Brief communication 21 Feb 2018
Brief communication | 21 Feb 2018
Brief Communication: Mapping river ice using drones and structure from motion
Knut Alfredsen et al.
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We present a forecasting system comprising additively set-up conceptual and simple error model. Parameters of the conceptual model were left unaltered, as are in most operational set-ups, and the data-driven model was arranged to forecast the corrective measures the conceptual model needs. We demonstrate that the present procedure could effectively improve forecast accuracy over extended lead times with a reliability degree varying inter-annually and inter-seasonally.
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Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2017-662, https://doi.org/10.5194/hess-2017-662, 2017
Manuscript not accepted for further review
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Short summary
The formation and breakup of ice on rivers in winter may have impacts on everything from built infrastructure to river ecology. Collecting data on river ice is challenging both technically and because since access to the ice may not always be safe. Here we use a low cost drone to map river ice using aerial imagery and a photogrammetry. Through this we can assess ice volumes, ice extent and ice formation and how ice can affect processes in the river and the utilisation of rivers in winter.
The formation and breakup of ice on rivers in winter may have impacts on everything from built...