CHARACTERISTICS OF HYDRODYNAMICS AND FLUSHING TIME IN NAI LAGOON (NINH THUAN) - RESULTS BASED ON THE DELFT3D

Vu Duy Vinh, Nguyen Van Quan
Author affiliations

Authors

  • Vu Duy Vinh Institute of Marine Environment and Resources-VAST
  • Nguyen Van Quan Institute of Marine Environment and Resources-VAST

DOI:

https://doi.org/10.15625/1859-3097/15/3/7220

Keywords:

Nai lagoon, hydrodynamics, flushing time, Delft3D model.

Abstract

This paper presents the results of research and estimate on the hydrodynamic characteristics and flushing time in Nai lagoon (Ninh Thuan province). The 3D model was set up based on Delft3D modelling system and calibration, validation through measured data of currents, water elevation in typical seasons (rainy and dry). The results showed that tidal amplitude in the lagoon decreases 0.05 - 0.2 m compared to the value in the open sea. The tidal lag in the lagoon is about 1 hour (high tide) and about 1 - 3 hours for low tide. Current velocity in Nai lagoon is always less than 0.2 m/s. Flushing time in Nai lagoon is fairly good compared with other lagoons in Vietnam as well as in the world with the value of about 2.4 - 2.7 days.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

Brambati, A., 2000. Coastal sediments and biota as indicators of Hg contamination in the Marano and Grado Lagoons. Materials and Geoenvironment, 48(1): 165-171.

Ferrarin, C., and Umgiesser, G., 2005. Hydrodynamic modeling of a coastal lagoon: the Cabras lagoon in Sardinia, Italy. Ecological Modelling, 188(2): 340-357. DOI: https://doi.org/10.1016/j.ecolmodel.2005.01.061

Cucco, A., and Umgiesser, G., 2006. Modeling the Venice Lagoon residence time. Ecological Modelling, 193(1): 34-51. DOI: https://doi.org/10.1016/j.ecolmodel.2005.07.043

Petti, M., and Bosa, S., 2004. Pollution transport in the lagoon of Grado and Marano: a two dimensional modelling approach. In River Flow (pp. 1183-1192). DOI: https://doi.org/10.1201/b16998-154

Jones, M. T., Weatherall, P., Cramer, R. N., 2009. User guide to the centenary edition of the GEBCO Digital Atlas and its data sets. Natural Environment Research Council.

Lyard, F., Lefevre, F., Letellier, T., and Francis, O., 2006. Modelling the global ocean tides: modern insights from FES2004. Ocean Dynamics, 56(5-6): 394-415. DOI: https://doi.org/10.1007/s10236-006-0086-x

T. Boyer, Ed.; A. Mishonov, Technical Ed., 2013. World Ocean Atlas 2013 Product Documentation. Ocean Climate Laboratory, NODC/NESDIS/NOAA. Silver Spring, MD 20910-3282.

Delft Hydraulics, 2003. Delft3D-FLOW User Manual; Delft3D-WAQ User Manual

Dronkers, J., and Zimmerman, J. T. F., 1982. Some principles of mixing in tidal lagoons. Oceanologica Acta, Special issue.

Ferla, M., Cordella, M., Michielli, L., and Rusconi, A., 2007. Long-term variations on sea level and tidal regime in the lagoon of Venice. Estuarine, Coastal and Shelf Science, 75(1): 214-222. DOI: https://doi.org/10.1016/j.ecss.2007.03.037

Monsen, N. E., Cloern, J. E., Lucas, L. V., and Monismith, S. G., 2002. A comment on the use of flushing time, residence time, and age as transport time scales. Limnology and Oceanography, 47(5): 1545-1553. DOI: https://doi.org/10.4319/lo.2002.47.5.1545

Rapaglia, J., Ferrarin, C., Zaggia, L., Moore, W. S., Umgiesser, G., Garcia-Solsona, E., Garcia-Orellana, J., and Masqué, P., 2010. Investigation of residence time and groundwater flux in Venice Lagoon: comparing radium isotope and hydrodynamical models. Journal of environmental radioactivity, 101(7): 571-581. DOI: https://doi.org/10.1016/j.jenvrad.2009.08.010

Wang, Y., Ridd, P. V., Heron, M. L., Stieglitz, T. C., and Orpin, A. R., 2007. Flushing time of solutes and pollutants in the central Great Barrier Reef lagoon, Australia. Marine and Freshwater Research, 58(8): 778-791. DOI: https://doi.org/10.1071/MF06148

Hung, J. J., and Kuo, F., 2002. Temporal variability of carbon and nutrient budgets from a tropical lagoon in Chiku, Southwestern Taiwan. Estuarine, coastal and shelf science, 54(5): 887-900. DOI: https://doi.org/10.1006/ecss.2001.0863

Downloads

Published

30-09-2015

How to Cite

Vinh, V. D., & Quan, N. V. (2015). CHARACTERISTICS OF HYDRODYNAMICS AND FLUSHING TIME IN NAI LAGOON (NINH THUAN) - RESULTS BASED ON THE DELFT3D. Vietnam Journal of Marine Science and Technology, 15(3), 250–256. https://doi.org/10.15625/1859-3097/15/3/7220

Issue

Section

Articles

Most read articles by the same author(s)

<< < 1 2 3 4 > >>