Regulation of South China Sea throughflow by pressure difference
Huang, Rui Xin
MetadataShow full item record
Sea Surface Height (SSH) data from the European Centre for Medium-Range Weather Forecasts-Ocean Reanalysis System 4 (ECMWF-ORAS4) are used to determine the pressure difference in connection with variability of the South China Sea ThroughFlow (SCSTF) from 1958 to 2007. Two branches of SCSTF, the Karimata-Sunda Strait ThroughFlow (KSSTF) and the Mindoro Strait ThroughFlow (MSTF), are examined. Using the ensemble empirical mode decomposition method (EEMD), time series of pressure difference and volume transport are decomposed into intrinsic mode functions and trend functions, with the corresponding variability on different time scales. Pressure difference agrees with the KSSTF volume transport on decadal time scale; while for the MSTF, pressure difference varies similarly with volume transport on interannual time scale. Separating the dynamic height difference into the thermal and haline terms, for the KSSTF more than half of the dynamic height difference (32 cm) is due to the thermal contributions; while the remaining dynamic height difference (23 cm) is due to the haline contributions. For the MSTF, the dynamic height difference (29 cm) is primarily due to the thermal contribution (26 cm).
Author Posting. © American Geophysical Union, 2016. 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 121 (2016): 4077–4096, doi:10.1002/2015JC011177.
Suggested CitationArticle: Qin, Huiling, Huang, Rui Xin, Wang, Weiqiang, Xue, Huijie, "Regulation of South China Sea throughflow by pressure difference", Journal of Geophysical Research: Oceans 121 (2016): 4077–4096, https://hdl.handle.net/1912/8481
Showing items related by title, author, creator and subject.
Interannual variability of the South China Sea throughflow inferred from wind data and an ocean data assimilation product Wang, Dong Xiao; Liu, Qinyan; Huang, Rui Xin; Du, Yan; Qu, Tangdong (American Geophysical Union, 2006-07-26)The Luzon Strait transport, as an index for the South China Sea throughflow, has attracted much attention. In this study the interannual variability of the Luzon Strait transport is examined, using the Island Rule and ...
Yang, Jiayan; Lin, Xiaopei; Wu, Dexing (John Wiley & Sons, 2013-12-16)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 ...
South China Sea hydrological changes and Pacific Walker Circulation variations over the last millennium Yan, Hong; Sun, Liguang; Oppo, Delia W.; Wang, Yuhong; Liu, Zhonghui; Xie, Zhouqing; Liu, Xiaodong; Cheng, Wenhan (Nature Publishing Group, 2011-04-26)The relative importance of north–south migrations of the intertropical convergence zone (ITCZ) versus El Niño-Southern Oscillation and its associated Pacific Walker Circulation (PWC) variability for past hydrological change ...