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Environmental Fluid Mechanics

, Volume 14, Issue 5, pp 1173–1197 | Cite as

Horizontal transport, mixing and retention in a large, shallow estuary: Río de la Plata

  • Cristina P. SilvaEmail author
  • Clelia L. Marti
  • Jörg Imberger
Original Article

Abstract

We use field data and a high-resolution three-dimensional (3D) hydrodynamic numerical model to investigate the horizontal transport and dispersion characteristics in the upper reaches of the shallow Río de la Plata estuary, located between the Argentinean and Uruguayan coasts, with the objective of relating the mixing characteristics to the likelihood of algal bloom formation. The 3D hydrodynamic model was validated with an extensive field experiment including both, synoptic profiling and in situ data, and then used to quantify the geographic variability of the local residence time and rate of dispersion. We show that during a high inflow regime, the aquatic environment near the Uruguayan coast, stretching almost to the middle of the estuary, had short residence time and horizontal dispersion coefficient of around 77 \(\mathrm {m}^{2}\,\mathrm {s}^{-1}\), compared to the conditions along the Argentinean coastal regime where the residence time was much longer and the dispersion coefficient (40 \(\mathrm {m}^{2}\,\mathrm {s}^{-1}\)) much smaller, making the Argentinian coastal margin more susceptible for algae blooms.

Keywords

Horizontal dispersion Water transport Shallow waters Río de la Plata Hydrodynamics 

Notes

Acknowledgments

We thank Aguas y Saneamientos Argentinos (AySA) for providing part of the data used in this study (ADCPs, meteorological from Bernal station and water height from the La Plata gauge stations); E. D’Onofrio (Servicio de Hidrografia Naval, Argentina) and Servicio de Oceanografía, Hidrografía y Meteorología de la Armada, Uruguay for providing water height data from Santa Teresita and Punta del Este stations respectively; Compañía Administradora del Mercado Mayorista Eléctrico Sociedad Anónima for making inflow rate for the Uruguay River available on their website; Drs. F. Lopez and G. Raggio for facilitating logistics and R. Alexander and G. Attwater for technical support during the field experiment. The first author acknowledges the support from a Scholarship for International Research Fees from the University of Western Australia and the Centre for Water Research that provided the living allowance. This article represents Centre for Water Research reference 2349-CS.

