Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR025480 |
The Paroxysmal Precipitation of the Desert: Flash Floods in the Southwestern United States | |
Smith, James A.1; Baeck, Mary Lynn1; Yang, Long1; Signell, Julia1; Morin, Efrat2; Goodrich, David C.3 | |
2019-12-06 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:12页码:10218-10247 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Israel |
英文摘要 | The 14 September 2015 Hildale, Utah, storm resulted in 20 flash flood fatalities, making it the most deadly natural disaster in Utah history; it is the quintessential example of the "paroxysmal precipitation of the desert". The measured peak discharge from Maxwell Canyon at a drainage area of 5.3 km(2) was 266 m(3)/s, a value that exceeds envelope curve peaks for Utah. The 14 September 2015 flash flood reflects features common to other major flash flood events in the region, as well as unique features. The flood was produced by a hailstorm that was moving rapidly from southwest to northeast and intensified as it interacted with complex terrain. Polarimetric radar observations show that the storm exhibited striking temporal variability, with the Maxwell Canyon tributary of Short Creek and a small portion of the East Fork Virgin River basin experiencing extreme precipitation. Periods of extreme rainfall rates for the 14 September 2015 storm are characterized by K-DP signatures of extreme rainfall in polarimetric radar measurements. Similar K-DP signatures characterized multiple storms that have produced record and near-record flood peaks in Colorado Plateau watersheds. The climatology of monsoon thunderstorms that produce flash floods exhibits striking spatial heterogeneities in storm occurrence and motion. The hydroclimatology of flash flooding in arid/semiarid watersheds of the southwestern United States exhibits relatively weak dependence on drainage basin area. Large flood peaks over a broad range of basin scales can be produced by small thunderstorms like the 14 September 2015 Hildale Storm, which pass close to the outlet. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000500892700001 |
WOS关键词 | NORTH-AMERICAN MONSOON ; RIVER DRAINAGE-BASIN ; EXTREME FLOODS ; METEOROLOGICAL CHARACTERISTICS ; RAINFALL EVENTS ; SUMMER MONSOON ; PART II ; VARIABILITY ; PATTERNS ; STORM |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
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/223956 |
专题 | 资源环境科学 |
作者单位 | 1.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA; 2.Hebrew Univ Jerusalem, Inst Earth Sci, Jerusalem, Israel; 3.USDA ARS, Tucson, AZ USA |
推荐引用方式 GB/T 7714 | Smith, James A.,Baeck, Mary Lynn,Yang, Long,et al. The Paroxysmal Precipitation of the Desert: Flash Floods in the Southwestern United States[J]. WATER RESOURCES RESEARCH,2019,55(12):10218-10247. |
APA | Smith, James A.,Baeck, Mary Lynn,Yang, Long,Signell, Julia,Morin, Efrat,&Goodrich, David C..(2019).The Paroxysmal Precipitation of the Desert: Flash Floods in the Southwestern United States.WATER RESOURCES RESEARCH,55(12),10218-10247. |
MLA | Smith, James A.,et al."The Paroxysmal Precipitation of the Desert: Flash Floods in the Southwestern United States".WATER RESOURCES RESEARCH 55.12(2019):10218-10247. |
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