Statistical analysis and synoptic most effective jet stream pattern creating the precipitation of Iran

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ZakiZadeh MirBehrooz; SALIGHEH MOHAMMAD; NASERZADEH MOHAMMAD HOSEIN; AKBARI MEHRI

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Paper Information

Journal: JOURNAL OF NATURAL ENVIRONMENT HAZARDS Year:2018 | Volume:7 | Issue:15 Page(s): 31-48

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Title

Statistical analysis and synoptic most effective jet stream pattern creating the precipitation of Iran

Author(s)

ZakiZadeh MirBehrooz | SALIGHEH MOHAMMAD | NASERZADEH MOHAMMAD HOSEIN | AKBARI MEHRI | Issue Writer Certificate

Keywords

Jet streamQ2

RainfallQ2

Principal component analysisQ2

Analysis of synopticQ1

IranQ2

Abstract

In this research in order to identify the most effective Jet stream pattern, creating pervasive rain falls in Iran during the period 1971 to 2008, from turning approach to the environmental approach was used. For this purpose, first of all, an elemental analysis with component based approach on wind speed data with the balance of 300 HP for 12 of Zolo was done by demystified data of United States of America Atmospheric Prediction Center. The analysis showed that 8 main components are able to explain 85% of the diffraction of data. Then, by applying a hierarchical cluster analysis with Ward's method on the scores 8, mentioned component during the 3098 days under study, eight prevailing Jet stream was detected on Iran. Then for every pattern, using the interclass correlation, one day with the most correlation was chosen as the day of an agent of that pattern. The next step is to determine the most effective model Jet stream leading to Rainfall, the amount of Rainfall of 32 synoptic stations in the center of provinces, along with maps in heights, Omega, 1000, and 500 hp and map the convergence of moisture flux for levels of 700 and 850 hp for each of the days of the agent was investigated. The results showed that the pitch of strong Jet stream in fourth pattern with a speed of 65 meters per second at the level of 300 hPa in southern of Iran along with formation of through cold Chali on the Caspian Sea, simplify the conditions for the convergence of the lower levels of Iran atmosphere, and influx of moisture from the Mediterranean Sea along with along with unstable conditions of high atmosphere, causing pervasive rain in Iran

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APA: Copy

ZakiZadeh, MirBehrooz, SALIGHEH, MOHAMMAD, NASERZADEH, MOHAMMAD HOSEIN, & AKBARI, MEHRI. (2018). Statistical analysis and synoptic most effective jet stream pattern creating the precipitation of Iran. JOURNAL OF NATURAL ENVIRONMENT HAZARDS, 7(15 ), 31-48. SID. https://sid.ir/paper/259135/en

Vancouver: Copy

ZakiZadeh MirBehrooz, SALIGHEH MOHAMMAD, NASERZADEH MOHAMMAD HOSEIN, AKBARI MEHRI. Statistical analysis and synoptic most effective jet stream pattern creating the precipitation of Iran. JOURNAL OF NATURAL ENVIRONMENT HAZARDS[Internet]. 2018;7(15 ):31-48. Available from: https://sid.ir/paper/259135/en

IEEE: Copy

MirBehrooz ZakiZadeh, MOHAMMAD SALIGHEH, MOHAMMAD HOSEIN NASERZADEH, and MEHRI AKBARI, “Statistical analysis and synoptic most effective jet stream pattern creating the precipitation of Iran,” JOURNAL OF NATURAL ENVIRONMENT HAZARDS, vol. 7, no. 15 , pp. 31–48, 2018, [Online]. Available: https://sid.ir/paper/259135/en

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