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:: Volume 17, Issue 58 (9-2017) ::
جغرافیایی 2017, 17(58): 303-315 Back to browse issues page
The Analysis of Transport trend of Subtropical jet stream and High Pressure on Middle East and its relationship with Iran climate
Hossain Asakereh 1, Azar Beyranvand *2, Mokhtar Fatahian 3, Hasan Shadman 4
1- Professor Meteorology University of Zanjan
2- 2Ph.D Student of Synoptic Climatology University of Tehran
3- Graduat Student’s of Climatology
4- Ph.D Student of Climate Change University of Zanjan
Abstract:   (429 Views)

In this present research, the related data to the Geopotential Hei`ght and zonal (U) and meridional (V) wind components of wind for 60 years on confine of 20-80 north degree and -10/-120 east degree and in 6 high level (200-700 hap) has been taken from National Center for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR). The results of the subtropical Jet Stream annual frequency trend indicate an increased Jet Stream continuation at southern Pakistan and North India and decrease in the southern Mediterranean.The results indicate an increased Jet Stream on the continuation of the annual frequency of subtropical Jet Stream in southern Pakistan and North India continued to decrease in the southern Mediterranean. In the Red Sea, Arabian, Persian Gulf, Oman sea and the Arabian countries at South Persian Gulf and Mediterranean, as well as the left input, meridional changes over time deviated to the north of influence made it possible. In the Red Sea, Arabian, Persian Gulf, Gulf of Oman and the Persian Gulf countries, South Arabic and Mediterranean influence, as well as the left input meridional changes over time deviated to the north of influence made it possible. The survey also showed that continuing pressure ridge subtropical the stack on top of ever increasing trend in the region is significant. Considering the large-scale atmospheric patterns associated with land surface changes of climate, where can be caused by climate change.

Keywords: Subtropical Geopotential High, Subtropical Jet Stream, Middle East, Climate Change, Linear Regression.
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Type of Study: Research | Subject: Special
Received: 2014/12/29 | Accepted: 2016/01/12 | Published: 2017/09/21
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Asakereh H, Beyranvand A, Fatahian M, Shadman H. The Analysis of Transport trend of Subtropical jet stream and High Pressure on Middle East and its relationship with Iran climate. جغرافیایی. 2017; 17 (58) :303-315
URL: http://geographical-space.iau-ahar.ac.ir/article-1-1392-en.html
Volume 17, Issue 58 (9-2017) Back to browse issues page
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