Statistical and synoptic analysis of cold waves in North West of Iran
This study tries to identify, classify, and analyze synoptic cold wave in North West region of Iran. This study applies standardized (z scores) index of Minimum Temperature in the period of 1951-2010.as such cold waves were classified based on the intensity of occurance. Out of occured cold wave in...
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| Format: | Article |
| Language: | fas |
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Kharazmi University
2016-03-01
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| Series: | تحقیقات کاربردی علوم جغرافیایی |
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| Online Access: | http://jgs.khu.ac.ir/article-1-2608-en.pdf |
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| author | yousouf ghavidel rahimi manochehr farajzadeh asl solmaz motalebizad |
| author_facet | yousouf ghavidel rahimi manochehr farajzadeh asl solmaz motalebizad |
| author_sort | yousouf ghavidel rahimi |
| collection | DOAJ |
| description | This study tries to identify, classify, and analyze synoptic cold wave in North West region of Iran. This study applies standardized (z scores) index of Minimum Temperature in the period of 1951-2010.as such cold waves were classified based on the intensity of occurance. Out of occured cold wave in North West of the coldest identified wave pertaingt each class for synoptic analyzes were selected. This study suggests that the prevailing pressure pattern during the relevant wave indicates high pressure over the earth surface as well as deep trough in upper layer. From the continuing cold standpoint, the role of changing position from pavallel wind in to meridional corresponel to blocking is very offective. Blocking in turn leads to reduction in speed of cold air masses which are originating from higher latitude. They were assouclated with cold waves. More precipitation as so ciated with higher latitude as well as low speed flows will lead to strong and continious waves. |
| format | Article |
| id | doaj-art-6e58778917b74c04b136d754f91e1880 |
| institution | Kabale University |
| issn | 2228-7736 2588-5138 |
| language | fas |
| publishDate | 2016-03-01 |
| publisher | Kharazmi University |
| record_format | Article |
| series | تحقیقات کاربردی علوم جغرافیایی |
| spelling | doaj-art-6e58778917b74c04b136d754f91e18802025-01-31T17:22:53ZfasKharazmi Universityتحقیقات کاربردی علوم جغرافیایی2228-77362588-51382016-03-0116402946Statistical and synoptic analysis of cold waves in North West of Iranyousouf ghavidel rahimi0manochehr farajzadeh asl1solmaz motalebizad2 This study tries to identify, classify, and analyze synoptic cold wave in North West region of Iran. This study applies standardized (z scores) index of Minimum Temperature in the period of 1951-2010.as such cold waves were classified based on the intensity of occurance. Out of occured cold wave in North West of the coldest identified wave pertaingt each class for synoptic analyzes were selected. This study suggests that the prevailing pressure pattern during the relevant wave indicates high pressure over the earth surface as well as deep trough in upper layer. From the continuing cold standpoint, the role of changing position from pavallel wind in to meridional corresponel to blocking is very offective. Blocking in turn leads to reduction in speed of cold air masses which are originating from higher latitude. They were assouclated with cold waves. More precipitation as so ciated with higher latitude as well as low speed flows will lead to strong and continious waves.http://jgs.khu.ac.ir/article-1-2608-en.pdfclimate hazardscold wavescold wave classificationsuper cold wavenorth west of iran |
| spellingShingle | yousouf ghavidel rahimi manochehr farajzadeh asl solmaz motalebizad Statistical and synoptic analysis of cold waves in North West of Iran تحقیقات کاربردی علوم جغرافیایی climate hazards cold waves cold wave classification super cold wave north west of iran |
| title | Statistical and synoptic analysis of cold waves in North West of Iran |
| title_full | Statistical and synoptic analysis of cold waves in North West of Iran |
| title_fullStr | Statistical and synoptic analysis of cold waves in North West of Iran |
| title_full_unstemmed | Statistical and synoptic analysis of cold waves in North West of Iran |
| title_short | Statistical and synoptic analysis of cold waves in North West of Iran |
| title_sort | statistical and synoptic analysis of cold waves in north west of iran |
| topic | climate hazards cold waves cold wave classification super cold wave north west of iran |
| url | http://jgs.khu.ac.ir/article-1-2608-en.pdf |
| work_keys_str_mv | AT yousoufghavidelrahimi statisticalandsynopticanalysisofcoldwavesinnorthwestofiran AT manochehrfarajzadehasl statisticalandsynopticanalysisofcoldwavesinnorthwestofiran AT solmazmotalebizad statisticalandsynopticanalysisofcoldwavesinnorthwestofiran |