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Sri Krishnadevaraya University (1996)

Drought climatology water balance and development of land and water resources of Kurnool district Andhra Pradesh India

Raju,B. Samuel

Titre : Drought climatology water balance and development of land and water resources of Kurnool district Andhra Pradesh India

Auteur : Raju,B. Samuel

Université de soutenance : Sri Krishnadevaraya University

Grade : Doctor of Philosophy (PhD) 1996

Résumé partiel
1. The mean monthly analysis of rainfall revealed that in the months of August and September the rainfall exceeds 1G0 mm in all the stations of the district in the months of June, July and October the rainfall varies from 50 mm to 100 mm in May, November and December months the rainfall varying from 20 mm to 50 mm in April months it is 10 mm to 20 mm. It is less than 10 mm in January, February and March months.
2. The rainfall intensity is low in January, February and March months if is high in August, September and October months and moderate in other months._
3. The rainfall variability is very high in January, February, March and December months and low in June, July, August and September months.
4. The rainfall ratio are very high in January, February, March and December months, high in April, May, October and November months. The values are low to moderate in June, July, August and September months.
5. From the study of monthly rainfall analysis it is concluded that during the months of June, July, August and September months there is greater stability in rainfall and climatologically highly favourable for crop cultivation storage of surface water resources and rechange.
6. The seasonal analysis of mean rainfall revealed that during the southwest monsoon period the district receives high rainfall followed by northeast monsoon period rainfall is low in winter and summer periods. The rainfall intensity is high during southwest and northeast monsoon periods. The rainfall stability is also high during these periods.
7. The mean annual rainfall of the district is 751.68 mm the total surface water resources of the district is 13,273,165,000 M3 of this about 107. is stored in reservoirs, tanks, ponds, etc. is rechanged to ground water is lost in the form of evoporation and evapotransporation _ 8. The decadal variations in rainfall it is concluded that during winter period that from 1901-10 to 1931-40 is a good period followed by a bad period from 1941-50 to 1971-80. During summer period there is a decreasing trend in mean rainfall from 1901-10 to 1921-30 and 1951-60 to 1961-70 during 1971-80 and 1981-90 there is an increasing trend in the mean rainfall. During southwest monsoon period it is found from 1901-10 to 1941-50 there is a good rainfall period followed by a bad rainfall period from 1951—60 to 1981-90. In northeast monsoon period it is noticed that during 1911-20 to 1931-40 there is a good period followed by a bad period of 3 decades and from 1971-90 to 1981-90 there is an increasing trend in rainfall. The annual decadal variations in mean rainfall are increasing trend of mean rainfall from 1901-10 to 1931-40 followed by a decreasing trend from 1941-50 to 1961-70.

Mots clés : Climatology Water Land Rainfall Seasonal

Présentation et version intégrale

Page publiée le 17 septembre 2016, mise à jour le 1er février 2021