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Persistence in daily and 5-day summer monsoon rainfall over India

Singh, SV and Kripalani, RH and Shaha, P and Ismail, PMM and Dahale, SD (1981) Persistence in daily and 5-day summer monsoon rainfall over India. Archives for Meteorology, Geophysics, and Bioclimatology Series A, 30 (3). pp. 261-277.

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Persistence in daily rainfall occurrence during the peak summer monsoon months of July–August has been studied for 22 stations, widely spread over the country. The logarithmic, Markov chain order 1 and 2 and modified logarithmic models are fitted to the runs of wet and dry days to examine the nature of persistence and the fitness tested byX 2 tests. Markov chain order 2 (modified logarithmic model) fits to the runs of dry spells (wet spells) better than the other models. The logarithmic model is found to be a poor fit for both types of spells. Persistence in daily and 5-day precipitation amounts and in daily expected areal coverage of precipitation is examined by computing auto-correlation coefficients for various lags. Persistence in 5-day precipitation amount and in 5-day expected areal coverage of precipitation is also examined by constructing 3 × 3 contingency tables. All these results show that persistence is more prominently exhibited in certain parts of central and western India

Item Type: Article
Additional Information: Copyright of this article belongs to Springer-Verlag
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 10 Apr 2015 09:52
Last Modified: 10 Apr 2015 09:52

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