Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR020474 |
Effect of sampling time in the laboratory investigation of braided rivers | |
Vesipa, R.; Camporeale, C.; Ridolfi, L. | |
2017-06-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | We focus on the measurement of the bed-elevation of braided networks in flume experiments. In particular, the effect of the survey frequency on the measurement accuracy is studied. To this aim, an innovative measurement system is adopted. It consists of a laser-ultrasonic sensor and can survey the bed-elevation under flowing water. This measurement system was used to profile a flume transect with a frequency of 4 min, without stopping the water discharge. By this technique, the topography of a single transect was continuously acquired during the evolution of a braided river model. Twelve braided rivers generated with different experimental conditions were studied. The main results are (i) there exists a threshold survey frequency (4-8 min in our analysis) which guarantees that the morphological evolution of the braiding channels is fully measured; (ii) if this threshold frequency of survey is exceeded, significant errors occur in the balance of the eroded/deposited sediments and in the evaluation of the bed-elevation dynamics; and (iii) these errors depend on the river stream power. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405997000041 |
WOS关键词 | GRAVEL-BED RIVERS ; DIGITAL PHOTOGRAMMETRY ; SEDIMENT TRANSPORT ; CHANNEL MORPHOLOGY ; VEGETATION ; DYNAMICS ; EVOLUTION ; STREAMS ; SCOUR ; MODEL |
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/22084 |
专题 | 资源环境科学 |
作者单位 | Politecn Torino, Dept Environm Land & Infrastruct Engn, Turin, Italy |
推荐引用方式 GB/T 7714 | Vesipa, R.,Camporeale, C.,Ridolfi, L.. Effect of sampling time in the laboratory investigation of braided rivers[J]. WATER RESOURCES RESEARCH,2017,53(6). |
APA | Vesipa, R.,Camporeale, C.,&Ridolfi, L..(2017).Effect of sampling time in the laboratory investigation of braided rivers.WATER RESOURCES RESEARCH,53(6). |
MLA | Vesipa, R.,et al."Effect of sampling time in the laboratory investigation of braided rivers".WATER RESOURCES RESEARCH 53.6(2017). |
条目包含的文件 | 条目无相关文件。 |
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