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DOI	10.5194/hess-22-1-2018
	Technical note: Stage and water width measurement of a mountain stream using a simple time-lapse camera
	Leduc P.; Ashmore P.; Sjogren D.
发表日期	2018
ISSN	1027-5606
起始页码	1
结束页码	11
卷号	22 期号:1
英文摘要	Remote sensing applied to river monitoring adds complementary information useful for understanding the system behaviour. In this paper, we present a method for visual stage gauging and water surface width measurement using a ground-based time-lapse camera and a fully automatic image analysis algorithm for flow monitoring at a river cross section of a steep, bouldery channel. The remote stage measurement was coupled with a water level logger (pressure transducer) on site and shows that the image-based method gives a reliable estimate of the water height variation and daily flow record when validated against the pressure transducer (R Combining double low line 0.91). From the remotely sensed pictures, we also extracted the water width and show that it is possible to correlate water surface width and stage. The images also provide valuable ancillary information for interpreting and understanding flow hydraulics and site weather conditions. This image-based gauging method is a reliable, informative and inexpensive alternative or adjunct to conventional stage measurement especially for remote sites.
语种	英语
scopus关键词	Cameras; Pressure sensors; Pressure transducers; Remote sensing; Transducers; Water levels; Automatic image analysis; Flow hydraulics; Image-based methods; Mountain streams; Reliable estimates; River monitoring; Technical notes; Width measurements; Rivers; algorithm; automation; flow measurement; hydraulics; image analysis; measurement method; monitoring; mountain stream; remote sensing; transducer; videography; water level
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160166
作者单位	Leduc, P., University of Western Ontario, Department of Geography, London, ON, Canada; Ashmore, P., University of Western Ontario, Department of Geography, London, ON, Canada; Sjogren, D., University of Calgary, Department of Geography, Calgary, AB, Canada
推荐引用方式 GB/T 7714	Leduc P.,Ashmore P.,Sjogren D.. Technical note: Stage and water width measurement of a mountain stream using a simple time-lapse camera[J],2018,22(1).
APA	Leduc P.,Ashmore P.,&Sjogren D..(2018).Technical note: Stage and water width measurement of a mountain stream using a simple time-lapse camera.Hydrology and Earth System Sciences,22(1).
MLA	Leduc P.,et al."Technical note: Stage and water width measurement of a mountain stream using a simple time-lapse camera".Hydrology and Earth System Sciences 22.1(2018).