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Analysis and Forecasting of Drought by Developing a Fuzzy-Based Hybrid Index in Iran


  • Moghaddasi, Reza
  • Eghbali, Alireza
  • Lakhaye Rizi, Parisa


Drought is the most important and destructive climate phenomenon which is usually of importance in a regional scale. Therefore, this study offers a fuzzy-based hybrid index in order to analyze the regional drought in Abadan and khoramshahr, Khuzestan, Iran. Influencing all aspects of human activity, drought does not have a comprehensive definition and an appropriate and general index to explore it. Consequently, in order to develop a model to evaluate and analyze drought, the fuzzy model has been used. The application of fuzzy logic to examine drought in Abadan-khoramshahr station demonstrated that fuzzy logic enables us to examine drought more accurately and appropriately because it takes into account the type of product (wheat or dates) in calculating the probability of drought. In furtherance of this aim, the fuzzy function related to the standardized Precipitation Index (SPI) and the standardized evapotranspiration index (SEI) have been combined and a new indicator called the standardized evapotranspiration and Precipitation index (SEPI) was developed. In the final fuzzy model, 81 rules have been utilized. In this study, the annual data of wheat and dates from 1994 to 2012 have been utilized (sometimes 2013 data have been used), and on this basis, the results of the model revealed that severe and continued droughts have occurred in 1999, 2007 and 2009 and the probability of drought for wheat and dates was 64.29 and 57.14 percent respectively in this period.

Suggested Citation

  • Moghaddasi, Reza & Eghbali, Alireza & Lakhaye Rizi, Parisa, 2014. "Analysis and Forecasting of Drought by Developing a Fuzzy-Based Hybrid Index in Iran," MPRA Paper 53153, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:53153

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    References listed on IDEAS

    1. Antoine Leblois & Philippe Quirion & Agali Alhassane & Seydou Traoré, 2014. "Weather Index Drought Insurance: An Ex Ante Evaluation for Millet Growers in Niger," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 57(4), pages 527-551, April.
    2. Enjolras, Geoffroy & Capitanio, Fabian & Adinolfi, Felice, 2012. "The Demand for Crop Insurance: Combined Approaches for France and Italy," Agricultural Economics Review, Greek Association of Agricultural Economists, vol. 13(1), January.
    3. de Janvry, A. & Dequiedt, V. & Sadoulet, E., 2014. "The demand for insurance against common shocks," Journal of Development Economics, Elsevier, vol. 106(C), pages 227-238.
    4. Ramsay, Colin M. & Oguledo, Victor I. & Pathak, Priya, 2013. "Pricing high-risk and low-risk insurance contracts with incomplete information and production costs," Insurance: Mathematics and Economics, Elsevier, vol. 52(3), pages 606-614.
    5. Delavari, Majid & Mohammadali, Hanieh & Naderi, Esmaeil & Gandali Alikhani, Nadiya, 2011. "The sources of Iran's Business Cycles," MPRA Paper 46756, University Library of Munich, Germany.
    6. Gil, Marina & Garrido, Alberto & Gómez-Ramos, Almudena, 2011. "Economic analysis of drought risk: An application for irrigated agriculture in Spain," Agricultural Water Management, Elsevier, vol. 98(5), pages 823-833, March.
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    More about this item


    Water Requirement; Probability of Drought; wheat; dates; SEPI;

    JEL classification:

    • C15 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Statistical Simulation Methods: General
    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products
    • Q12 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets
    • R11 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Regional Economic Activity: Growth, Development, Environmental Issues, and Changes

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