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2016/04/19 14:00 Chair Prof. Chen-Tung Arthur Chen（Department of Oceanography, NSYSU）
Seminar
Poster： ╱ Post date：2016-04-12NCU IHOS Seminar Announcemnet
Speaker：Chair Prof. Chen-Tung Arthur Chen
Place：S-325, Science Building 1
Abstract：
Title：Tibdits on Variations of Subsurface Fronts from the Luzon Strait to the Okinawa Trough
Speaker：Chair Prof. Chen-Tung Arthur Chen
Department of Oceanography, NSYSU
Time：04/19（Tue.）14：00
Place：S-325, Science Building 1
Abstract：
Intermediate waters with a salinity minimum from 350 to 1350 m depths have been reported to flow out of the South China Sea (SCS) through the Luzon Strait (Chen and Huang, JO, 1996;my paper 112). This eastward flowing SCS Intermediate Water (SCSIW) is blocked by the northward flowing Black Stream (Kuroshio) southeast of Taiwan and is forced to turn to the north. The SCSIW subsequently enters and occupies the western half of the Okinawa Trough. Because of strong upwelling in the SCS basin, the SCSIW contains more nutrients than does the Kuroshio Intermediate Water in the Philippine Sea.
One of the major purposes of this presentation is to reconfirm that the SCSIW actually does upwell onto the East China Sea (ECS) shelf and to show that the South China Sea Tropical Water (SCSTW), with a salinity maximum of 50–150 m in depth, follows the same pathway as the SCSIW and similarly occupies the western half of the Okinawa Trough. Part of these relatively nutrient-rich subsurface waters upwell, thereby supplying nutrients to the ECS shelves. The remaining SCSIW and SCSTW flow along with the Kuroshio and can be traced as far east as 140 E, south of Japan (Chen, JGR,2005; my paper 187). This is just around the region where the Oyashio joins the Kuroshio to form the North Pacific Intermediate Water. The nutrient fluxes provided by the Kuroshio (Chen et al., La mer ,1995; my paper 110) may thus play a role in supplying nutrients to the surface waters of the NW North Pacific Ocean in the Oyashio/Kuroshio frontal region with strong vertical mixing.
Spatial and temporal variations of the subsurface fronts in the Luzon Stait (Chen et al., JGR, 2015; my paper 326) and the Okinawa Trough (Chen et al., JGR,2016; my peper 339) will also be presented.
Last modification time：2016-03-28 AM 11:51
