ANALYSIS OF DROUGHT SPATIAL STATISTICS IN IRAN

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HEJAZIZADEH ZAHRA; JAVIZADEH SAEED

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Journal: JOURNAL OF GEOGRAPHICAL SCIENCES Year:2019 | Volume:19 | Issue:53 Page(s): 251-277

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Title

ANALYSIS OF DROUGHT SPATIAL STATISTICS IN IRAN

Author(s)

HEJAZIZADEH ZAHRA | JAVIZADEH SAEED | Issue Writer Certificate

Keywords

DROUGHTQ2

SPATIAL STATISTICSQ1

MORAN STATISTICSQ1

ZONINGQ2

IRANQ2

Abstract

DROUGHT is one of the environmental events and an inseparable part of climatic fluctuations. This phenomenon is one of the main characteristics of the various climates. Awareness of spatiotemporal behavior is effective in land planning. The spatial statistical methods provide the means by which they analyze the spatial patterns of random variables such as precipitation. In this study, using the rainfall data of 84 selected synoptic stations during the period of 30 years (1985 to 2014) in IRAN, the spatial analysis of DROUGHT has been investigated. Initially, using SPI values (timescales 3, 6, 12, 24 and 48 months), DROUGHT and traumatic periods of the area were identified and using the Geostatistic Analyst extension, the DROUGHT was zoned by interpolation methods. MORAN STATISTICS were used to explain the pattern of DROUGHT in IRAN. The results of Moran index for DROUGHT showed that the values for different years during the statistical period have a positive and close to one, indicating that the SPI DROUGHT index data has spatial self-correlation and cluster pattern. Also, the results of Z score and P-value values, clustering of a spatial distribution of DROUGHT, were confirmed.

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APA: Copy

HEJAZIZADEH, ZAHRA, & JAVIZADEH, SAEED. (2019). ANALYSIS OF DROUGHT SPATIAL STATISTICS IN IRAN. JOURNAL OF GEOGRAPHICAL SCIENCES, 19(53 ), 251-277. SID. https://sid.ir/paper/102201/en

Vancouver: Copy

HEJAZIZADEH ZAHRA, JAVIZADEH SAEED. ANALYSIS OF DROUGHT SPATIAL STATISTICS IN IRAN. JOURNAL OF GEOGRAPHICAL SCIENCES[Internet]. 2019;19(53 ):251-277. Available from: https://sid.ir/paper/102201/en

IEEE: Copy

ZAHRA HEJAZIZADEH, and SAEED JAVIZADEH, “ANALYSIS OF DROUGHT SPATIAL STATISTICS IN IRAN,” JOURNAL OF GEOGRAPHICAL SCIENCES, vol. 19, no. 53 , pp. 251–277, 2019, [Online]. Available: https://sid.ir/paper/102201/en

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