INVESTIGATION OF SULTRY PHENOMENON BY STATISTICAL AND SYNOPTIC METHODS AT THE NORTHERN PROVINCES OF IRAN (GILAN, MAZANDARAN AND GOLESTAN)

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BAAGHIDEH MOHAMMAD; ENTEZARI ALIREZA; NAIMI ALI; SALARY MARYAM

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Journal: GEOGRAPHIC SPACE Year:2013 | Volume:13 | Issue:43 Page(s): 135-152

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Title

INVESTIGATION OF SULTRY PHENOMENON BY STATISTICAL AND SYNOPTIC METHODS AT THE NORTHERN PROVINCES OF IRAN (GILAN, MAZANDARAN AND GOLESTAN)

Author(s)

BAAGHIDEH MOHAMMAD | ENTEZARI ALIREZA | NAIMI ALI | SALARY MARYAM | Issue Writer Certificate

Keywords

SULTRYQ2

FACTOR ANALYSISQ2

CLUSTER ANALYSISQ2

SYNOPTIC PATTERNQ2

NORTHERN PROVINCES OF IRANQ2

Abstract

In order to carry out statistical and synoptic analysis of the SULTRY at the NORTHERN PROVINCES OF IRAN, temperature, relative humidity, and saturated water vapor pressure obtained from Meteorological Organization of Iran in (1992-2007) period. The intensity SULTRY index and the partial water vapor pressure were calculated for each day. According to the defined threshold, the SULTRY days were divided into four groups. Statistical analysis proved that the August is the sultriest month with the average of 83% SULTRY. The Noshahr, with 149 SULTRY days, has the highest frequency of SULTRY days. Totally, west coast areas have more intensity of SULTRY than east coast areas.In order to synoptic analysis, 63 days of high SULTRY lasting two days or more, were selected The daily data of sea level pressure and 500 geopotential height were extracted from NCEP/NCAR database with spatial resolution of 2.5 x2.5 degree and then a hierarchical CLUSTER ANALYSIS was applied using ward linkage method. Finally, the most important SYNOPTIC PATTERNs were extracted which related to high SULTRY days. On the surface map was observed that Pakistan low pressure at the southern part of the country, and occasionally this low pressure penetrate into the study area. In addition it had been observed that high pressure tongue of Black sea and high pressure of north and west Europe in the area. Moreover on the base of SYNOPTIC PATTERNs at the 500 hp level indicated that STHP was dominated.

Cites

TEMPORAL AND SPATIAL ANALYSIS SULTRY PHENOMENON IN KHUZESTAN PROVINCE STYLES SEVERITY INDEX SULTRY AND MANN KENDALL TEST

References

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APA: Copy

BAAGHIDEH, MOHAMMAD, ENTEZARI, ALIREZA, NAIMI, ALI, & SALARY, MARYAM. (2013). INVESTIGATION OF SULTRY PHENOMENON BY STATISTICAL AND SYNOPTIC METHODS AT THE NORTHERN PROVINCES OF IRAN (GILAN, MAZANDARAN AND GOLESTAN). GEOGRAPHIC SPACE, 13(43), 135-152. SID. https://sid.ir/paper/91587/en

Vancouver: Copy

BAAGHIDEH MOHAMMAD, ENTEZARI ALIREZA, NAIMI ALI, SALARY MARYAM. INVESTIGATION OF SULTRY PHENOMENON BY STATISTICAL AND SYNOPTIC METHODS AT THE NORTHERN PROVINCES OF IRAN (GILAN, MAZANDARAN AND GOLESTAN). GEOGRAPHIC SPACE[Internet]. 2013;13(43):135-152. Available from: https://sid.ir/paper/91587/en

IEEE: Copy

MOHAMMAD BAAGHIDEH, ALIREZA ENTEZARI, ALI NAIMI, and MARYAM SALARY, “INVESTIGATION OF SULTRY PHENOMENON BY STATISTICAL AND SYNOPTIC METHODS AT THE NORTHERN PROVINCES OF IRAN (GILAN, MAZANDARAN AND GOLESTAN),” GEOGRAPHIC SPACE, vol. 13, no. 43, pp. 135–152, 2013, [Online]. Available: https://sid.ir/paper/91587/en

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