SPATIAL AND TEMPORAL ANALYSIS OF HEAT WAVES IN KHORASAN RAZAVI

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JAHANBAKHSH SAEID; REZAI BANAFSHEH MAJID; HAGHIGHI ESMAIL; ROUSTA IMAN

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Journal: GEOGRAPHICAL JOURNAL OF TERRITORY Year:2016 | Volume:12 | Issue:48 Page(s): 19-35

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Title

SPATIAL AND TEMPORAL ANALYSIS OF HEAT WAVES IN KHORASAN RAZAVI

Author(s)

JAHANBAKHSH SAEID | REZAI BANAFSHEH MAJID | HAGHIGHI ESMAIL | ROUSTA IMAN | Issue Writer Certificate

Keywords

METHOD ENVIRONMENT-TO-CIRCULATIONQ1

CLUSTER ANALYSISQ2

SIBERIAN HIGH-PRESSUREQ2

BLACK SEA HIGH-PRESSUREQ2

NORTH WESTQ1

Abstract

In this research, using METHOD ENVIRONMENT-TO-CIRCULATION (determined by atmospheric circulation patterns Depending on environmental conditions), the main synoptic systems of Effective snow in the NORTH WEST of Iran have been Analyzed. First, daily data of26 snow stations In the NORTH WEST of Iran Including provinces West Azerbaijan, East Azerbaijan, Ardabil, Zanjan and Kurdistan from January1951 to December 2004 of Iran Meteorological Organization was Collected. In addition, to identify climate patterns, daily mean of sea level pressure data of the reanalysis database by the United States Environmental Forecasting Center from1951 to 2004 was collected. CLUSTER ANALYSIS on pressure data on atmospheric patterns were classified. Then, To calculate the number of clusters, The objective and subjective methods were used. After that, the number of clusters was determined by map analysis of all days. To determine the major systems, the correlations between clusters were determined. the day that had the highest correlation with other cluster days was Selected and analyzed As a representative day circulation pattern in the cluster, forming the basis of this Research. The results showed that Snow in the NORTH WEST of Iran is affected by different systems near and far in the area. As snow in this area Occurs under two major conditions: 1-Spread and penetration of high-pressure Siberian from The NORTH WEST to This Region2-Formation and strengthening of the Black Sea High pressure In the west of Iran. It also seems that in The second pattern When the Iceland low pressure, Black Sea High pressure, Azores high pressure and low pressure Sudan are at the height of their activity we are witnessing a heavy snow fall In this area. Consequently, with strengthening the systems mentioned, There is a significant increase in The amount of snowfall And its distribution in the studied stations.

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APA: Copy

JAHANBAKHSH, SAEID, REZAI BANAFSHEH, MAJID, HAGHIGHI, ESMAIL, & ROUSTA, IMAN. (2016). SPATIAL AND TEMPORAL ANALYSIS OF HEAT WAVES IN KHORASAN RAZAVI. GEOGRAPHICAL JOURNAL OF TERRITORY, 12(48), 19-35. SID. https://sid.ir/paper/116302/en

Vancouver: Copy

JAHANBAKHSH SAEID, REZAI BANAFSHEH MAJID, HAGHIGHI ESMAIL, ROUSTA IMAN. SPATIAL AND TEMPORAL ANALYSIS OF HEAT WAVES IN KHORASAN RAZAVI. GEOGRAPHICAL JOURNAL OF TERRITORY[Internet]. 2016;12(48):19-35. Available from: https://sid.ir/paper/116302/en

IEEE: Copy

SAEID JAHANBAKHSH, MAJID REZAI BANAFSHEH, ESMAIL HAGHIGHI, and IMAN ROUSTA, “SPATIAL AND TEMPORAL ANALYSIS OF HEAT WAVES IN KHORASAN RAZAVI,” GEOGRAPHICAL JOURNAL OF TERRITORY, vol. 12, no. 48, pp. 19–35, 2016, [Online]. Available: https://sid.ir/paper/116302/en

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