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ESurf | Articles | Volume 7, issue 2
Earth Surf. Dynam., 7, 515-536, 2019
https://doi.org/10.5194/esurf-7-515-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Earth Surf. Dynam., 7, 515-536, 2019
https://doi.org/10.5194/esurf-7-515-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 04 Jun 2019

Research article | 04 Jun 2019

An index concentration method for suspended load monitoring in large rivers of the Amazonian foreland

William Santini et al.
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Aalto, R., Maurice-Bourgoin, L., and Dunne T.: Episodic sediment accumulation on Amazonian flood plains influenced by El Niño/Southern Oscillation, Nature, 425, 493–497, https://doi.org/10.1038/nature02002, 2003. 
Aceituno, P.: On the Functioning of the Southern Oscillation in the South American Sector. Part I: Surface Climate, Mon. Weather Rev., https://doi.org/10.1175/1520-0493(1988)116<0505:OTFOTS>2.0.CO;2, 1988. 
Ahrens, J. P.: The fall-velocity equation, J. Waterw., Port C., 126, 99–102, https://doi.org/10.1061/(ASCE)0733-950X(2000)126:2(99), 2000. 
Armijos, E., Crave, A., Vauchel, P., Fraizy, P., Santini, W., Moquet, J. S., Arevalo, N., Carranza, J., and Guyot, J. L.: Suspended sediment dynamics in the Amazon River of Peru, J. S. Am. Earth Sci., 44, 75–84, https://doi.org/10.1016/j.jsames.2012.09.002, 2013. 
Armijos, E., Crave, A., Espinoza, R., Fraizy, P., Dos Santos, A. L. M. R., Sampaio, F., De Oliveira, E., Santini, W., Martinez, J. M., Autin, P., Pantoja, N., and Oliveira, M.: Measuring and modeling vertical gradients in suspended sediments in the Solimões/Amazon River, Hydrol. Process., 31, 654–667, https://doi.org/10.1002/hyp.11059, 2016. 
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Short summary
A simple model is proposed to improve the sediment concentration monitoring in the large rivers of the Peruvian Amazon from an index concentration sampled in the flow. This powerful tool for optimizing the concentration sampling would allow for detailed uncertainty analysis on the sediment fluxes. It could be coupled with remote sensing and hydrological modeling to serve as a step toward the development of an integrated approach for assessing sediment fluxes in poorly monitored basins.
A simple model is proposed to improve the sediment concentration monitoring in the large rivers...
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