Premium
The anomalous amplification of M 2 tide in the Taiwan Strait
Author(s) -
Jan Sen,
Chern ChingSheng,
Wang Joe,
Chao ShennYu
Publication year - 2004
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2003gl019373
Subject(s) - geology , bathymetry , trench , seismology , reflection (computer programming) , tidal waves , tidal model , geophysics , wave model , oceanography , geodesy , meteorology , geography , chemistry , organic chemistry , layer (electronics) , computer science , programming language
The complex tidal wave propagation pattern in the Taiwan Strait invites parochialism. Along the eastern (Taiwan) boundary of the strait, the anomalous amplification of M2 tide in the middle often led to the parochial view that two tidal waves coming from both ends of the strait collide in the middle, creating wave resonance. Along the western (China) boundary, one sees a southward progressive tidal wave and hence no wave collision. To reconcile, we examine a few solutions of a numerical tidal model below. Both realistic bottom bathymetry and idealized bottom topographies are used to identify dominant mechanism leading to the complex tidal wave propagation. Our process of elimination identifies the wave reflection of southward propagating tidal wave by the deep trench in the southern strait as the true cause responsible for the complex wave propagation pattern.