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項次 書目
1
題名:Dynamics of currents in a Small-scale Coastal Lagoon, Southwestern Taiwan    
著者:Sen JanHwung-Hweng HwungShenn-Yu ChaoJin-Li Yu
出版地區:台灣
出版城市:台北市
學科:地球科學
關鍵字:Coastal lagoon ; Current ; Convergence ; Divergence
刊名:Terrestrial, Atmospheric and Oceanic Sciences
卷期:10卷4期(1999.12)
頁碼:885-896
語言:英語
摘要: 英文摘要PDF

A portable electromagnetic current meter was used to measure currents in a coastal lagoon southwest of Taiwan. Shipboard measurements were made at ebb and flood stages during neap and spring tides. To retain as much synopticity as possible, each round of measurement covering most of the lagoon was minimized to less than two hours. Observations revealed a stagnation area for tidal currents inside the lagoon. Tidal streams entering and leaving the two inlets converge and diverge at this location. Current speeds in the two inlets range from 30 to 50 cm/s during neap tide and up to 60 cm/s during spring tide. A vertically averaged two-dimensional numerical model was used to simulate tidal currents and possible modulations by winds and river runoff. Model results indicate tidal dominance over other forcing. The width difference between northern and southern entrances determines the strength difference between two tidal streams entering and leaving the lagoon. The strength difference then determines the location of the flow stagnation area. The effect of northerly wind stress pushes the flow stagnant area southward during flood but northward during ebb. The effect of large river runoff (200 m3/s) also modulates the stagnation location, which is moved northward during flooding but is hardly displaced during ebbs! The observational and numerical results also suggest that the flow stagnation may hinder transport of waterborne materials between northern and southern reaches.


    

本卷期目次
Terrestrial, Atmospheric and Oceanic Sciences 10卷4期 (1999.12)
Surface-Wave Analysis in the Taipei Basin from Strong-Motion Data/ Jen-Kuang ChungTzay-Chyn Shin
Experiments with a Spectral Convection Model/ Hung-Chi KuoChao-Tzuen Cheng
Estimates of the Contribution of Below-cloud Scavenging to the Pollutant Loadings of Rain in Taipei, Taiwan/ Neng-Huei LinChi-Ming Peng
Three-Dimensional Acoustic Computation of Four-Component Seismic Data/ How-Wei Chen
Development of an Integrated Earthquake Early Warning System in Taiwan-Case for the Hualien Area Earthquakes/ Yih-Min WuJen-Kuang ChungTzay-Chyn ShinNai-Chi HsiaoYi-Ben TsaiWilliam H. K. LeeTa-Liang Teng
Climate Characteristics of the CWB Global Forecast System: Hydrological Processes and Atmospheric Circulation/ Jau-Ming ChenChin-Tzu FongFeng-Ju WangChih-Hui ShiaoJen-Her ChenMing-Deng Cheng
Preliminary Magnetic Study of the Quaternary Red-Soil Bed on Linkou Terrace, Northern Taiwan/ Teh-Quei LeeSue-Fen LinHan-Chiang Chou
Implications of the Rupture Process from the Displacement Distribution of Strong Ground Motions Recorded during the 21 September 1999 Chi-Chi, Taiwan Earthquake/ Jen-Kuang ChungTzay-Chyn Shin
The ROCSAT-1 IPEI Preliminary Results: Low-Latitude Ionospheric Plasma and Flow Variations/ Shin-Yi SuHuey Ching YehRoderick A. HeelisJing-Mei WuShu-Chih YangLi-Fan LeeHsin-Liang Chen
The ROCSAT-1 IPEI Preliminary Results: Vertical Ion Drift Statistics/ Huey-Ching YehShin-Yi SuRoderick A. HeelisJing-Mei Wu
An Investigation of 19.5 GHz Sky Noise Temperature over Taiwan Area/ Yen-Hsyang ChuShun-Peng Shih
Instrument Performance of the Ocean Color Imager/ Li-Shing LeeYi-Jye Chiang
The Atmospheric Correction of ROCSAT-1 OCI Imagery-PartⅠ: OCITRAN-1/ Shih-Jen HuangGin-Rong LiuTsung-Hua Kuo
The Atmospheric Correction of ROCSAT-1 OCI Imagery-PartⅡ: OCITRAN-2/ Gin-Rong LiuShih-Jen HuangTsung-Hua Kuo
A Comparison of OCI and SeaWiFS Satellite Imagery in the Waters Adjacent to Taiwan/ Hsien-Wen LiChung-Ru HoNan-Jung KuoChun-Te ChenWei-Peng Tsai
Dynamics of currents in a Small-scale Coastal Lagoon, Southwestern Taiwan/ Sen JanHwung-Hweng HwungShenn-Yu ChaoJin-Li Yu
 
   
 
   

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