The effect of 120 days winds on flood deposits in Sistan region by sediment characteristics analyze

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Jahantigh Moien; JAHANTIGH MANSOUR

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Journal: Environmental Erosion Research Year:2019 | Volume:9 | Issue:1 (33) Page(s): 85-104

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Information Journal Paper

Title

The effect of 120 days winds on flood deposits in Sistan region by sediment characteristics analyze

Author(s)

Jahantigh Moien | JAHANTIGH MANSOUR | Issue Writer Certificate

Keywords

AggregationQ2

Flood sedimentsQ1

SistanQ2

Wind erosionQ2

ErodibilityQ2

Abstract

1-Introduction: The purpose of this research was evaluating the effect of the 120-day's winds on flood flow entering deposit to Sistan region. At first, it became clear that flood flow path to Sistan area after the floods and droughts, according to the file work is randomly sampled from the flood deposits accumulated for a period of 3 years. Also, high deposit was measured with filed work in two periods before and after the begining of 120-days winds. In order to study the graded sediment samples and granulometry, the parameters were determined middle (D50), Mid-average, Kurtosis, Skewness and sorting. For analyzing the winds of the region WRplot view 8 and the harvest sand rose Software were used. In statistics study parameters of graded flood flow deposit entering to Sistan shows that the average particle size of sediment is 88 microns and mainly were fine-grained sediment. By determining the threshold of peak flow deposits, the frequency of prevailing winds and also draw sand rose of stations points of study, data shows that the high cumulative flow of sediment erosion affected by winds of 120 days of Sistan region. As the frequency of winds over speed threshold is 100 percentages to study station. In study of sediments height, the results showed significant differences at 0. 01 levels (p < 0. 01) between the heights average of sediment before and after the beginning of 120 days winds in Sistan region. Therefore, according to analyzing Granulometry of Sediments transported by floods, determined threshold and the capability of carrying particles by local winds as well as field measurements, these deposits are the main resources harvested with starting 120-days winds along with flood flows intering Sistan region each year, eroding and causing a lot of problems in that region....

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APA: Copy

Jahantigh, Moien, & JAHANTIGH, MANSOUR. (2019). The effect of 120 days winds on flood deposits in Sistan region by sediment characteristics analyze. ENVIRONMENTAL EROSION RESEARCHES, 9(1 (33) ), 85-104. SID. https://sid.ir/paper/382321/en

Vancouver: Copy

Jahantigh Moien, JAHANTIGH MANSOUR. The effect of 120 days winds on flood deposits in Sistan region by sediment characteristics analyze. ENVIRONMENTAL EROSION RESEARCHES[Internet]. 2019;9(1 (33) ):85-104. Available from: https://sid.ir/paper/382321/en

IEEE: Copy

Moien Jahantigh, and MANSOUR JAHANTIGH, “The effect of 120 days winds on flood deposits in Sistan region by sediment characteristics analyze,” ENVIRONMENTAL EROSION RESEARCHES, vol. 9, no. 1 (33) , pp. 85–104, 2019, [Online]. Available: https://sid.ir/paper/382321/en

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