Chapter
May 31, 2018
World Environmental and Water Resources Congress 2018

Analysis of Hydrodynamic Patterns and Suspended Sediment Transport in the Virrilá Estuary-Peru

Publication: World Environmental and Water Resources Congress 2018: Groundwater, Sustainability, and Hydro-Climate/Climate Change

ABSTRACT

As of today the Virrilá Estuary located in Piura, Peru, is polluted with high nitrate and chlorine concentrations. Because of that the mariculture activity of the towns and cities located in that estuary are significantly affected (which is the basis of their economy). Recent field measurements indicate that the nitrate concentrations are related to the suspended sediment concentrations whereas the chlorine distribution is directly associated with the flow recirculation patterns. In order to shed light on the transport dynamics of these contaminants a two-dimensional shallow water equations numerical model that can predict suspended sediment transport and flow recirculation was developed. Field data measurements were used as input to the numerical model and comprised the pollutants concentration, tides data, wind speed and direction, suspended sediment concentration, inflow discharges, and bathymetry. The results of the numerical model showed that the flow patterns of the estuary are mainly driven by the variation on water levels alone and that the interaction of suspended sediment concentrations occurs only in areas near the mouth of the Virrilá Estuary.

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6. ACKNOWLEDGMENTS

This work is part of the Treatment/remediation and recovery of bays project using innovative procedures project led by CITBM and funded by the National Science, Technology and Technological Innovation Council (CONCYTEC in spanish) through the program CIENCIACTIVA. Thanks to Water Research Center CITA-UTEC for the support with the instrumentation for the measurements campaign; Tobias Bleninger and Julio Werner for background and feedback, Carlos Landauro, Justiniano Quispe and César Aguirre for the administrative and logistical support in the measurements. Thanks to Hugo Montoro, Tania Rojas, Mishel Meléndez, and Sofía Valdivia for the support with information processing. Thanks to Herver Caruzo, Elivorio Castillo for the support in the measurements and the transportation of equipment.

7. REFERENCES

McDowell, D. M., O'Connor, B. A., 1977. Hydraulic Behaviour of Estuaries. Macmillan Press, Ltd., London, England.
Thomas, C., Spearman, J., Turnbull, M., 2002.Historical morphological change in the Mersey Estuary. Continental Shelf Research 22 (11–13), 1775–1794.
Blott, S., Pye, K., van der War, D., Near, A., 2006. Long term morphological change and its causes in the Mersey Estuary, NW England. Geomorphology 81 (1–2), 185–206.
Boothroyd, J., 1978. Mesotidal inlets and estuaries. In: Davies, R. (Ed.), Coastal Sediment Environments. Springer, New York, pp. 287–360.
Carter, R., 1988. Coastal Environments. Academic Press, London (671 pp.).
Deltares, 2014. Delft3D-FLOW User Manual. The Netherlands, 3.5 ed.
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Go to World Environmental and Water Resources Congress 2018
World Environmental and Water Resources Congress 2018: Groundwater, Sustainability, and Hydro-Climate/Climate Change
Pages: 81 - 91
Editor: Sri Kamojjala, Las Vegas Valley Water District
ISBN (Online): 978-0-7844-8141-7

History

Published online: May 31, 2018

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Authors

Affiliations

Research Assistant, Technological, Biomedical, and Environmental Research Center—CITBM, Lima, Peru. E-mail: [email protected]
F. Christian [email protected]
Water Resources Engineer, Barr Engineering Co., Minnesota, USA. E-mail: [email protected]
Dept. of Fluids Mechanical Engineering, National Univ. of San Marcos—UNMSM, Lima, Peru. E-mail: [email protected]
Water Research Center—CITA, Univ. of Engineering and Technology, Lima, Peru. E-mail: [email protected]
A. C. Carlos [email protected]
Dept. of Fluids Mechanical Engineering, National Univ. of San Marcos—UNMSM, Lima, Peru. E-mail: [email protected]
D. A. Jorge [email protected]
Water Research Center—CITA, Univ. of Engineering and Technology, Lima, Peru. E-mail: [email protected]

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