Open Access Open Access  Restricted Access Subscription Access

RESEARCH ON NEARSHORE WAVE CONDITIONS AT NHAT LE COASTAL AREA (QUANG BINH PROVINCE) BY USING MIKE21-SW

Cham Dao Dinh, Minh Nguyen Quang, Son Nguyen Thai, Cu Nguyen Van

Abstract


Research on marine dynamics, including coastal wave motions, is a concern of countries in the world in general and Vietnam in particular. Coastal wave dynamics has a direct impact on human activities including coastal construction, shipping, irrigation, aquatic resources exploitation, etc. The coastal area of Nhat Le, Quang Binh is one of the areas strongly influenced by the coastal wave regime which increases the risk of coastal erosion, estuarine sedimentation, destroys the economic life, affects marine fishing and directly affects the tourist beach area. This article aims to introduce some research results based on the application of MIKE21-SW model of the Danish Hydraulic Institute (DHI) to simulate coastal wave regime in Nhat Le coastal zone, Quang Binh province. The model results are verified by real-time wave data in long-term from the WaMoS® II Radar System at Quang Binh station. The results show that there are many similarities in wave height and direction between the computational model and the actual observation data from the radar system. This result will be an important basis for research and application for coastal protection, reduction in river mouth sedimentation, clearing and flood drainage in the study area.

Keywords


Wave, MIKE21-SW, radar system, coastal area, Nhat Le.

Full Text:

PDF

References


DHI, 2016. MIKE11, MIKE21FM, MIKESW, User Manual.

http://www.noaa.gov/

http://agora.ex.nii.ac.jp

Holthuijsen, L. H., Booij, N., and Herbers, T. H. C., 1989. A prediction model for stationary, short-crested waves in shallow water with ambient currents. Coastal Engineering, 13(1), 23–54. doi.org/ 10.1016/0378-3839(89)90031-8.

Holthuijsen, L. H., Herman, A., and Booij, N., 2003. Phase-decoupled refraction-diffraction for spectral wave models. Coastal Engineering, 49(4), 291–305. doi.org/10.1016/S0378-3839(03)00065-6.

Komen, G. J., Hasselmann, K., and Hasselmann, K., 1984. On the existence of a fully developed wind-sea spectrum. Journal of Physical Oceanography, 14(8), 1271–1285. doi.org/10.1175/1520-0485 (1984)014<1271:OTEOAF>2.0.CO;2.

Komen, G. J. L. Cavaleri, M. Donelan, K. Hasselmann, S. Hasselmann, and PAEM Janssen, 1994. Dynamics and Modelling of Ocean Waves. Cambridge University Press, UK, 560 p.

Young, I. R., 1999. Wind generated ocean waves (Vol. 2). Elsevier.

Nash, J. E., and Sutcliffe, J. V., 1970. River flow forecasting through conceptual models part I-A discussion of principles. Journal of Hydrology, 10(3), 282–290. doi.org/10.1016/0022-1694(70)90255-6.




DOI: https://doi.org/10.15625/1859-3097/18/3/13240

Journal of Marine Science and Technology ISSN: 1859 3097

Published by Vietnam Academy of Science and Technology