Compound extreme events in Yarlung Zangbo River Basin from 1977 to 2018
Extreme climate events threaten human health, economic development, and ecosystems. Many studies have been conducted on extreme precipitation and temperature changes in the Yarlung Zangbo River Basin (YZRB). However, little attention has been paid to compound climate extremes. In this study, the var...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-03-01
|
| Series: | Water Science and Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S167423702200062X |
| _version_ | 1797894670968160256 |
|---|---|
| author | Zong-xue Xu Rui Zhang |
| author_facet | Zong-xue Xu Rui Zhang |
| author_sort | Zong-xue Xu |
| collection | DOAJ |
| description | Extreme climate events threaten human health, economic development, and ecosystems. Many studies have been conducted on extreme precipitation and temperature changes in the Yarlung Zangbo River Basin (YZRB). However, little attention has been paid to compound climate extremes. In this study, the variations of wet/warm compound extreme events in summer and dry/cold compound extreme events in winter over the past 42 years in the YZRB were investigated using eight extreme climate indices that were estimated using monthly temperature and precipitation observations. The results showed that the numbers of frost days and ice days tended to decrease on the spatiotemporal scale, while the maximum values of daily maximum temperature and daily minimum temperature exhibited increasing trends. The frequency of wet/warm compound extreme events was significantly higher from 1998 to 2018 than from 1977 to 1997. Dry/cold compound extreme events became less frequent from 1998 to 2018 than from 1977 to 1997. The rate of increase of wet/warm compound extreme events was about ten times the absolute rate of decrease of dry/cold compound extreme events. With regard to the spatial pattern, the frequency of wet/warm compound extreme events increased significantly in almost all parts of the YZRB, while that of dry/cold compound extreme events decreased across the basin. This study helps to improve our understanding of the changes in compound precipitation and temperature extremes in the YZRB from a multivariable perspective. |
| first_indexed | 2024-04-10T07:14:09Z |
| format | Article |
| id | doaj.art-7f5f2ba93ae64737b51b3170be74ff73 |
| institution | Directory Open Access Journal |
| issn | 1674-2370 |
| language | English |
| last_indexed | 2024-04-10T07:14:09Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Water Science and Engineering |
| spelling | doaj.art-7f5f2ba93ae64737b51b3170be74ff732023-02-26T04:26:54ZengElsevierWater Science and Engineering1674-23702023-03-011613644Compound extreme events in Yarlung Zangbo River Basin from 1977 to 2018Zong-xue Xu0Rui Zhang1College of Water Sciences, Beijing Normal University, Beijing 100875, China; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing 100875, ChinaCollege of Water Sciences, Beijing Normal University, Beijing 100875, China; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing 100875, China; Corresponding author.Extreme climate events threaten human health, economic development, and ecosystems. Many studies have been conducted on extreme precipitation and temperature changes in the Yarlung Zangbo River Basin (YZRB). However, little attention has been paid to compound climate extremes. In this study, the variations of wet/warm compound extreme events in summer and dry/cold compound extreme events in winter over the past 42 years in the YZRB were investigated using eight extreme climate indices that were estimated using monthly temperature and precipitation observations. The results showed that the numbers of frost days and ice days tended to decrease on the spatiotemporal scale, while the maximum values of daily maximum temperature and daily minimum temperature exhibited increasing trends. The frequency of wet/warm compound extreme events was significantly higher from 1998 to 2018 than from 1977 to 1997. Dry/cold compound extreme events became less frequent from 1998 to 2018 than from 1977 to 1997. The rate of increase of wet/warm compound extreme events was about ten times the absolute rate of decrease of dry/cold compound extreme events. With regard to the spatial pattern, the frequency of wet/warm compound extreme events increased significantly in almost all parts of the YZRB, while that of dry/cold compound extreme events decreased across the basin. This study helps to improve our understanding of the changes in compound precipitation and temperature extremes in the YZRB from a multivariable perspective.http://www.sciencedirect.com/science/article/pii/S167423702200062XClimate changeExtreme eventsPrecipitationTemperatureYarlung Zangbo River Basin |
| spellingShingle | Zong-xue Xu Rui Zhang Compound extreme events in Yarlung Zangbo River Basin from 1977 to 2018 Water Science and Engineering Climate change Extreme events Precipitation Temperature Yarlung Zangbo River Basin |
| title | Compound extreme events in Yarlung Zangbo River Basin from 1977 to 2018 |
| title_full | Compound extreme events in Yarlung Zangbo River Basin from 1977 to 2018 |
| title_fullStr | Compound extreme events in Yarlung Zangbo River Basin from 1977 to 2018 |
| title_full_unstemmed | Compound extreme events in Yarlung Zangbo River Basin from 1977 to 2018 |
| title_short | Compound extreme events in Yarlung Zangbo River Basin from 1977 to 2018 |
| title_sort | compound extreme events in yarlung zangbo river basin from 1977 to 2018 |
| topic | Climate change Extreme events Precipitation Temperature Yarlung Zangbo River Basin |
| url | http://www.sciencedirect.com/science/article/pii/S167423702200062X |
| work_keys_str_mv | AT zongxuexu compoundextremeeventsinyarlungzangboriverbasinfrom1977to2018 AT ruizhang compoundextremeeventsinyarlungzangboriverbasinfrom1977to2018 |