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Information Journal Paper

Title

Analysis of the Duration and Severity of Agricultural Drought in Recent Half Century Using the Modified ETDI Method and Comparing it with the SPI in Shahrekord Plain

Author(s)

 RADFAR M. | Issue Writer Certificate 

Pages

  49-61

Abstract

 Severity and Duration of Agricultural droughts have distressed farmers worldwide by triggering hazards for agricultural products. Droughts are a widespread natural threat with tremendous social impact (Alston and Kent, 2004; Glantz, 1987). They are most often caused by a significant drop in precipitation from the normal amount. Agriculture is often the first sector to be affected by the onset of drought due to its dependence on water resources and soil moisture reserves during various stages of crop growth (Narasimhan and Srinivasan, 2005). Recent studies show that the frequency and Severity of droughts seems to be increasing in some areas as a result of climate variability and climate change (IPCC, 2007; Patz et al., 2005; Sheffield and Wood, 2008; Lehner et al., 2006). Among various drought indices, Palmer Drought Severity Index (PDSI) (Palmer, 1965), Crop Moisture Index (CMI) (Palmer, 1968), Standardized Precipitation Index (SPI) (McKee et al., 1993), Surface Water Supply Index (SWSI) (Shafer and Dezman, 1982), and The ETDI (Narasimhan and Srinivasan, 2005) are used extensively for water resources management as well as for Agricultural drought monitoring and forecasting. In this study, the Agricultural droughts during the recent half-century were evaluated by the modified ETDI method and compared with the SPI as well as meteorological drought index in Shahrekord Plain. The results show that the estimation of modified ETDI by SPI3 is applicable.

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    APA: Copy

    RADFAR, M.. (2020). Analysis of the Duration and Severity of Agricultural Drought in Recent Half Century Using the Modified ETDI Method and Comparing it with the SPI in Shahrekord Plain. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 43(2 ), 49-61. SID. https://sid.ir/paper/374994/en

    Vancouver: Copy

    RADFAR M.. Analysis of the Duration and Severity of Agricultural Drought in Recent Half Century Using the Modified ETDI Method and Comparing it with the SPI in Shahrekord Plain. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2020;43(2 ):49-61. Available from: https://sid.ir/paper/374994/en

    IEEE: Copy

    M. RADFAR, “Analysis of the Duration and Severity of Agricultural Drought in Recent Half Century Using the Modified ETDI Method and Comparing it with the SPI in Shahrekord Plain,” IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 43, no. 2 , pp. 49–61, 2020, [Online]. Available: https://sid.ir/paper/374994/en

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