References

  1. 1.
    Alosairi Y, Imberger J, Falconer RA (2011) Mixing and flushing in the Persian Gulf (Arabian Gulf). J Geophys Res 116(C3):C03029. doi: 10.1029/2010jc006769
  2. 2.
    Balls PW (1994) Nutrient inputs to estuaries from nine Scottish east coast rivers: influence of estuarine processes on inputs to the North Sea. Estuar Coast Shelf Sci 39(4):329–352CrossRefGoogle Scholar
  3. 3.
    Boschi EE (1988) El ecosistema estuarial del Rio de la Plata. In: Anales del Instituto de Ciencias del Mar y Limnología de la Universidad Nacional Autónoma de México, pp 159–182Google Scholar
  4. 4.
    Brandani A (1987) The coastal zone of Argentina: environments and institutions. Coast Manag 15(1):43–59. doi: 10.1080/08920758709362015 CrossRefGoogle Scholar
  5. 5.
    Burijson V (2003) Situación actual y perspectivas, Freplata. Puertos y Vías Navegables en Argentina, Buenos AiresGoogle Scholar
  6. 6.
    Chan T, Hamilton D, Robson B, Hodges B, Dallimore C (2002) Impacts of hydrological changes on phytoplankton succession in the Swan River, Western Australia. Estuaries 25(6):1406–1415. doi: 10.1007/bf02692234 CrossRefGoogle Scholar
  7. 7.
    Church TM (1986) Biogeochemical factors influencing the residence time of microconstituents in a large tidal estuary, Delaware Bay. Mar Chem 18(2):393–406CrossRefGoogle Scholar
  8. 8.
    Cirelli AF, Ojeda C (2008) Wastewater management in Greater Buenos Aires, Argentina. Desalination 218(1–3):52–61. doi: 10.1016/j.desal.2006.10.040 Google Scholar
  9. 9.
    Cousseau MB (1985) Los peces del Río de la Plata y de su frente maritime. In: Yáñez-Arancibia A (ed) Fish community ecology in estuaries and coastal lagoons: towards and ecosystem integration. NAM Press, México City, pp 515–534Google Scholar
  10. 10.
    Depetris PJ, Griffin J (1968) Suspended load in the Río de la Plata drainage basin. Sedimentology 11(1–2):53–60CrossRefGoogle Scholar
  11. 11.
    Fischer HB (1979) Mixing in inland and coastal waters. Academic press, New YorkGoogle Scholar
  12. 12.
    Fossati M, Piedra-Cueva I (2008) Numerical modelling of residual flow and salinity in the Río de la Plata. Appl Math Model 32(6):1066–1086CrossRefGoogle Scholar
  13. 13.
    Fozdar FM, Parker GJ, Imberger J (1985) Matching temperature and conductivity sensor response characteristics. J Phys Oceanogr 15(11):1557–1569CrossRefGoogle Scholar
  14. 14.
    Framiñan MB, Brown OB (1996) Study of the Río de la Plata turbidity front, part 1: spatial and temporal distribution. Cont Shelf Res 16(10):1259–1282. doi: 10.1016/0278-4343(95)00071-2 CrossRefGoogle Scholar
  15. 15.
    Framiñan MB, Valle-Levinson A, Sepúlveda HH, Brown OB (2008) Tidal variations of flow convergence, shear, and stratification at the Rio de la Plata estuary turbidity front. J Geophys Res 113(C8). doi: 10.1029/2006JC004038
  16. 16.
    Gal G, Hipsey MR, Parparov A, Wagner U, Makler V, Zohary T (2009) Implementation of ecological modeling as an effective management and investigation tool: Lake Kinneret as a case study. Ecol Model 220(13–14):1697–1718. doi: 10.1016/j.ecolmodel.2009.04.010 CrossRefGoogle Scholar
  17. 17.
    Gkioulekas E, Tung K-K (2006) Recent developments in understanding two-dimensional turbulence and the Nastrom–Gage spectrum. J Low Temp Phys 145(1–4):25–57CrossRefGoogle Scholar
  18. 18.
    Gómez N, Bauer D (1998) Phytoplankton from the Southern Coastal Fringe of the Río de la Plata (Buenos Aires, Argentina). Hydrobiologia 380(1–3):1–8. doi: 10.1023/a:1003133106904 CrossRefGoogle Scholar
  19. 19.
    Gómez-Erache M, De León L (2000) Binomio habitat-fauna, in Invertebrados acuáticos: Plankton, in diagnóstico ambiental y socio-demográfico de la zona costera Uruguya del Río de La Plata. Proyecto EcoPlata, vol Tomo II, A-III-2, ArgentinaGoogle Scholar
  20. 20.
    Grimm AM, Ferraz SE, Gomes J (1998) Precipitation anomalies in southern Brazil associated with El Niño and La Niña events. J Clim 11(11):2863–2880CrossRefGoogle Scholar
  21. 21.
    Guerrero RA, Acha EM, Framinãn MB, Lasta CA (1997) Physical oceanography of the Río de la Plata Estuary, Argentina. Cont Shelf Res 17(7):727–742. doi: 10.1016/S0278-4343(96)00061-1
  22. 22.
    Guerrero RA, Osiroff AP, Molinari G, Piola AR (2003) Análisis de datos históricos de temperatura y salinidad del Río de la Plata y la plataforma adyacente, Buenos AiresGoogle Scholar
  23. 23.
    Haller G, Yuan G (2000) Lagrangian coherent structures and mixing in two-dimensional turbulence. Phys D 147(3):352–370CrossRefGoogle Scholar
  24. 24.
