NDLI: Energetics and temporal variability of internal tides in Luzon Strait: a nonhydrostatic numerical simulation

Content Provider	Springer Nature Link
Author	Li, Mingjie Hou, Yijun Li, Yuanlong Hu, Po
Copyright Year	2012
Abstract	A fully nonlinear, three-dimensional nonhydrostatic model driven by four principal tidal constituents (M2, S2, K1, and O1) is used to investigate the spatial-temporal characteristics and energetics of internal tides in Luzon Strait (LS). The model results show that, during spring (neap) tides, about 64 (47) GW (1 GW=109 W) of barotropic tidal energy is consumed in LS, of which 59.0% (50.5%) is converted to baroclinic tides. About 22 (11) GW of the derived baroclinic energy flux subsequently passes from LS, among which 50.9% (54.3%) flows westward into the South China Sea (SCS) and 45.0% (39.7%) eastward into the Pacific Ocean, and the remaining 16 (13) GW is lost locally owing to dissipation and convection. It is revealed that generation areas of internal tides vary with the spring and neap tide, indicating different source areas for internal solitary waves in the northern SCS. The region around the Batan Islands is the most important generation region of internal tides during both spring and neap tides. In addition, the baroclinic tidal energy has pronounced seasonal variability. Both the total energy transferred from barotropic tides to baroclinic tides and the baroclinic energy flux flowing out of LS are the highest in summer and lowest in winter.
Starting Page	852
Ending Page	867
Page Count	16
File Format	PDF
ISSN	02544059
Journal	Chinese Journal of Oceanology and Limnology
Volume Number	30
Issue Number	5
e-ISSN	19935005
Language	English
Publisher	SP Science Press
Publisher Date	2012-09-05
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	internal tide energetics temporal variability Luzon Strait (LS) MITgcm Oceanography
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Oceanography

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