Dry and Wet Spells

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Climatological analysis in the form of probabilities is very useful in decision making for agricultural operations. Any information on the probability of weekly rainfall in any district of their concern based on pattern of actual rainfall during the preceding week help in framing need based advisory bulletin to the farmers. It can be suggested to the farmer whether the supplementary irrigation has to be provided or to refrain from application of pesticides and insecticides if chances of rainfall are high. This information has wide application in hydrological purposes and identification of agriculturally vulnerable areas.