Investigation of spring convection loads of northwest of Iran using unstable indices (case study of Tabriz station)

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SALIGHEH MOHAMMAD; NASERZADEH MOHAMMAD HOSEIN; GHAFFARI ALI

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Journal: Journal of Geography and Planning Year:2018 | Volume:22 | Issue:64 Page(s): 129-147

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Title

Investigation of spring convection loads of northwest of Iran using unstable indices (case study of Tabriz station)

Author(s)

SALIGHEH MOHAMMAD | NASERZADEH MOHAMMAD HOSEIN | GHAFFARI ALI | Issue Writer Certificate

Keywords

PrecipitationQ2

convectionQ2

skew –T diagramQ1

instability in dicatorsQ2

hazardsQ1

Tabriz spring stationQ1

Abstract

The mechanisms of climbing rainfall in different areas follow different patterns. Identification of those patterns can increase the environmental planning. The stability indicators which are known as instability indicators are relations through which we can study the amount of instability of convection of the atmosphere in any area for studying and predicting falls. These indicators are used for convection activities and basically are studied by thermodynamics diagrams and Radio sounds data. The main aim of this paper is studying the chronological features of Precipitations over 5 mm. and determining convection Precipitation parts of Tabriz spring station based on higher layers of atmosphere. the Tabriz station Precipitation data were received from the weather organization cartulary regarding the 35 – year statistic periods and Precipitation data for over 5 mm. were chosen while the time frequency was studied. After choosing the samples, the skew – T diagrams of Precipitation days inadittion to the instability indicators such as (LI-TT – SI – KI – PW-CAPE)were analyzed. The processing of these data in seasonal scale indicate a frequent happening of those instabilities. The maximum occur once of the Precipitations for the April with 131 frequency cases and minimum of this precipitator is in June with 35 cases were observed. The results of drawing skew – t diagrams and measuring the instability indicators show that the role of convection factor is important in spring Precipitations because the convection factor is only the main factor not only the amount of convection is critical but also the needed instability for rain is provided. In general, after studying 263 rain samples in spring, it turned out that the convection factor has the most important role in rain occurrence in May and June and the hazards of flood threaten the area.

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APA: Copy

SALIGHEH, MOHAMMAD, NASERZADEH, MOHAMMAD HOSEIN, & GHAFFARI, ALI. (2018). Investigation of spring convection loads of northwest of Iran using unstable indices (case study of Tabriz station). JOURNAL OF GEOGRAPHY AND PLANNING, 22(64 ), 129-147. SID. https://sid.ir/paper/380233/en

Vancouver: Copy

SALIGHEH MOHAMMAD, NASERZADEH MOHAMMAD HOSEIN, GHAFFARI ALI. Investigation of spring convection loads of northwest of Iran using unstable indices (case study of Tabriz station). JOURNAL OF GEOGRAPHY AND PLANNING[Internet]. 2018;22(64 ):129-147. Available from: https://sid.ir/paper/380233/en

IEEE: Copy

MOHAMMAD SALIGHEH, MOHAMMAD HOSEIN NASERZADEH, and ALI GHAFFARI, “Investigation of spring convection loads of northwest of Iran using unstable indices (case study of Tabriz station),” JOURNAL OF GEOGRAPHY AND PLANNING, vol. 22, no. 64 , pp. 129–147, 2018, [Online]. Available: https://sid.ir/paper/380233/en

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