SYNOPTIC ANALYSIS OF 500 HPA FLOW PATTERNS IN RAINY SPRING’ SARASBARAN REGION

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AMININIA KARIM

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Journal Paper

Paper Information

Journal: JOURNAL OF GEOGRAPHICAL SCIENCES Year:2015 | Volume:15 | Issue:37 Page(s): 0-0

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Title

SYNOPTIC ANALYSIS OF 500 HPA FLOW PATTERNS IN RAINY SPRING’ SARASBARAN REGION

Author(s)

AMININIA KARIM | Issue Writer Certificate

Keywords

RAINY SPRING

PCA

500 HPA

ARASBARAN

CLUSTRING

Abstract

Arasbaran is one of most important regions in terms of agriculture, economics and tourism in northwest of Iran that it usually receives themost yearly spring precipitation. To recognize the synoptic patterns ofthe 500 HPA, geopotential height data were driven for coordinates 00-70 ˚ E and 15-65˚ N in RAINY SPRINGs (1972-1976-1979-1981-1986). Toselect the most important component using principal componentsanalysis, a matrix S mode with dimensions 386×610 was used. Theresults showed that more than 92% of the total variance can beexplained by 13 components. After clustering procedure on the 13components, six circulation patterns were obtained. In 5 cases of theextracted patterns, there's a really high center of east Mediterraneanand south east Europe, the most important component was detectedduring the wet spring. Other major factors will be referred to the shortwaveatmospheric middle level that at this time of year is usuallyactive between the Caspian Sea and the Black Sea and cause wetperiods in spring in this area. The systems accompanying low activecenters of located in Central Asia and their short waves bringinstability and precipitation in the spring to this area.

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APA: Copy

AMININIA, KARIM. (2015). SYNOPTIC ANALYSIS OF 500 HPA FLOW PATTERNS IN RAINY SPRING’ SARASBARAN REGION. JOURNAL OF GEOGRAPHICAL SCIENCES, 15(37 ), 0-0. SID. https://sid.ir/paper/713859/en

Vancouver: Copy

AMININIA KARIM. SYNOPTIC ANALYSIS OF 500 HPA FLOW PATTERNS IN RAINY SPRING’ SARASBARAN REGION. JOURNAL OF GEOGRAPHICAL SCIENCES[Internet]. 2015;15(37 ):0-0. Available from: https://sid.ir/paper/713859/en

IEEE: Copy

KARIM AMININIA, “SYNOPTIC ANALYSIS OF 500 HPA FLOW PATTERNS IN RAINY SPRING’ SARASBARAN REGION,” JOURNAL OF GEOGRAPHICAL SCIENCES, vol. 15, no. 37 , pp. 0–0, 2015, [Online]. Available: https://sid.ir/paper/713859/en

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