Publication Date:
2022-05-26
Description:
Author Posting. © American Geophysical Union, 2013. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 118 (2013): 6854–6866, doi:10.1002/2013JC009367.
Description:
The Luzon Strait transport (LST) of water mass from the Pacific Ocean to the South China Sea (SCS) varies significantly with seasons. The mechanisms for this large variability are still not well understood. The steady-state island rule, which is derived from a steady-state model, is not applicable to seasonal time scale variations in a large basin like the Pacific Ocean. In this paper, we will use a theoretical model that is based on the circulation integral around the Philippines. The model relates the LST variability to changes in the boundary currents along the east coast of the Philippines, including the North Equatorial Current (NEC) Bifurcation Latitude (NECBL), the transports of Kuroshio and Mindanao Currents (KC and MC), and to the local wind-stress forcing. Our result shows that a northward shift of the NECBL, a weakening of the KC or a strengthening of the MC would enhance the LST into the SCS. This relationship between the LST and the NEC-KC-MC is consistent with observations. The analytical result is tested by a set of idealized numerical simulations.
Description:
This study has been supported by the
National Science Foundation Grants (OCE 1028739, 0927017) (JY), and
by the Strategic Priority Research Program of the Chinese Academy of
Sciences (XDA11010103), the project of Global Change and Air-Sea
interaction (GASI-03-01-01-02), the Natural Science Foundation of China
(40930844, 41222037), the National Basic Research Program of China
(2013CB956202), Ministry of Education’s 111 Project (B07036) of China,
Yong Science Foundation of Shandong (JQ201111) and Public science
and technology research funds projects of ocean (201205018) (XL and
DW).
Description:
2014-06-16
Keywords:
South China Sea
;
Throughflow
;
Transport
;
Seasonal variations
;
Island rule
Repository Name:
Woods Hole Open Access Server
Type:
Article
Format:
application/pdf
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