Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029664 |
Synoptic-Scale Precursors of Extreme UK Summer 3-Hourly Rainfall | |
Champion, Adrian J.1,2; Blenkinsop, Stephen3; Li, Xiao-Feng3; Fowler, Hayley J.3 | |
2019-04-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:8页码:4477-4489 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | The synoptic-scale meteorological conditions leading up to the 30 most extreme subdaily summer rain events for two regions of the United Kingdom (northwest and southeast) were examined for the period 1979-2013. Using a recently available, quality controlled, national hourly rain gauge data set, we were able to identify extreme 3-hr rainfall accumulations that may be indicative of flash flooding. Composites of the state of the atmosphere leading up to these dates were produced to investigate synoptic-scale processes, thus potentially allowing for them to be identified in coarse resolution reanalyses and in climate models. The results show that the two regions have different dominant synoptic-scale conditions leading to extreme 3-hr rainfall, which is thought to be related to the type of rainfall typically experienced in each region. In particular, positive anomalies in mean sea level pressure and the geopotential height at 200 hPa over the United Kingdom are associated with extreme rainfall in the northwest, where the position of the westerly jet is also important. For the southeast, no clear anomalous synoptic-scale conditions could be identified; however, localized moisture sources and unstable air masses were observed in association with extremes. These results indicate the importance of better understanding of both synoptic-scale and thermodynamic drivers of short-duration extreme rainfall, with potential implications in forecasting and flood warning, as well as for understanding the representation of key processes by regional climate models. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000469071400013 |
WOS关键词 | FUTURE CHANGES ; PRECIPITATION ; CLIMATE ; TEMPERATURE ; INCREASE |
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/182469 |
专题 | 气候变化 |
作者单位 | 1.Univ Reading, Dept Meteorol, Reading, Berks, England; 2.Univ Exeter, Coll Engn Math & Phys Sci, Exeter, Devon, England; 3.Newcastle Univ, Water Resource Syst Res Lab, Sch Engn, Newcastle Upon Tyne, Tyne & Wear, England |
推荐引用方式 GB/T 7714 | Champion, Adrian J.,Blenkinsop, Stephen,Li, Xiao-Feng,et al. Synoptic-Scale Precursors of Extreme UK Summer 3-Hourly Rainfall[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(8):4477-4489. |
APA | Champion, Adrian J.,Blenkinsop, Stephen,Li, Xiao-Feng,&Fowler, Hayley J..(2019).Synoptic-Scale Precursors of Extreme UK Summer 3-Hourly Rainfall.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(8),4477-4489. |
MLA | Champion, Adrian J.,et al."Synoptic-Scale Precursors of Extreme UK Summer 3-Hourly Rainfall".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.8(2019):4477-4489. |
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