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Granulometric Characterization of Sediments Transported by Surface Runoff Generated by Moving Storms : Volume 15, Issue 6 (16/12/2008)

By De Lima, J. L. M. P.

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Book Id: WPLBN0003975986
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: Granulometric Characterization of Sediments Transported by Surface Runoff Generated by Moving Storms : Volume 15, Issue 6 (16/12/2008)  
Author: De Lima, J. L. M. P.
Volume: Vol. 15, Issue 6
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Souza, C. S., Singh, V. P., & M. P. De Lim, J. L. (2008). Granulometric Characterization of Sediments Transported by Surface Runoff Generated by Moving Storms : Volume 15, Issue 6 (16/12/2008). Retrieved from http://worldebookfair.org/


Description
Description: Department of Civil Engineering, Faculty of Science and Technology – Campus 2, University of Coimbra, 3030-788 Coimbra, Portugal. Due to the combined effect of wind and rain, the importance of storm movement to surface flow has long been recognized, at scales ranging from headwater scales to large basins. This study presents the results of laboratory experiments designed to investigate the influence of moving rainfall storms on the dynamics of sediment transport by surface runoff. Experiments were carried out, using a rain simulator and a soil flume. The movement of rainfall was generated by moving the rain simulator at a constant speed in the upstream and downstream directions along the flume. The main objective of the study was to characterize, in laboratory conditions, the distribution of sediment grain-size transported by rainfall-induced overland flow and its temporal evolution. Grain-size distribution of the eroded material is governed by the capacity of flow that transports sediments. Granulometric curves were constructed using conventional hand sieving and a laser diffraction particle size analyser (material below 0.250 mm) for overland flow and sediment deliveries collected at the flume outlet. Surface slope was set at 2%, 7% and 14%. Rainstorms were moved with a constant speed, upslope and downslope, along the flume or were kept static. The results of laboratory experiments show that storm movement, affecting the spatial and temporal distribution of rainfall, has a marked influence on the grain-size characteristics of sediments transported by overland flow. The downstream-moving rainfall storms have higher stream power than do other storm types.

Summary
Granulometric characterization of sediments transported by surface runoff generated by moving storms

Excerpt
Bagnold R. A.: An approach to the sediment transport problem from general physics, US Geological Survey Professional Paper, 422–1, 11–137, 1966.; Bras, R. and Rodrigues-Iturbe, I.: Rainfall generation: a nonstationary time-varying multidimensional model, Water Resour. Res., 12(3), 450–454, 1976.; Bryan, R. B. and Poesen, J.: Laboratory experiments on the influence of slope length on runoff, percolation and rill development, Earth Surf. Processes, 14, 211–231, 1989.; Eagleson, P. S.: Climate, soil and vegetation: The distribution of annual rainfall derived from observed storm sequences, Water Resour. Res., 14(5), 713–721, 1978.; Erpul, G., Gabriels, D., and Janssens, D.: Assessing the drop size distribution of simulated rainfall in a wind tunnel, Soil and Tillage Research 45, 455–463, 1998.; Erpul, G., Gabriels, D., and Janssens, D.: The effect of wind on size and energy of small simulated raindrops: a wind tunnel study, International Agrophysics, 14, 1–7, 2000.; Erpul, G., Norton, L. D., and Gabriels, D.: The Effect of Wind on Raindrop Impact and Rainsplash Detachment, Transactions of American Society of Agricultural Engineering, 45(6), 51–62, 2003a.; Erpul, G., Norton, L. D., and Gabriels, D.: Sediment transport from interrill areas under wind-driven rain, J. Hydrol., 276, 184–197, 2003b.; Erpul, G., Gabriels, D., and Norton L. D.: Wind effects on sediment transport by raindrop-impacted shallow flow, Earth Surf. Processes, 29, 955–967, 2004.; Erpul, G., Gabriels, D., and Norton, L. D.: Sand Detachment by Wind-driven Raindrops, Earth Surf. Processes, 30, 241–250, 2005.; Erpul, G., Gabriels, D., Cornelis, W. M., Samray, H. N., and Guzelordu, T.: Sand detachment under the rains with varying angle of incidence, Catena, 72, 413–422, 2008.; Fitzgerald, E. and Bowden, B.: Quantifying increases in stream power and energy – Using flow duration curves to depict streamflow values, Stormwater, 7(2), 88–94, 2006.; Gabriels, D., Cornelis, W., Pollet, I., Van Coillie, T., and Quessar, M.: The ICE wind tunnel for wind and water erosion studies, Soil Technol., 10, 1–8, 1997.; Guy, B. T., Dickinson W. T., and Rudra R. P.: The roles of rainfall and runoff in the sediment transport capacity of interrill flow, Transactions of the ASAE, 30(5), 1378–1386, 1987.; Huff, F. A.: Time distribution of rainfall in heavy storms, Water Resour. Res., 3(4), 1007–1019, 1967.; Julien, P. Y. and Simons D. B.: Sediment transport capacity of overland flow, Transactions of the ASAE, 28, 755–762, 1985.; Kinnell, P. I. A.: The influence of flow discharge on sediment concentrations in raindrop induced flow transport, Aust. J. Soil Res., 26, 575–582, 1988.; de Lima, J. L. M. P. and Singh, V. P.: Laboratory experiments on the influence of storm movement on overland flow, Journal Physics and Chemistry of the Earth, 28(6–7), 277–282, 2003.; de Lima, J. L. M. P. and Singh, V. P.: The influence of the pattern of moving rainstorms on overland flow, Adv. Water Resour., 25(7), 817–828, 2002.; de Lima, J. L. M. P., Singh, V. P., and de Lima, M. I. P.: The influence of storm movement on water erosion: Storm direction and velocity effects, Catena, 52, 39–56, 2003.; de Lima, J. L. M. P. and Singh, V. P.: The influence of storm movement on overland flow – Laboratory experiments under simulated rainfall, in: Hydrologic Modeling, Water Resources Publications, edited by: Singh II, V. P., Won Seo, and Sonu, J. H., 101–111, 1999.; Esteves, M., Planchon, O., Lapetite, J. M., Silvera, N., and Cadet, P.: The EMIRE large rainfall simulator: design and field testing, Earth Surface Process, 25(7), 681–690, 2000.; Maksimov, V. A.: Computing runoff produced by a heavy rainstorm with a moving center, Sov. Hydrol., 5, 510-513, 1964.; Meyer, L. D.: How rainfall intensity affects interrill erosion, Transactions of the American Society of Agricultural Engineer, 24(6), 1472–1475, 1981.; Morgan, R. P. C.: Soil Erosion and Conservation. London, Longman (second edition), 1995.; Moss, A. J. and Green, P

 

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