Trend Analysis Blocking system in the north of Himesepher
Blocking is one of the most protruding flow patterns and has received attention during the last decades due to its effect on seasonal weather characteristics. Moreover, finding show that Most of the blocking systems in the northern hemisphere are in all seasons and their continuity in the Atlantic a...
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| Format: | Article |
| Language: | fas |
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University of Sistan and Baluchestan
2019-12-01
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| Series: | جغرافیا و توسعه |
| Subjects: | |
| Online Access: | https://gdij.usb.ac.ir/article_5049_facafea82527f506880e9c5b6fd94515.pdf |
| _version_ | 1797804926982684672 |
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| author | Fatemeh Abedi Dariush Rahimi s .abolfazl masodian |
| author_facet | Fatemeh Abedi Dariush Rahimi s .abolfazl masodian |
| author_sort | Fatemeh Abedi |
| collection | DOAJ |
| description | Blocking is one of the most protruding flow patterns and has received attention during the last decades due to its effect on seasonal weather characteristics. Moreover, finding show that Most of the blocking systems in the northern hemisphere are in all seasons and their continuity in the Atlantic and Pacific. The results of the Mann-Kandal test at the 95% confidence level of the percentage of frequency of blocking systems showed that the northern hemisphere blocking systems have been increasing in most parts of Asia-Pacific, Europe and Iran, and the trend is decreasing on the Atlantic Ocean and the American continental. Of course, these trends only increased significantly on parts of Central Asia and Central Pacific. In the monthly, the Eastern and Central Atlantic segregated from May to September and December the decreasing trend that decreasing only in June, September and December in some areas of the trend, in October, November January, February and March is an increasing, and only in October and March this trend is significant.In the Pacific, except in March, there has been an increasing trend in all months in July, August, October and September. In the Americas, except in May and August, there has been a significant decrease in the other months. In Europe, except for the months of August, September and December, in other month has an increasing trend, which has not been significant. In Asia and in the region of Iran, although it is more or less an increasing trend, it is not significant |
| first_indexed | 2024-03-13T05:43:20Z |
| format | Article |
| id | doaj.art-114203ff40d34bb6a8f4dcbbb0d43981 |
| institution | Directory Open Access Journal |
| issn | 1735-0735 2676-7791 |
| language | fas |
| last_indexed | 2024-03-13T05:43:20Z |
| publishDate | 2019-12-01 |
| publisher | University of Sistan and Baluchestan |
| record_format | Article |
| series | جغرافیا و توسعه |
| spelling | doaj.art-114203ff40d34bb6a8f4dcbbb0d439812023-06-13T20:23:54ZfasUniversity of Sistan and Baluchestanجغرافیا و توسعه1735-07352676-77912019-12-01175723324410.22111/gdij.2019.50495049Trend Analysis Blocking system in the north of HimesepherFatemeh Abedi0Dariush Rahimi1s .abolfazl masodian2Physical geography- University of Isfahan,دانشیار اقلیمشناسی، دانشگاه اصفهان، اصفهان، ایراناستاد آبوهواشناسی، دانشگاه اصفهان، اصفهان، ایرانBlocking is one of the most protruding flow patterns and has received attention during the last decades due to its effect on seasonal weather characteristics. Moreover, finding show that Most of the blocking systems in the northern hemisphere are in all seasons and their continuity in the Atlantic and Pacific. The results of the Mann-Kandal test at the 95% confidence level of the percentage of frequency of blocking systems showed that the northern hemisphere blocking systems have been increasing in most parts of Asia-Pacific, Europe and Iran, and the trend is decreasing on the Atlantic Ocean and the American continental. Of course, these trends only increased significantly on parts of Central Asia and Central Pacific. In the monthly, the Eastern and Central Atlantic segregated from May to September and December the decreasing trend that decreasing only in June, September and December in some areas of the trend, in October, November January, February and March is an increasing, and only in October and March this trend is significant.In the Pacific, except in March, there has been an increasing trend in all months in July, August, October and September. In the Americas, except in May and August, there has been a significant decrease in the other months. In Europe, except for the months of August, September and December, in other month has an increasing trend, which has not been significant. In Asia and in the region of Iran, although it is more or less an increasing trend, it is not significanthttps://gdij.usb.ac.ir/article_5049_facafea82527f506880e9c5b6fd94515.pdfblocking system.tmindextrendmann-kenadl test |
| spellingShingle | Fatemeh Abedi Dariush Rahimi s .abolfazl masodian Trend Analysis Blocking system in the north of Himesepher جغرافیا و توسعه blocking system.tmindex trend mann-kenadl test |
| title | Trend Analysis Blocking system in the north of Himesepher |
| title_full | Trend Analysis Blocking system in the north of Himesepher |
| title_fullStr | Trend Analysis Blocking system in the north of Himesepher |
| title_full_unstemmed | Trend Analysis Blocking system in the north of Himesepher |
| title_short | Trend Analysis Blocking system in the north of Himesepher |
| title_sort | trend analysis blocking system in the north of himesepher |
| topic | blocking system.tmindex trend mann-kenadl test |
| url | https://gdij.usb.ac.ir/article_5049_facafea82527f506880e9c5b6fd94515.pdf |
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