Occurrence features of Rip current at Ha My (Dien Ban district) and Tam Thanh (Tam Ky city) beaches, Quang Nam province

Le Dinh Mau, Nguyen Van Tuan, Nguyen Chi Cong, Tran Van Binh, Pham Ba Trung, Pham Sy Hoan, Ngo Quang Bao Hoang, Phan Thi Ha Tuyen
Author affiliations

Authors

  • Le Dinh Mau Journal of Marine Science and Technology
  • Nguyen Van Tuan
  • Nguyen Chi Cong
  • Tran Van Binh
  • Pham Ba Trung
  • Pham Sy Hoan
  • Ngo Quang Bao Hoang
  • Phan Thi Ha Tuyen

DOI:

https://doi.org/10.15625/1859-3097/19/4A/14587

Keywords:

Rip current, swimming beach, open coast, surf zone, Quang Nam province.

Abstract

Rip current is a relatively strong, narrow current flowing outward from the beach through the surf zone and presenting a hazard to swimmers. This paper presents some occurrence features of Rip current at main swimming beaches in Quang Nam province, Central Vietnam. Study results show that most of swimming beaches along Quang Nam province coast are directly opposed to open sea and strongly affected by swell. Therefore, Rip current system can occur at any time in the year with large dimension and intensity. During Northeast monsoon (November to March) beach morphology is considerably changed by strong wave action, thus the strongest rip current is formed. However, in this period careful swimmers can easily identify where that rip current occurs along the beach. During the transition period from Northeast monsoon to Southwest monsoon (April to May) wave energy is reduced, thus Rip current intensity is also decreased. During Southwest monsoon (June to August) wave energy is not strong and beach is accreted, therefore some Rip currents remain at reasonable morphology places along the beach. During the transition period from Southwest monsoon to Northeast monsoon (September to October) Rip current can occur at deep places along the beach with characteristics of narrow dimension, thus causing more danger to swimmer. Especially, dangerous rip current is caused by swell which comes from active region of tropical cyclone in open sea. In this period wave field in the nearshore region is not rough, thus most of swimmers are not cautious when swimming at dangerous rip current places.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

MacMahan, J. H., Thornton, E. B., and Reniers, A. J., 2006. Rip current review. Coastal Engineering, 53(2–3), 191–208.

https://oceantoday.noaa.gov/ripcurrentsc-ience/. https://oceantoday.noaa.gov/ripcurrentsc-ience/.">

Horikawa, K., and Sasaki, T., 1972. Field observations of nearshore current system. Coastal Engineering in Japan, 15(1), 113–125.

Noda, E. K., 1973. Rip - Currents. In Coastal Engineering 1972 (pp. 653–668).

Vos, R. G., 1976. Observations on the formation and location of transient rip currents. Sedimentary Geology, 16(1), 15–19.

Zyserman, J., Fredsøe, J., and Deigaard, R., 1991. Prediction of the dimensions of a rip current system on a coast with bars. In Coastal Engineering 1990

(pp. 959–972).

Sørensen, O. R., Schäffer, H. A., and Madsen, P. A., 1998. Surf zone dynamics simulated by a Boussinesq type model. III. Wave-induced horizontal nearshore circulations. Coastal Engineering, 33(2–3), 155–176.

Brander, R. W., and Short, A. D., 2000. Morphodynamics of a large-scale rip current system at Muriwai Beach, New Zealand. Marine Geology, 165(1–4), 27–39.

Murray, A. B., and Reydellet, G., 2001. A rip current model based on a hypothesized wave/current interaction. Journal of Coastal Research, 17(3), 517–530.

Schmidt, W. E., Woodward, B. T., Millikan, K. S., Guza, R. T., Raubenheimer, B., and Elgar, S., 2003. A GPS-tracked surf zone drifter. Journal of Atmospheric and Oceanic Technology, 20(7), 1069–1075.

