Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30528
Entropy based Expeditive Methodology for Rating Curves Assessment

Authors: D. Mirauda, M. Greco, P. Moscarelli


The river flow forecasting represents a crucial point to employ for improving a management policy addressed to the right use of water resources as well as for conjugating prevention and defense actions against environmental degradation. The difficulties occurring during the field activities encourage the development and implementation of operative computation and measuring methods addressed to time reduction for data acquisition and processing maintaining a good level of accuracy. Therefore, the aim of the present work is to test a new entropy based expeditive methodology for the evaluation of the rating curves on three gauged sections with different geometric and morphological characteristics. The methodology requires the choice of only three verticals along the measure section and the sampling of only the maximum velocity. The results underline how in most conditions the rating curves drawn can replace those built with classic methodologies, simplifying thus the procedures of data monitoring and calculation.

Keywords: gauged station, entropic approach, expeditive methodology, rating curves

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1095


[1] C. L. Chiu, "Entropy and probability concepts in hydraulics," Journal of Hydraulic Engineering, vol. 113, no. 5, pp. 583-600, May 1987.
[2] C. L. Chiu, "Entropy and 2-D velocity distribution in open channels," Journal of Hydraulic Engineering, vol. 114, no. 7, pp. 738-756, July 1988.
[3] C. L. Chiu, "Velocity distribution in open channel flow," Journal of Hydraulic Engineering, vol. 115, no. 5, pp. 576-594, May 1989.
[4] C. L. Chiu, "Application of entropy concept in open-channel flow," Journal of Hydraulic Engineering, vol. 117, no. 5, pp. 615-628, May 1991.
[5] R. Xia, "Relation between mean and maximum velocities in a natural river," Journal of Hydraulic Engineering, vol. 123, no. 8, pp. 720-723, August 1997.
[6] C. L. Chiu, and C. A. A. Said, "Maximum and mean velocities and entropy in open-channel flow," Journal of Hydraulic Engineering, vol. 121, no. 1, pp. 26-35, January 1995.
[7] M. Greco, and D. Mirauda, "Experimental analysis for the entropic parameter evaluation," in Proc. 2nd Int. Conf New Trends in Water and Environmental Engineering for Safety and Life: Eco-compatible Solutions for Aquatic Environments, Capri (Italy), June 2002.
[8] M. Greco, and D. Mirauda, "Valutazione globale del parametro entropico di velocita," L 'Acqua, vol. 5, pp. 17-23,2002.
[9] M. Greco, and D. Mirauda, "Expeditive methodology for river water discharge evaluation," in Proc. 2nd Int. Conf. on Fluvial Hydraulics, River Flow 2004, Napoli (Italy), June 2004.
[10] C. L. Chiu, and N. C. Tung, "Maximum velocity and regularities in open-channel flow," Journal of Hydraulic Engineering, vol. 128, no. 4, pp. 390-398, April 2002.
[11] T. Moramarco, C. Saltalippi, and V.P. Singh, "Estimation of mean velocity in natural channels based on Chiu's velocity distribution equation," Journal of Hydrologic Engineering, vol. 9, no. 1, pp. 42-50, January 2004.
[12] T. Moramarco, A. Ammari, A. Bumelli, D. Mirauda, and V. Pascale, "Entropy Theory Application for Flow Monitoring in Natural Channels," in Proc. of the iEMSs 4th Biennial Meeting International Congress on Environmental Modelling and Software, Barcelona, Spain, July 2008.
[13] C. L. Chiu, and S. M. Hsu, "Probabilistic approach to modeling of velocity distributions in fluid flows," Journal of Hydrology, vol. 316, pp. 28-42,2006.
[14] A. Bumelli, D. Mirauda, T. Moramarco, and V. Pascale, "Applicability of entropic velocity distributions in natural channel," in Proc. 4th Int. Conf. on Fluvial Hydraulics, River Flow 2008, Izmir-Cesme (Turkey), September 2008.
[15] T. Moramarco, and C. Saltalippi, "Entropic characterization of the mean flow velocity in natural channels," in Proc. of the LASTED International Conference Environmental Modelling and Simulation, St. Thomas, US Virgin Islands, November 2004.
[16] D. Mirauda, M. Greco, and P. Moscarelli, "Practical methods for water discharge measurements in fluvial sections," in Proc. 6th International Conference on River Basin Management including all aspects of Hydrology, Ecology, Environmental Management, Flood Plains and Wetlands, Riverside, California, USA, May 2011.
[17] ISO 748/1997, "Measurement of liquid flow in open channel —Velocity-area methods", 1997.
[18] ISO 1100-2/1998, "Measurement of liquid flow in open channel - Part 2: Determination of the stage-discharge relation",1998.