原名「台灣學術線上」
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dvd閱讀臺灣公共藝術民主化與臺海和平之分
   
   
   
     
   
 
項次 書目
1
題名:Lead-210 and Polonium-210 Across the Frontal Region between the Kuroshio and the East China Sea, Northeast of Taiwan    
臺灣東北部黑潮與東海交界鋒面鉛─210,釙─210之研究
著者:Chao-Yeuh Yang(楊肇岳) ;Hui-Ching Lin(林慧菁)
出版地區:台灣
出版城市:台北市
學科:地球科學
刊名:Terrestrial, Atmospheric and Oceanic Sciences
卷期:3卷3期(1992.9)
頁碼:379-394
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

吾人測量幾個“黑潮邊緣交換過程”大型計劃測站的鉛─210和釙─210的垂直剖面。在B橫斷陸棚路線測站的表水中,鉛─210和釙─210的活性有由淺水站往深水站漸增的趨勢,這反應了在陸棚水中的鉛─210和釙─210被較有效率的清除。而4531,5131的深水站垂直剖面確顯示在上層水(深度小於100米)釙─210係缺乏,釙─210比鉛─210小於1,而在中層水釙─210係超量(深度200米至500米)。以簡單的盒子模式計算,可求出由表層去除的釙─210有85.4%在中層水中釋放而再循環,鉛─210則僅有2.9%再循環。512A站近陸棚邊緣斷崖,時有湧升或入侵的黑潮水,造成此站釙─210活性富集。5323站位於大陸棚坡上端,極?陡峭,此站鉛─210在整個水柱中均較釙─210過量,係由帶過量的鉛─210沉積顆粒由陸棚外緣往棚坡水域輸送之結果。陸棚淺水站則可見大部份水柱中,釙─21O係過量,僅表面上層(深度小於20米)除外。
Concentration profiles of Pb-210, Po-210 were measured on several KEEP (Kuroshio Edge Exchange Process) program stations. Results of both Pb-210 and Po-210 of surface water along B transect (from station 6115 to station 4531) showed an increasing trend toward deeper water. This reflected the more efficient removal of Pb-210, Po-210 from the shelf water. Vertical profiles of deep water station (i.e. 4531, 5131) did show Po-210 deficiencies, Po-210/Pb-210<1, at upper layer (<100m); and Po-210 excess in the middle layer (200m-500m). With Box Model calculation, the recycling efficiency of Pb-210 and Po-210 in the middle layer is found to be 2.9% and 85.4%. Vertical profile of the near shelf-break station 512A, where upwelling of intrusion of Kuroshio water occurred, showed the feature of richness in Po-210. the profile of the station 5323, located at a very steep upper slope region, showed the feature of Pb-210 excess all over the water column. Some sediment particles which contains excess Pb-210 might re-export from the outer shelf to slope water. The shelf water station was characterized with Po-210 excess in most of the water column except the very top layer (<20m).


    

本卷期目次
Terrestrial, Atmospheric and Oceanic Sciences 3卷3期 (1992.9)
The Kuroshio Fronts and Cold Eddies off Northeastern Taiwan Observed by NOAA-AVHRR Imageries/ Chi-Yuan LinChung-Zen ShyuWen-Hung Shih
The Year-Round Upwelling at the Shelf Break Near the Northern Tip of Taiwan as Evidenced by Chemical Hydrography/ Kon-Kee LiuGwo-Ching GongSaulwood LinChao-Yeuh YangChing-Ling WeiSu-Cheng PaiChong-Kung Wu
The Variability of Hydrographic Fields at Kuroshio's Turning on Northeast of Taiwan/ Jian-Hwa HuJia-Leh Chang
On the Characteristics of Bottom Tidal Currents in Northeast Taiwan/ Chong-Kung Wu
Summer Phytoplankton Community Structure in the Kuroshio Current-Related Upwelling Northeast of Taiwan/ Yuh-Ling Lee
Quantity and Quality of Summer Surface Net Zooplankton in the Kuroshio Current-Induced Upwelling Northeast of Taiwan/ Houng-Yung ChenYuh-Ling Lee
Comparison of Ichthyoplankton Guild in the Kuroshio Edge Exchange Area/ Chih-Shin ChenTai-Sheng Chiu
Larval Fish Composition, Distribution and Assemblages by Scientific Sounder from Eight Stations off Northeastern Taiwan/ Shinn-Pyng Yeh
Distribution of Organic Carbon in the KEEP Area Continental Margin Sediments/ S. LinK. K. LiuM. P. ChenP. ChenF. Y. Chang
Lead-210 and Polonium-210 Across the Frontal Region between the Kuroshio and the East China Sea, Northeast of Taiwan/ Chao-Yeuh YangHui-Ching Lin
Composition and Texture of Surface Sediment Indicating the Depositional Environments off Northeast Taiwan/ Min-Pen ChenKen-Ling LinShen-Chung Lo
Physiographic Characteristics of the Continental Margin, Northeast Taiwan/ Ho-Shing YuEason Hong
A Preliminary Study of the Echo Characters and Sedimentary Processes along the Continental Margin, Northeast of Taiwan/ Eason HongHo-Shing YuI-Shih-Chen
 
   
 
   

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