Long-Term Trends of Extreme Climate Indexes in the Southern Part of Siberia in Comparison with Those of Surrounding Regions
Siberia, which experienced disastrous heat waves in 2010 and 2012, is one of the regions in which extreme climate events have occurred recently. To compare the long-term trends of extreme climate events in the southern part of Siberia with those of surrounding regions, we calculated 11 extreme clima...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/7/1131 |
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| author | Takanori Watanabe Hiroshi Matsuyama Irina Kuzhevskaia Olga Nechepurenko Vladislav Chursin Valerii Zemtsov |
| author_facet | Takanori Watanabe Hiroshi Matsuyama Irina Kuzhevskaia Olga Nechepurenko Vladislav Chursin Valerii Zemtsov |
| author_sort | Takanori Watanabe |
| collection | DOAJ |
| description | Siberia, which experienced disastrous heat waves in 2010 and 2012, is one of the regions in which extreme climate events have occurred recently. To compare the long-term trends of extreme climate events in the southern part of Siberia with those of surrounding regions, we calculated 11 extreme climate indexes from observational data for 1950–2019 and analyzed the trends in Siberia and other parts of Russia using statistical techniques, i.e., Welch’s <i>t</i>-test, the Mann–Kendall test, Sen’s slope estimator, and a cluster analysis. We clarified that high-temperature events in March are more frequent in Siberia than in the surrounding areas. However, the increasing trends of high temperatures in Siberia were lower than those in northwestern China and Central Asia. The intensity of heavy precipitation is increasing in Siberia, as it is in the surrounding areas. Compared to the surrounding areas analyzed in previous studies, the trend of heavy precipitation in Siberia has not increased much. In particular, Siberia shows a more remarkable decreasing trend in heavy precipitation during the summer than other regions. The dry trends in the summer, however, do not occur in Siberia as a whole, and the opposite trend of summer precipitation was observed in some areas of Siberia. |
| first_indexed | 2024-03-11T01:19:11Z |
| format | Article |
| id | doaj.art-00ad8017da2c4476972f03b9f73ad05b |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-11T01:19:11Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-00ad8017da2c4476972f03b9f73ad05b2023-11-18T18:15:56ZengMDPI AGAtmosphere2073-44332023-07-01147113110.3390/atmos14071131Long-Term Trends of Extreme Climate Indexes in the Southern Part of Siberia in Comparison with Those of Surrounding RegionsTakanori Watanabe0Hiroshi Matsuyama1Irina Kuzhevskaia2Olga Nechepurenko3Vladislav Chursin4Valerii Zemtsov5Department of Geography, Tokyo Metropolitan University, 1-1, Minami-Osawa, Hachioji 192-0397, Tokyo, JapanDepartment of Geography, Tokyo Metropolitan University, 1-1, Minami-Osawa, Hachioji 192-0397, Tokyo, JapanDepartment of Meteorology and Climatology, National Research Tomsk State University, 36 Lenin Ave., Tomsk 634050, RussiaDepartment of Meteorology and Climatology, National Research Tomsk State University, 36 Lenin Ave., Tomsk 634050, RussiaDepartment of Meteorology and Climatology, National Research Tomsk State University, 36 Lenin Ave., Tomsk 634050, RussiaDepartment of Hydrology, National Research Tomsk State University, 36 Lenin Ave., Tomsk 634050, RussiaSiberia, which experienced disastrous heat waves in 2010 and 2012, is one of the regions in which extreme climate events have occurred recently. To compare the long-term trends of extreme climate events in the southern part of Siberia with those of surrounding regions, we calculated 11 extreme climate indexes from observational data for 1950–2019 and analyzed the trends in Siberia and other parts of Russia using statistical techniques, i.e., Welch’s <i>t</i>-test, the Mann–Kendall test, Sen’s slope estimator, and a cluster analysis. We clarified that high-temperature events in March are more frequent in Siberia than in the surrounding areas. However, the increasing trends of high temperatures in Siberia were lower than those in northwestern China and Central Asia. The intensity of heavy precipitation is increasing in Siberia, as it is in the surrounding areas. Compared to the surrounding areas analyzed in previous studies, the trend of heavy precipitation in Siberia has not increased much. In particular, Siberia shows a more remarkable decreasing trend in heavy precipitation during the summer than other regions. The dry trends in the summer, however, do not occur in Siberia as a whole, and the opposite trend of summer precipitation was observed in some areas of Siberia.https://www.mdpi.com/2073-4433/14/7/1131climatic extremeslong-term trendsouthern part of Siberiaair temperatureprecipitation |
| spellingShingle | Takanori Watanabe Hiroshi Matsuyama Irina Kuzhevskaia Olga Nechepurenko Vladislav Chursin Valerii Zemtsov Long-Term Trends of Extreme Climate Indexes in the Southern Part of Siberia in Comparison with Those of Surrounding Regions Atmosphere climatic extremes long-term trend southern part of Siberia air temperature precipitation |
| title | Long-Term Trends of Extreme Climate Indexes in the Southern Part of Siberia in Comparison with Those of Surrounding Regions |
| title_full | Long-Term Trends of Extreme Climate Indexes in the Southern Part of Siberia in Comparison with Those of Surrounding Regions |
| title_fullStr | Long-Term Trends of Extreme Climate Indexes in the Southern Part of Siberia in Comparison with Those of Surrounding Regions |
| title_full_unstemmed | Long-Term Trends of Extreme Climate Indexes in the Southern Part of Siberia in Comparison with Those of Surrounding Regions |
| title_short | Long-Term Trends of Extreme Climate Indexes in the Southern Part of Siberia in Comparison with Those of Surrounding Regions |
| title_sort | long term trends of extreme climate indexes in the southern part of siberia in comparison with those of surrounding regions |
| topic | climatic extremes long-term trend southern part of Siberia air temperature precipitation |
| url | https://www.mdpi.com/2073-4433/14/7/1131 |
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