Work

Internal Tides Reverse Tidal Currents Around Southern Taiwan

Year: 2024

Type: article

Abstract: We present a highly unusual case in southern Taiwan where internal tides (ITs) completely reverse the barotropic currents. A 3D baroclinic model is first validated and confirms the unexpected tidal current in that area. A series of sensitivity simulations are then used to progressively reveal the exact cause. Contrary to popular belief, a large canyon in that area is not responsible for the flow reversal. Results from using a relaxation technique in the model together with an energy flux analysis indicate that the energy of the large ITs emanated from the Luzon Strait is converted to the barotropic energy near the steep slope, which generates a local circulation and reverses the tidal flow there.

Source: Journal of Geophysical Research Oceans

DOI: 10.1029/2024jc020897

Authors: Hao‐Cheng Yu, Y. Joseph Zhang, Sen Jan, Jason C. S. Yu, Chi‐Hao Chu, Chuen‐Teyr Terng, Chi‐Min Chiu

Institutions: William & Mary, Virginia Institute of Marine Science, National Taiwan University, Central Weather Administration, National Sun Yat-sen University

Language: English

Topic: Oceanographic and Atmospheric Processes

Subfield: Oceanography

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,880

OpenAlex ID: W4401393524

FWCI: 0.436

Cites: 12

Cited by: 2

Related to: 10