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項次 書目
1
題名:Effects of Reduced Yangtze River Discharge on the Circulation of Surrounding Seas    
著者:Hung-Jen LeeShenn-Yu ChaoKon-Kee Liu
出版地區:台灣
出版城市:台北市
學科:地球科學
關鍵字:Yangtze River Plume ; Satellite image ; Tracer concentration
刊名:Terrestrial, Atmospheric and Oceanic Sciences
卷期:15卷2期(2004.3)
頁碼:111-132
語言:英語
摘要: 英文摘要PDF

A regional model of the western Pacific Ocean with 1/6° resolution is used to investigate possible effects of reduced Yangtze River discharge on the circulation of surrounding seas. To the extent of data availability, the model is mostly driven by monthly climatological winds and inflows/outflows through open-ocean boundaries. With climatological discharge rate, the Yangtze River plume disperses to the northeast in summer but follows the China Coastal Current (CCC) to the south in winter. While a substantial amount of the summer plume is retained in the southern Yellow Sea and northern East China Sea until the arrival of winter northerly monsoon, the winter Yangtze River discharge is able to escape freely to the south through advection by the CCC. The source water of the CCC is mainly comprised of winter discharge from Yangtze River, remnants of Yangtze River plume water retained in areas northeast of the river mouth from the preceding summer, Yellow Sea water and even some of the Bohai water. The effect of reduced Yangtze River discharge is highly asymmetric between summer and winter. Summer reduction produces an expansive, positive salinity anomaly northeast of the Yangtze River mouth. The response is rather swift and directly proportional to the reduction of freshwater supply. Winter reduction of freshwater discharge from the Yangtze River leads to higher salinity in the CCC south of the river mouth. The winter insensitivity of the CCC to reduced Yangtze outflow arises because the CCC is fed by multiple sources, some of which are not related to winter discharge from Yangtze River. In the highly unlikely event that the Yangtze River discharge is terminated for multiple years, the source water of the CCC will be dominated by the Yellow Sea and even Bohai waters.




本卷期目次
Terrestrial, Atmospheric and Oceanic Sciences 15卷2期 (2004.3)
Effects of Reduced Yangtze River Discharge on the Circulation of Surrounding Seas/ Hung-Jen LeeShenn-Yu ChaoKon-Kee Liu
Numerical Modeling for Earthquake Source Imaging: Implications for Array Design in Determining the Rupture Process/ Yi-Ling HuangBor-Shouh HuangCheng-Sung WangKuo-Liang Wen
Current and Thermal Variations to Westerly Wind Bursts in the Equatorial Pacific Ocean/ Yiing-Jang YangTswen-Yung TangRobert H. Weisberg
Statistical Comparisons of Some External Morphometrical Aspects of the Swimming Crab Protunus sanguinolentus (Herbst) Populations Inhabiting the Keelung Shelf and Taiwan Bank/ Hsiao-Chuan ChangChien-Chung Hsu
Pattern Recognition of High O3 Episodes in Forecasting Daily Maximum Ozone Levels/ Jeong-Sook HeoKi-Hyun KimDong-Sool Kim
Late Holocene Pollen Sequence of the Ilan Plain, Northeastern Taiwan, and its Environmental and Climatic Implications/ Shu-Fen LinPing-Mei LiewTzu-Hua Lai
3-D Velocity Structure Beneath the Chia-Nan Area, Taiwan/ Strong WenChau-Huei Chen
The Signature of Diversification of Source Processes in Controlling Atmospheric Mercury Levels in East Asia
 
   
 
   

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