    Hicks B (1975) A procedure for the formulation of bulk transfer coefficients over water. Boundary-Layer Meteorol 8(3–4):515–524CrossRefGoogle Scholar
  25. 25.
    Hillmer I, Imberger J (2007) Influence of advection on scales of ecological studies in a coastal equilibrium flow. Cont Shelf Res 27(1):134–153CrossRefGoogle Scholar
  26. 26.
    Hodges BR, Imberger J, Saggio A, Winters KB (2000) Modeling basin-scale internal waves in a stratified lake. Limnol Oceanogr 45:1603–1620. doi: 10.4319/lo.2000.45.7.1603 CrossRefGoogle Scholar
  27. 27.
    Huret M, Dadou I, Dumas F, Lazure P, Garcon V (2005) Coupling physical and biogeochemical processes in the Rio de la Plata plume. Limnol Oceanogr 25:629–653Google Scholar
  28. 28.
    Imberger J, Head R (1994) Measurement of turbulent properties in a natural system. Paper presented at the proceedings of symposium on fundamentals and advancements in hydraulic measurements and experimentationGoogle Scholar
  29. 29.
    Jaime P, Menéndez A, Uriburu Quirno M, Torchio J (2002) Análisis del régimen hidrológico de los ríos Paraná y Uruguay, vol LHA 05–216-02. Buenos AiresGoogle Scholar
  30. 30.
    Jullien M-C, Paret J, Tabeling P (1999) Richardson pair dispersion in two-dimensional turbulence. Phys Rev Lett 82(14):2872–2875CrossRefGoogle Scholar
  31. 31.
    Kierstead H, Slobodkin LB (1953) The size of water masses containing plankton blooms. J Mar Res 12(1):141–147Google Scholar
  32. 32.
    Laval B, Imberger J, Findikakis AN (2003) Mass transport between a semienclosed basin and the ocean: Maracaibo System. J Geophys Res 108(C7):3234. doi: 10.1029/2002jc001571 CrossRefGoogle Scholar
  33. 33.
    Laval BE, Imberger J, Findikakis AN (2005) Dynamics of a large tropical lake: Lake Maracaibo. Aquat Sci 67(3):337–349CrossRefGoogle Scholar
  34. 34.
    Lawrence GA, Ashley KI, Yonemitsu N, Ellis JR (1995) Natural dispersion in a small lake. Limnol Oceanogr 40:1519–1526CrossRefGoogle Scholar
  35. 35.
    Leonard B (1991) The ULTIMATE conservative difference scheme applied to unsteady one-dimensional advection. Comput Methods Appl Mech Eng 88(1):17–74CrossRefGoogle Scholar
  36. 36.
    Lumley JL, Tennekes H, Tennekes H (1972) A first course in turbulence. MIT Press, CambridgeGoogle Scholar
  37. 37.
    Marti CL, Alexander R, Raggio G, Imberger J (2011) Modelling of algal blooms in the upper Rio de la Plata estuary. Centre for Water Research, NedlandsGoogle Scholar
  38. 38.
    Menéndez A, Jaime P, Natale O (2002) Nutrients balance in the Rio de la Plata River using mathematical modelling. In: 5th International Conference HydroInformaticsGoogle Scholar
  39. 39.
    Menéndez AN (2002) Three decades of development and application of numerical simulation tools at INA Hydraulics Lab. In: Idelsohn S, Sonzogni V, Cardona A (eds) Mecánica computacional, vol XXI. pp 2247–2266Google Scholar
  40. 40.
    Morillo S, Imberger J, Antenucci JP, Copetti D (2009) Using impellers to distribute local nutrient loadings in a stratified lake: Lake Como, Italy. J Hydraul Eng 135(7):564–574CrossRefGoogle Scholar
  41. 41.
    Muniz P, Venturini N, Gómez-Erache M (2004) Spatial distribution of chromium and lead in the benthic environment of coastal areas of the Río de la Plata estuary (Montevideo, Uruguai). Braz J Biol 64(1):103–116CrossRefGoogle Scholar
  42. 42.
    Nagy G, Gómez-Erache M, López C, Perdomo A (2002) Distribution patterns of nutrients and symptoms of eutrophication in the Rio de la Plata River Estuary System. Hydrobiologia 475(1):125–139CrossRefGoogle Scholar
  43. 43.
    O’Connor WP (1991) A numerical model of tides and storm surges in the Rio de la Plata Estuary. Cont Shelf Res 11(12):1491–1508CrossRefGoogle Scholar
  44. 44.
    O’Farrell I, Lombardo RJ, Loez C (2002) The assessment of water quality in the lower Luján River (Buenos Aires, Argentina): phytoplankton and algal bioassays. Environ Pollut 120(2):207–218CrossRefGoogle Scholar
  45. 45.
    Okely P, Imberger J, Antenucci JP (2010) Processes affecting horizontal mixing and dispersion in Winam Gulf, Lake Victoria. Limnol Oceanogr 55(5):1865–1880CrossRefGoogle Scholar
  46. 46.
    Okubo A (1971) Oceanic diffusion diagrams. In: Deep sea research and oceanographic abstracts, vol 8. Elsevier, Amsterdam, pp 789–802Google Scholar
  47. 47.
    Paerl HW (1988) Nuisance phytoplankton blooms in coastal, estuarine, and inland waters. Limnol Oceanogr 33:823–847CrossRefGoogle Scholar
  48. 48.