Johnson, D., and Pattiaratchi, C., 2004. Transient rip currents and nearshore circulation on a swell‐dominated beach. Journal of Geophysical Research: Oceans, 109(C2), 1–20.

Johnson, D., and Pattiaratchi, C., 2006. Boussinesq modelling of transient rip currents. Coastal Engineering, 53(5–6), 419–439.

Dalrymple, R. A., 1978. Rip currents and their causes. In Coastal Engineering 1978 (pp. 1414–1427).

Bowen, A. J., and Inman, D. L., 1969. Rip currents: 2. Laboratory and field observations. Journal of Geophysical Research, 74(23), 5479–5490.

Sasaki, T. O., and Horikawa, K., 1978. Observation of nearshore current and edge waves. In Coastal Engineering 1978 (pp. 791–809).

Dalrymple, R. A., 1975. A mechanism for rip current generation on an open coast. Journal of Geophysical Research, 80(24), 3485–3487.

Dalrymple, R. A., and Lozano, C. J., 1978. Wave‐current interaction models for rip currents. Journal of Geophysical Research: Oceans, 83(C12), 6063–6071.

Liu, P. L., and Mei, C. C., 1976. Water motion on a beach in the presence of a breakwater: 1. Waves. Journal of Geophysical Research, 81(18), 3079–3084.

Hino, M., 1975. Theory on Formation of Rip-Current and Cuspidal Coast. In Coastal Engineering 1974 (pp. 901–919).

Nguyễn Bá Xuân, 2011. Cần phòng tránh dòng rip gây tai nạn chết người tại các bãi tắm biển. Tạp chí Khoa học Công nghệ và Môi trường Khánh Hoà, (2), 11.

Phạm Thị Phương Thảo, 2012. Kết quả sơ bộ nghiên cứu dòng Rip khu vực Bãi Dài, Cam Ranh, Khánh Hoà, Việt Nam. Báo cáo Hội nghị Quốc tế Biển Đông 2012, Nha Trang, 12–14/9/2012. Tr. 65.

Lê Đình Mầu, 2013. Đặc điểm dòng Rip (Rip Current) tại các bãi tắm Khánh Hoà. Tạp chí Khoa học Công nghệ và Môi trường Khánh Hoà, (2), 10–16.

Nguyễn Kỳ Phùng, Ngô Nam Thịnh, Trần Tuấn Hoàng, 2012. Nghiên cứu tính toán dòng Rip (Rip current) khu vực Nha Trang. Tạp chí Khoa học và Công nghệ thủy lợi, (12), 85–90.

Đặng Đình Khá, Nguyễn Thọ Sáo, Trần Ngọc Anh, 2016. Mô phỏng dòng tách bờ (RIP current) khu vực bãi biển phía nam Nhơn Lý, Bình Định, bằng mô hình toán. Tạp chí Khoa học ĐHQGHN: Các Khoa học Trái đất và Môi trường, (3), 130–138.

Phạm Văn Tiến, Lê Văn Khoa, 2017. Nghiên cứu dòng rip ven biển Đà Nẵng bằng mô hình MIKE couple. Tạp chí Khoa học Công nghệ Đại học Đà Nẵng, (5), 52–56.

Lê Đình Mầu (Chủ biên), 2014. Đặc điểm xói lở, bồi tụ tại dải ven biển Quảng Nam. Nxb. Khoa học tự nhiên và Công nghệ, Hà Nội. 296 tr.

Downloads

Published

08-11-2019

How to Cite

Mau, L. D., Tuan, N. V., Cong, N. C., Binh, T. V., Trung, P. B., Hoan, P. S., Hoang, N. Q. B., & Tuyen, P. T. H. (2019). Occurrence features of Rip current at Ha My (Dien Ban district) and Tam Thanh (Tam Ky city) beaches, Quang Nam province. Vietnam Journal of Marine Science and Technology, 19(4A), 43–53. https://doi.org/10.15625/1859-3097/19/4A/14587

Issue

Section

Articles