Articles | Volume 19, issue 6
Hydrol. Earth Syst. Sci., 19, 2963–2969, 2015
https://doi.org/10.5194/hess-19-2963-2015
Hydrol. Earth Syst. Sci., 19, 2963–2969, 2015
https://doi.org/10.5194/hess-19-2963-2015

Technical note 26 Jun 2015

Technical note | 26 Jun 2015

Technical Note: Semi-automated effective width extraction from time-lapse RGB imagery of a remote, braided Greenlandic river

C. J. Gleason et al.

Related authors

Hourly surface meltwater routing for a Greenlandic supraglacial catchment across hillslopes and through a dense topological channel network
Colin J. Gleason, Kang Yang, Dongmei Feng, Laurence C. Smith, Kai Liu, Lincoln H. Pitcher, Vena W. Chu, Matthew G. Cooper, Brandon T. Overstreet, Asa K. Rennermalm, and Jonathan C. Ryan
The Cryosphere, 15, 2315–2331, https://doi.org/10.5194/tc-15-2315-2021,https://doi.org/10.5194/tc-15-2315-2021, 2021
Short summary

Related subject area

Subject: Rivers and Lakes | Techniques and Approaches: Instruments and observation techniques
Contrasting hydrological and thermal intensities determine seasonal lake-level variations – a case study at Paiku Co on the southern Tibetan Plateau
Yanbin Lei, Tandong Yao, Kun Yang, Lazhu, Yaoming Ma, and Broxton W. Bird
Hydrol. Earth Syst. Sci., 25, 3163–3177, https://doi.org/10.5194/hess-25-3163-2021,https://doi.org/10.5194/hess-25-3163-2021, 2021
Short summary
Technical note: Mobile open dynamic chamber measurement of methane macroseeps in lakes
Frederic Thalasso, Katey Walter Anthony, Olya Irzak, Ethan Chaleff, Laughlin Barker, Peter Anthony, Philip Hanke, and Rodrigo Gonzalez-Valencia
Hydrol. Earth Syst. Sci., 24, 6047–6058, https://doi.org/10.5194/hess-24-6047-2020,https://doi.org/10.5194/hess-24-6047-2020, 2020
Short summary
A Fast-Response Automated Gas Equilibrator (FaRAGE) for continuous in situ measurement of CH4 and CO2 dissolved in water
Shangbin Xiao, Liu Liu, Wei Wang, Andreas Lorke, Jason Woodhouse, and Hans-Peter Grossart
Hydrol. Earth Syst. Sci., 24, 3871–3880, https://doi.org/10.5194/hess-24-3871-2020,https://doi.org/10.5194/hess-24-3871-2020, 2020
Short summary
Technical note: Greenhouse gas flux studies: an automated online system for gas emission measurements in aquatic environments
Nguyen Thanh Duc, Samuel Silverstein, Martin Wik, Patrick Crill, David Bastviken, and Ruth K. Varner
Hydrol. Earth Syst. Sci., 24, 3417–3430, https://doi.org/10.5194/hess-24-3417-2020,https://doi.org/10.5194/hess-24-3417-2020, 2020
Short summary
Evolution and dynamics of the vertical temperature profile in an oligotrophic lake
Zvjezdana B. Klaić, Karmen Babić, and Mirko Orlić
Hydrol. Earth Syst. Sci., 24, 3399–3416, https://doi.org/10.5194/hess-24-3399-2020,https://doi.org/10.5194/hess-24-3399-2020, 2020
Short summary

Cited articles

Ashmore, P. and Sauks, E.: Prediction of discharge from water surface width in a braided river with implications for at-a-station hydraulic geometry, Water Resour. Res., 42, W03406, https://doi.org/10.1029/2005wr003993, 2006.
Ashmore, P., Bertoldi, W., and Gardner, J. T.: Active width of gravel-bed braided rivers, Earth Surf. Proc. Land., 36, 1510–1521, https://doi.org/10.1002/esp.2182, 2011.
Bertoldi, W., Zanoni, L., and Tubino, M.: Planform dynamics of braided streams, Earth Surf. Proc. Land., 34, 547–557, https://doi.org/10.1002/esp.1755, 2009.
Bertoldi, W., Zanoni, L., and Tubino, M.: Assessment of morphological changes induced by flow and flood pulses in a gravel bed braided river: the Tagliamento River (Italy), Geomorphology, 114, 348–360, https://doi.org/10.1016/j.geomorph.2009.07.017, 2010.
Bird, S., Hogan, D., and Schwab, J.: Photogrammetric monitoring of small streams under a riparian forest canopy, Earth Surf. Proc. Land., 35, 952–970, 2010.
Download
Short summary
Here, we give a semi-automated processing workflow to extract hydraulic parameters from over 10,000 time-lapse images of the remote Isortoq River in Greenland. This workflow allows efficient and accurate (mean accuracy 79.6%) classification of images following an automated similarity filtering process. We also give an effective width hydrograph (a proxy for discharge) for the Isortoq using this workflow, showing the potential of this workflow for enhancing understanding of remote rivers.