Bed Topography Reconstruction in a Large Amplitude Meandering Flume: Application of Close Range Photogrammetry

Abstract:

Natural rivers are characterized by continuous variations in bed topography, especially along curved reaches. High resolution topographic data are necessary to analyze the mutual interactions between the downstream flow and the cross-stream flow, which determine the distribution of the bed-shear stress along the channel. Because of the difficulty in acquiring good and accurate data in rivers, the major part of studies have been conducted in laboratory flumes. This paper reports on a laboratory study in which the automatic digital photogrammetric survey was applied to derive the high-resolution Digital Surface Model (DSM) of the bed topography in a large amplitude meandering flume. In order to assess the advantages of the procedure, the bed profiles obtained by the DSM have been compared with those obtained using a servo-controlled vertical profiler (PV09) has been operated and discussed.

• Periodical: Advanced Materials Research (Volumes 875-877)
• Pages: 440-444
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.875-877.440
• Online since: February 2014
• Authors: Mauro Lo Brutto, Donatella Termini
• Keywords: Bed Topography, Close Range Photogrammetry, DSM, Laboratory Flume, Meandering Channel

References

[1] M.S. Yalin: River Mechanics, Pregamon Press, London, (1992).

[2] A.D. Binns and A.M.F. da Silva: On the quantification of the bed development time of alluvial meandering streams. Journal of Hydraulic Enginnering, 135(5), (2009), pp.350-360.

DOI: 10.1061/(asce)hy.1943-7900.0000025

[3] M. Friedrichs and G. Graf: Description of a flume channel profilometry tool using laser line scans. Aquatic Ecology, 40(4), (2006), pp.493-501.

DOI: 10.1007/s10452-004-8057-0

[4] D. Termini: Experimental observations of flow and bed processes in a large-amplitude meandering flume. Journal of Hydraulic Engineering (ASCE), 135(7), (2009), pp.575-587.

DOI: 10.1061/(asce)hy.1943-7900.0000046

[5] J. Palma, P. Morais, L. Guilherme and E. Ad Alves: Positioning system for bed profiling in hydraulic physical models. Motion Control. Edited by Federico Casolo, INTECH, Croatia, (2010).

DOI: 10.5772/6983

[6] G. Zolezzi, M. Guala, D. Termini and G. Seminara: Experimental observations of upstream overdeepening. Journal of Fluid Mechanics, 531, (2005), pp.191-219.

DOI: 10.1017/s0022112005003927

[7] D. Gessese, H. Fuchs, R. Mansberger, A. Klik and D. Rieke-Zapp: Assessment of erosion, deposition and rill development on irregular soil surfaces using close range digital photogrammetry. The Photogrammetric Record, 25(131), (2010), pp.299-318.

DOI: 10.1111/j.1477-9730.2010.00588.x

[8] B.C.P. Heng, J.H. Clander and A. Armstrong: Applying close range digital photogrammetry in soil erosion studies. The Photogrammetric Record, vol. 25(131), (2010), pp.240-265.

DOI: 10.1111/j.1477-9730.2010.00584.x

[9] D. Rieke-Zapp and M.A. Nearing: Digital close range photogrammetry for measurement of soil erosion. The Photogrammetric Record, vol. 20(109), (2010), pp.69-87.

DOI: 10.1111/j.1477-9730.2005.00305.x

[10] J.H. Chandler, J.G. Fryer, J.G. and A. Jack: Metric capabilities of low-cost digital cameras for close range surface measurement. The Photogrammetric Record, vol. 20(109), (2010), pp.12-26.

DOI: 10.1111/j.1477-9730.2005.00302.x

[11] K. Kraus: Photogrammetry, Fundamentals and Standard Processes, Vol. 1, Dümmler/Bonn, (1999).

[12] F. Remondino and C. Fraser: Digital camera calibration methods. Considerations and comparisons. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, 36, Part 5, (2006), pp.266-272.

[13] VDI/VDE Guideline 2634 Part 1, Optical 3D measuring systems – Imaging systems with point-by-point probing. Beuth Verlag, Berlin, (2002).