A statistical study of the persistency of rain days during the monsoon season at Poona

Authors

  • V. K. RAMABHADRAN

DOI:

https://doi.org/10.54302/mausam.v5i1.4846

Keywords:

Persistency, Poona,

Abstract

A 60-year record of June-September precipitation data for Poona has been user to determine the frequency of rain spells of various lengths. It has been found that the frequencies conform closely to a logarithmic series S ( axr | r ). A method of predicting rain-days based on past rain, making use of the observed frequencies has been illustrated. Also, the use of the constant x of the logarithmic series in persistency forecast is discussed. Finally the skill score of a persistency forecast of a rain-day following a rain period of 1,2…days duration has also been determined. Persistency itself may perhaps be construed as a meteorological factor and it may be possible to improve the accuracy of rain forecasts by applying the persistency theory in addition to the existing synoptic techniques.

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Published

01-01-1954

How to Cite

[1]
V. K. . RAMABHADRAN, “A statistical study of the persistency of rain days during the monsoon season at Poona”, MAUSAM, vol. 5, no. 1, pp. 48–55, Jan. 1954.

Issue

Vol. 5 No. 1 (1954): MAUSAM

Section

Shorter Contribution

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