AN ANALYSIS OF SEVERITY DURATION AND FREQUENCY OF CLIMATOLOGICAL DROUGHT IN SIX BASINS LOCATED IN WEST AND NORTH WEST OF IRAN

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LASHANIZAND M.

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Journal: RESEARCH BULLETIN OF ISFAHAN UNIVERSITY (HUMANITIES) Year:2004 | Volume:16 | Issue:1 Page(s): 0-0

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Title

AN ANALYSIS OF SEVERITY DURATION AND FREQUENCY OF CLIMATOLOGICAL DROUGHT IN SIX BASINS LOCATED IN WEST AND NORTH WEST OF IRAN

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LASHANIZAND M. | Issue Writer Certificate

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Abstract

Drought is a normal feature of climate. It occurs in regions with quite different climatic regimes. In any region, one of the most important evaluation stages of drought condition is defining drought indices in order to analyze severity, duration and frequency of drought in any region. In present study, standardized precipitation index was selected because of its advantage in regional analysis and temporal connection between drought occurrences in different sections of the study area. Then monthly drought zoning maps were prepared by using GIS softwares such as Ilwis and Arc view. By means of Runs theory and SPI, time series for all of the stations and drought intensity time series in any basins were calculated. Droughts with more than one-month duration were derived. Then severity, duration and frequency of drought curves were drawn. By analysis of severity, duration and frequency of drought curves and tables of meteorological station and six basins, it has been evident that drought occurred with one to three month duration. Even in the wet station, there was a recurrence and normal phenomena

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APA: Copy

LASHANIZAND, M.. (2004). AN ANALYSIS OF SEVERITY DURATION AND FREQUENCY OF CLIMATOLOGICAL DROUGHT IN SIX BASINS LOCATED IN WEST AND NORTH WEST OF IRAN. RESEARCH BULLETIN OF ISFAHAN UNIVERSITY (HUMANITIES), 16(1), 0-0. SID. https://sid.ir/paper/361189/en

Vancouver: Copy

LASHANIZAND M.. AN ANALYSIS OF SEVERITY DURATION AND FREQUENCY OF CLIMATOLOGICAL DROUGHT IN SIX BASINS LOCATED IN WEST AND NORTH WEST OF IRAN. RESEARCH BULLETIN OF ISFAHAN UNIVERSITY (HUMANITIES)[Internet]. 2004;16(1):0-0. Available from: https://sid.ir/paper/361189/en

IEEE: Copy

M. LASHANIZAND, “AN ANALYSIS OF SEVERITY DURATION AND FREQUENCY OF CLIMATOLOGICAL DROUGHT IN SIX BASINS LOCATED IN WEST AND NORTH WEST OF IRAN,” RESEARCH BULLETIN OF ISFAHAN UNIVERSITY (HUMANITIES), vol. 16, no. 1, pp. 0–0, 2004, [Online]. Available: https://sid.ir/paper/361189/en

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