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URN etd-0110113-165555
Author Yen-Chun Chen
Author's Email Address m995030006@student.nsysu.edu.tw
Statistics This thesis had been viewed 5375 times. Download 613 times.
Department Marine Geology and chemistry
Year 2012
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Temporal and spatial variations of the front between South China Sea and West Philippine Sea waters
Date of Defense 2012-10-22
Page Count 127
Keyword
  • carbonate system
  • El Nino
  • La Nina
  • Luzon Strait
  • Front
  • Abstract The Luzon Strait is located between Taiwan and the Philippines, and is the main channel connecting the West Philippine Sea (WPS) and the South China Sea (SCS). While El Nino events are the focal points for global climate change research, their influence on the distribution of carbonate parameters in the Western Pacific is still uncertain. The aim of this study is to discuss the seasonal variation of water masses between the South China Sea water and the West Philippine Sea water during normal, El Nino and La Nina events. Implications on the transport of carbonate species will then be touched upon.
    This study focuses on the area between 120 °E to 124 °E and 18 °N to 22 °N and clearly identifies the subsurface water and the intermediate water fronts between the SCS and the WPS. The intermediate water front is located at about 122°E, but there are slight differences in latitudes influenced by El Nino and La Nina events.
    During El Nino periods, the salinity and pH are higher, but the normalized dissolved inorganic carbon (NDIC) is lower in the subsurface water than during the normal periods. Due to the North Equatorial Currents bifurcation point being more northward, more WPS subsurface water is transported to the SCS during the El Nino period, and vice versa during the La Nina period. This phenomenon affects the flow of the WPS water to the Penghu Channel. The flux of the subsurface water from the WPS into the SCS and the Penghu Channel during El Nino events is greater than that during normal periods, and is the least during La Nina events.
    Advisory Committee
  • Ruo-Shan Tseng - chair
  • Chin-Chang Hung - co-chair
  • Shu-Lun Wang - co-chair
  • Sen Jan - co-chair
  • Chen-Tung Arthur Chen - advisor
  • Files
  • etd-0110113-165555.pdf
  • indicate access worldwide
    Date of Submission 2013-01-10

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