Volume 4, Issue 4 (2015 winter 2015)                   E.E.R. 2015, 4(4): 37-48 | Back to browse issues page


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Khajeh M, Kheyrandish H, Pishdad H. Review the phenomenon of dust and study of effective winds on it (Case Study: Bandar Abbas, Hormozgan province). E.E.R. . 2015; 4 (4) :37-48
URL: http://magazine.hormozgan.ac.ir/article-1-204-en.html

MSc Hormozgan University , mohammad.khajeh91@gmail.com
Abstract:   (2212 Views)

Dust storms and high winds is a natural process that occurs in everywhere of arid and semi-arid land in the world. The phenomenon of dust is one of the most important consequences of the desertification that cause different damages. The aim of this study was to analyze the occurrence of dust in the city of Bandar Abbas. First, the frequency of monthly and annual dust from 1985-2005, in the city of Bandar Abbas was paid and then By using Mann-Kendall trend of phenomenon of dust as monthly and annual in Bandar synoptic stations were examined, and drawing Annual Wind Rose diagram of prevailing winds in the region. The overall results of the analysis with the Mann - Kendall in this period indicated that occurrence of days with dust is a constant process. And monthly trend analysis showed that trend from January to September period is constant and latest month is not constant trend. Study of Charts as partial indicates that the dust has increased since 1996 and then decline and again in 2000 this trend has increased. And because of its, reduced combat operations the phenomenon of dust and increases harvest locations in the province. The results of the correlation between annual precipitation and dust indicated that the rainfall has decreased in the years of dust has increased. As well as results of winds study showed that the higher speed winds in the dry months have increased. Rose diagram showed the direction of the prevailing wind in the region is north and the most frequent wind speed at station is 55/4 meters per second.

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Type of Study: Research |
Received: 2014/03/1 | Published: 2015/10/15

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