    Paerl HW (1997) Coastal eutrophication and harmful algal blooms: importance of atmospheric deposition and groundwater as“ new” nitrogen and other nutrient sources. Limnol Oceanogr 42(5):1154–1165CrossRefGoogle Scholar
  49. 49.
    Peterson DH, Smith RE, Hager SW, Harmon DD, Herndon RE, Schemel LE (1985) Interannual variability in dissolved inorganic nutrients in Northern San Francisco Bay Estuary. In: Temporal dynamics of an estuary. Springer, San Francisco Bay, pp 37–58Google Scholar
  50. 50.
    Piedra-Cueva I, Rodriguez H (2004) Modeling the Rio de la Plata circulation. In: Estuarine and coastal modeling. Eighth International ConferenceGoogle Scholar
  51. 51.
    Piedra-Cueva I, Fossati M (2007) Residual currents and corridor of flow in the Rio de la Plata. Appl Math Model 31(3):564–577CrossRefGoogle Scholar
  52. 52.
    Prario BE, Dragani W, Mediavilla DG, D’Onofrio E (2011) Hydrodynamic numerical simulation at the mouths of the Parana and Uruguay rivers and the upper Rio de la Plata estuary: a realistic boundary condition. Appl Math Model 35(11):5265–5275CrossRefGoogle Scholar
  53. 53.
    Reynolds CS, Huszar V, Kruk C, Naselli-Flores L, Melo S (2002) Towards a functional classification of the freshwater phytoplankton. J Plankton Res 24(5):417–428CrossRefGoogle Scholar
  54. 54.
    Richardson LF (1926) Atmospheric diffusion shown on a distance-neighbour graph. Proc R Soc Lond Ser A 110(756):709–737CrossRefGoogle Scholar
  55. 55.
    Robert HK, Montgomery D (1980) Two-dimensional turbulence. Rep Prog Phys 43:547–619CrossRefGoogle Scholar
  56. 56.
    Robson BJ, Hamilton DP (2004) Three-dimensional modelling of a Microcystis bloom event in the Swan River estuary, Western Australia. Ecol Model 174(1–2):203–222. doi: 10.1016/j.ecolmodel.2004.01.006 CrossRefGoogle Scholar
  57. 57.
    Sepúlveda HH, Valle-Levinson A, Framiñan MB (2004) Observations of subtidal and tidal flow in the Rıo de la Plata estuary. Cont Shelf Res 24(4):509–525CrossRefGoogle Scholar
  58. 58.
    Simanjuntak MA, Imberger J, Nakayama K, Ishikawa T (2011) Benthic and interfacial mixing in a strongly-stratified estuary. J Hydraul Res 49(6):791–798CrossRefGoogle Scholar
  59. 59.
    Simionato C, Dragani W, Nuñez M, Engel E (2002) Towards an operational forecasting system for the Río de la Plata estuary surface elevation and currents. Mecánica Computacional 21:2412–2430Google Scholar
  60. 60.
    Simionato C, Dragani W, Nuñez M, Engel M (2004) A set of 3-D nested models for tidal propagation from the argentinean continental shelf to the Río de la Plata estuary—part I. M2. J Coast Res 20:893–912CrossRefGoogle Scholar
  61. 61.
    Simionato C, Meccia V, Dragani W, Nuñez M (2006) On the use of the NCEP/NCAR surface winds for modeling barotropic circulation in the Río de la Plata estuary. Estuar Coast Shelf Sci 70(1):195–206CrossRefGoogle Scholar
  62. 62.
    Simionato CG, Nuñez MN, Engel M (2001) The salinity front of the Río de la Plata: a numerical case study for winter and summer conditions. Geophys Res Lett 28(13):2641–2644CrossRefGoogle Scholar
  63. 63.
    Simionato CG, Dragani W, Meccia V, Nuñez M (2004) A numerical study of the barotropic circulation of the Rı’o de la Plata estuary: sensitivity to bathymetry, the Earth’s rotation and low frequency wind variability. Estuar Coast Shelf Sci 61(2):261–273. doi: 10.1016/j.ecss.2004.05.005 CrossRefGoogle Scholar
  64. 64.
    Simionato CG, Meccia VL, Dragani WC (2009) On the path of plumes of the Río De La Plata estuary main tributaries and their mixing scales. Geoacta 34(2):87–116Google Scholar
  65. 65.
    Smagorinsky J (1963) General circulation experiments with the primitive equations: I. The basic experiment. Mon Weather Rev 91(3):99–164CrossRefGoogle Scholar
  66. 66.
    Staniforth A, Côté J (1991) Semi-Lagrangian integration schemes for atmospheric models: a review. Mon Weather Rev 119(9):2206–2223CrossRefGoogle Scholar
  67. 67.
    Taylor G (1921) Experiments with rotating fluids. Proc R Soc Lond Ser A 100(703):114–121CrossRefGoogle Scholar
  68. 68.
    Vieira JR, Lanfredi NW (1996) A hydrodynamic model for the Río de la Plata, Argentina. J Coast Res 12:430–446Google Scholar
  69. 69.
    Wolanski E, Imberger J, Heron M (1984) Island wakes in shallow coastal waters. J Geophys Res 89(C6):10553–10569CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Cristina P. Silva
    • 1
    Email author
  • Clelia L. Marti
    • 1
  • Jörg Imberger
    • 1
  1. 1.Centre for Water ResearchThe University of Western AustraliaCrawleyAustralia

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