Saxena, K.K.Gurjeet Kaur2016-12-012016-12-012005http://krishikosh.egranth.ac.in/handle/1/88521In this study, investigations have been carried out for south-west monsoon daily rainfall at Hisar. The daily rainfall data for 79 years (1925-2003) for the period from June to September have been split into 3 phases viz., 1925-1953, 1954-1978 and 1979-2003. These phasewise data have been categorized into 5 states / categories accordingly as non-rainy day (D), light rainy day (W1), moderate rainy day (W2), heavy rainy day (W3) and very heavy rainy day (W4). The transitional probabilities were estimated for all states / categories of occurrence by using Markov chain of order one representing conditional dependence on preceding one day only. The transitional probabilities were estimated by maximum likelihood principle for all the three phases. By using the knowledge of the Shannon’s entropy, the uncertainty (or disorderness) of the transitional system of the south-west monsoon daily rainfall characteristics (such as non-rainy day, light rains, moderate rains, heavy rains and very-heavy rains) have been studied. The favourable or unfavourable condition of different states during the south-west monsoon period at Hisar have also been tested by the redundancy test. It has been found that in the month of June and September the redundancy is more as compared to July and August. For the whole season i.e. June to September, the redundancy test confirms the favourableness of Markov chain of order one at Hisar.enThesis