英格兰北部彭宁集水区“突变波前”洪水的特征及其下游传播

IF 2.7 4区 环境科学与生态学 Q2 Environmental Science
Sam Watkiss, D. Archer
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引用次数: 0

摘要

根据历史和最近的测量数据,在英格兰北部彭宁山脉的河流上发现了可见的洪水波,被称为突发波前事件(AWF)。本文的重点是1983年Wear河和Tees河上两次AWF测量事件的特征及其与“正常”洪水的比较。描述和分析基于同期照片和观测以及数字水平和流量记录。通过比较洪水过程线,将这些事件中15分钟的快速上升与年最大洪峰洪水的最大上升率进行比较。图示了洪水波在下游的传播。15分钟的流量增加与AWF的峰值流量和集水区下游不同测量位置的正常洪水进行了比较,显示出显著差异。AWF在垂直或近垂直波前中的响应特征,以及水平点和泄流点对运动冲击波发生的快速增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The characteristics of ‘abrupt wave front’ floods on Pennine catchments, northern England, and their transmission downstream
Visible flood waves, described as abrupt wave front events (AWF), have been identified on rivers in northern England rising in the Pennines, from both historical and recent gauged data. The focus of this paper is on the characteristics of two gauged AWF events on the Rivers Wear and Tees in 1983 and their comparison to ‘normal’ floods. The description and analysis is based on contemporaneous photographs and observations and on digital level and flow records. The rapid 15-min rise in these events is compared with the maximum rate of rise in annual maximum peak floods by comparing flood hydrographs. The propagation of the flood wave downstream is illustrated. The 15-min increase in discharge is compared in relation to the peak flow for AWF and normal floods at different gauged locations down the catchments showing striking differences. The character of the AWF response in the vertical or near-vertical wave front and rapid increase in both level and discharge points to the occurrence of kinematic shock waves.
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来源期刊
Hydrology Research
Hydrology Research Environmental Science-Water Science and Technology
CiteScore
5.30
自引率
7.40%
发文量
70
审稿时长
17 weeks
期刊介绍: Hydrology Research provides international coverage on all aspects of hydrology in its widest sense, and welcomes the submission of papers from across the subject. While emphasis is placed on studies of the hydrological cycle, the Journal also covers the physics and chemistry of water. Hydrology Research is intended to be a link between basic hydrological research and the practical application of scientific results within the broad field of water management.
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