Synoptic-Statistical Analysis of Ozone\'s (O3) Extreme Days in Tehran
Air pollution is one of the most important natural hazards in cities that is one of the priorities of climate research. In this research, synoptic situation of days polluted by ozone in Tehran have been studied and by environmental to circulation approach and cluster analysis. At first, was formed...
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Kharazmi University
2017-12-01
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| Series: | تحقیقات کاربردی علوم جغرافیایی |
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| Online Access: | http://jgs.khu.ac.ir/article-1-2825-en.pdf |
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| author | ali reza karbalaee doree Sayyed Mohammad Hosseini |
| author_facet | ali reza karbalaee doree Sayyed Mohammad Hosseini |
| author_sort | ali reza karbalaee doree |
| collection | DOAJ |
| description | Air pollution is one of the most important natural hazards in cities that is one of the priorities of climate research. In this research, synoptic situation of days polluted by ozone in Tehran have been studied and by environmental to circulation approach and cluster analysis. At first, was formed a matrix in 2417*41. Rows are indicated days and columns represent the number of stations. by cluster analysis and Ward method eight different clusters were identified. The results showed that the frequency of the ozone days have a seasonal trend and more can be seen in the first half of year in these cases the establishment subtropical high pressure in Iran. Therefore, cause the persistency of pollution in Tehran. |
| format | Article |
| id | doaj-art-86164959f99c4bc690c08e14a65c9f19 |
| institution | Kabale University |
| issn | 2228-7736 2588-5138 |
| language | fas |
| publishDate | 2017-12-01 |
| publisher | Kharazmi University |
| record_format | Article |
| series | تحقیقات کاربردی علوم جغرافیایی |
| spelling | doaj-art-86164959f99c4bc690c08e14a65c9f192025-01-31T17:24:06ZfasKharazmi Universityتحقیقات کاربردی علوم جغرافیایی2228-77362588-51382017-12-011747137153Synoptic-Statistical Analysis of Ozone\'s (O3) Extreme Days in Tehranali reza karbalaee doree0Sayyed Mohammad Hosseini12 Air pollution is one of the most important natural hazards in cities that is one of the priorities of climate research. In this research, synoptic situation of days polluted by ozone in Tehran have been studied and by environmental to circulation approach and cluster analysis. At first, was formed a matrix in 2417*41. Rows are indicated days and columns represent the number of stations. by cluster analysis and Ward method eight different clusters were identified. The results showed that the frequency of the ozone days have a seasonal trend and more can be seen in the first half of year in these cases the establishment subtropical high pressure in Iran. Therefore, cause the persistency of pollution in Tehran.http://jgs.khu.ac.ir/article-1-2825-en.pdfsynoptic analysiscluster analysisextreme daysozone (o3)tehran . |
| spellingShingle | ali reza karbalaee doree Sayyed Mohammad Hosseini Synoptic-Statistical Analysis of Ozone\'s (O3) Extreme Days in Tehran تحقیقات کاربردی علوم جغرافیایی synoptic analysis cluster analysis extreme days ozone (o3) tehran . |
| title | Synoptic-Statistical Analysis of Ozone\'s (O3) Extreme Days in Tehran |
| title_full | Synoptic-Statistical Analysis of Ozone\'s (O3) Extreme Days in Tehran |
| title_fullStr | Synoptic-Statistical Analysis of Ozone\'s (O3) Extreme Days in Tehran |
| title_full_unstemmed | Synoptic-Statistical Analysis of Ozone\'s (O3) Extreme Days in Tehran |
| title_short | Synoptic-Statistical Analysis of Ozone\'s (O3) Extreme Days in Tehran |
| title_sort | synoptic statistical analysis of ozone s o3 extreme days in tehran |
| topic | synoptic analysis cluster analysis extreme days ozone (o3) tehran . |
| url | http://jgs.khu.ac.ir/article-1-2825-en.pdf |
| work_keys_str_mv | AT alirezakarbalaeedoree synopticstatisticalanalysisofozoneso3extremedaysintehran AT sayyedmohammadhosseini synopticstatisticalanalysisofozoneso3extremedaysintehran |