Comparative study of Showalter's stability index and George's instability value K for predicting local thunderstorm over Calcutta airport

Authors

  • GURBACHAN SINGH
  • C. L. AGNIHOTRI

DOI:

https://doi.org/10.54302/mausam.v25i1.5187

Abstract

 Showalter's stability index and George's instability value K have been calculated for 1200 observations of pre-monsoon months of Calcutta Airport. The results show that George's instability value K gives a better indication for occurrence or non-occurrence of a thunderstorm than Showalter's stability index. It has a1so been found that if the value of George's instability index works out to be 28 or less in the morning or evening radiosonde observation (which happens on about 48 per cent of the total occasions) non-occurrence of a thunderstorm over Calcutta Airport during the next 15 hours can be predicted with reasonable certainty.

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Published

01-01-1974

How to Cite

[1]
G. SINGH and C. L. . AGNIHOTRI, “Comparative study of Showalter’s stability index and George’s instability value K for predicting local thunderstorm over Calcutta airport”, MAUSAM, vol. 25, no. 1, pp. 51–54, Jan. 1974.

Issue

Vol. 25 No. 1 (1974): MAUSAM

Section

Shorter Contribution

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