Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6116 |
Recent intensification of short-term concurrent hot and dry extremes over the Pearl River basin, China | |
Zhang, Haoyue1; Wu, Chuanhao2; Hu, Bill X.2 | |
2019-11-15 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:13页码:4924-4937 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Ongoing climate warming is largely affecting the frequency and magnitude of short-term climatic extremes in many regions of the world, causing significant damage to the environment and society. Here, based on the long-term (1980-2010) meteorological observations and reanalysis products, we investigated the spatio-temporal evolutions of short-term concurrent hot and dry extreme (SCHDE) events over the Pearl River basin, a typical humid and subtropical basin in southern China. We also explored the physical mechanisms of SCHDE and its relationship with a series of hydrometeorological variables and large-scale climate indices. The results indicate an intensification of SCHDE over the study basin during the study period, especially for the period 1997-2010. SCHDE occurs mostly in the northeastern and western regions and shows a statistically significant increasing trend mainly in the midwestern and southeast regions, which is mainly associated with an increased temperature (T-air), drying trend in soil moisture (SM), and a sharp increasing trend in evapotranspiration (ET). The contribution of T-air variability to the SCHDE variability is largest (57.27%), followed by SM (28.43%) and ET (14.30%). In addition to T-air, SM deficit before the onset also plays an important role in the SCHDE occurrence. Furthermore, the SCHDE variability tends to be more sensitive to the SM deficits in the high-altitude areas than in the low-altitude areas. Besides, wavelet transform analysis results indicate that the cold phase of ENSO tends to trigger a higher risk of SCHDE events, while El Nino Modoki events have different influences on the variations of SCHDE during different warm/cold phases over the Pearl River basin. |
英文关键词 | climate indices evapotranspiration heat waves Pearl River basin SCHDE soil moisture |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000492795100002 |
WOS关键词 | FLASH DROUGHTS ; SOIL-MOISTURE ; SPATIOTEMPORAL CHARACTERISTICS ; SUBTROPICAL BASIN ; CLIMATE EXTREMES ; PRECIPITATION ; SIMULATION ; MOUNTAIN ; IMPACTS ; MODEL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225425 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.China Univ Geosci Beijing, Sch Water Resources & Environm, Beijing, Peoples R China; 2.Jinan Univ, Inst Groundwater & Earth Sci, Guangzhou 510632, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Haoyue,Wu, Chuanhao,Hu, Bill X.. Recent intensification of short-term concurrent hot and dry extremes over the Pearl River basin, China[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(13):4924-4937. |
APA | Zhang, Haoyue,Wu, Chuanhao,&Hu, Bill X..(2019).Recent intensification of short-term concurrent hot and dry extremes over the Pearl River basin, China.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(13),4924-4937. |
MLA | Zhang, Haoyue,et al."Recent intensification of short-term concurrent hot and dry extremes over the Pearl River basin, China".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.13(2019):4924-4937. |
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