Image analysis techniques to estimate river discharge using time-lapse cameras in remote locations


Young, David S., Hart, Jane K. and Martinez, Kirk (2014) Image analysis techniques to estimate river discharge using time-lapse cameras in remote locations Computers & Geosciences, 76, pp. 1-10. (doi:10.1016/j.cageo.2014.11.008).

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Description/Abstract

Cameras have the potential to provide new data streams for environmental science. Improvements in image quality, power consumption and image processing algorithms mean that it is now possible to test camera-based sensing in real-world scenarios. This paper presents an 8-month trial of a camera to monitor discharge in a glacial river, in a situation where this would be difficult to achieve using methods requiring sensors in or close to the river, or human intervention during the measurement period. The results indicate diurnal changes in discharge throughout the year, the importance of subglacial winter water storage, and rapid switching from a “distributed” winter system to a “channelised” summer drainage system in May. They show that discharge changes can be measured with an accuracy that is useful for understanding the relationship between glacier dynamics and flow rates.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.cageo.2014.11.008
ISSNs: 0098-3004 (print)
Keywords: remote sensing, river discharge, glacial melt, time-lapse camera, image analysis, flow rate monitoring
Subjects:
Organisations: Web & Internet Science, Earth Surface Dynamics
ePrint ID: 372550
Date :
Date Event
25 November 2014e-pub ahead of print
March 2015Published
Date Deposited: 16 Dec 2014 10:33
Last Modified: 17 Apr 2017 06:57
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/372550

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