Assessment of Spatial and Temporal Drought Severity: A Study in Transition Zone of Karnataka State in India
Seedari Ujwala Rani, Pramod Kumar, Naveen P. Singh, Dharam Raj Singh, S. K. Srivastava, Ranjit Kumar Paul, R. N. Padaria, Sirisha Tadigiri
International Journal of Environment and Climate Change · pp. 95–106 · Published 1 Apr 2022
10.9734/ijecc/2022/v12i730705Abstract
Rainfall data from 1979-2019 was analysed across the agro climatic zones in transition region of Karnataka. Rainfall Anomaly Index and Mean deviation methods are used to identify drought years and wet years over both spatial and temporal on time scale. The North Eastern Transition Zone can be considered as most vulnerable zone as it recorded for about 24 dry years values which indicates existence of persistence drought in this zone. The Northern Transition Zone is not vulnerable when compared to Northern Eastern Transition Zone as most of the drought year values are nearer to wet year values (RAI -0.3 to -1.2) which implies that this zone has moderate drought condition. The Southern transition zone has normal drought condition (RAI +0.3 to -0.3) which implies neither wet nor neither dry condition. But if proper conservations were not taken, this zone may come in the hit list of most vulnerable zone in near future which will harm the farming community.
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