and occurrence of pre-monsoon thunderstorms”, MAUSAM, vol. 9, no. 2, pp. 137–144, Apr. 1958, doi: 10.54302/mausam.v9i2.4784.