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Analysis of Rainfall in Assessing the Drought in Semi-arid Region of Karnataka State, India

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  • V. Jayasree
  • B. Venkatesh

Abstract

The present study focuses on drought analysis with an aim to understand the drought vulnerability, estimate and map the drought duration and severity in drought prone North Interior Karnataka region, India. A detailed analysis were carried out using rainfall data of more than 178 (with greater than 30 years data) stations to understand the drought characteristics. Rainfall descriptive variability, percentage occurrence of drought incidences and spatial distribution of rainfall were derived. In order to evaluate the drought severity and its extent and to map, method proposed by Ponce et al. ( 2000 ) and the Geographic Information System has been used. The method by Ponce et al. ( 2000 ) characterize drought based on intensity, duration and recurrence interval using mean annual precipitation of a location. The results obtained for the study area indicate that, the region is mostly semi-arid with drought occur for more than 50 % of the time. The majority of the drought events are of moderate intensity with few extreme intensity events. Further, it is noticed that, in many station, the rainfall show a decreasing trend. Since, rainfall in this region are mostly declining due to climatic change, the area would experience increasing drought severity in the forthcoming years. The outcome of the study would be useful in understanding the drought pattern, severity and extent in the study area which can be used by scientists and water management professionals to plan drought mitigation measures. Copyright Springer Science+Business Media Dordrecht 2015

Suggested Citation

  • V. Jayasree & B. Venkatesh, 2015. "Analysis of Rainfall in Assessing the Drought in Semi-arid Region of Karnataka State, India," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(15), pages 5613-5630, December.
    • Handle: RePEc:spr:waterr:v:29:y:2015:i:15:p:5613-5630
    DOI: 10.1007/s11269-015-1137-1
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    Cited by:

    1. Yuk Feng Huang & Ali Najah Ahmed & Jing Lin Ng & Kok Weng Tan & Pavitra Kumar & Ahmed El-Shafie, 2022. "Rainfall Variability Index (RVI) analysis of dry spells in Malaysia," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 112(2), pages 1423-1475, June.
    2. Kumar Amrit & Rajendra P. Pandey & Surendra K. Mishra, 2018. "Characteristics of meteorological droughts in northwestern India," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 94(2), pages 561-582, November.
    3. Jena, P.R. & Kalli, R., 2018. "Measuring the Impact of Climate Variability on Rice and Finger Millet: Empirical Evidence from a Drought Prone Region of India," 2018 Conference, July 28-August 2, 2018, Vancouver, British Columbia 275970, International Association of Agricultural Economists.

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