Rainfall variability analysis at Gadhinglaj
2000
Gare, B.N. | More, S.M. | Jadhav, A.S. | Burli, A.V. | Mokashi, D.D. (Agricultural Research Station, Gadhinglaj (India))
The daily rainfall data for 28 years (1969 to 1996) recorded at Agricultural Research Station Gadhinglaj. Dist - Kolhapur were analysed for annual, seasonal, monthly and weekly periods and weekly railfall probabilities ( = 20 mm rain fall / week were worked out. The mean annual rain fall was 931.1 mm: out of this 75% is received during southwest monsoon and 14% from northeast monsoon. Trend values were around the mean. There is a 39% chance of getting more than normal rainfall. Sowing rains commence from 18 June. Comparatively less variation in weekly rainfall was observed during 28 to 32 MW (CV 73 to 98%) in kharif and 39 MW (C.V. 68%) in rabi. Initial probabilities exceeded 75% probability rains could be expected from MW 28 to 31 in kharif and 39 MW in rabi. Rainfall probabilities 50% probability rains from MW 34 to 37 indicates chances of dry spells during kharif season. Conditional probabilities (W/D) exceeding 80% in MW 29 shows suitability of 28th MW for dry seeding.
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