https://scholars.lib.ntu.edu.tw/handle/123456789/302080
標題: | Enhanced buoyancy and hence upwelling of subsurface Kuroshio waters after a typhoon in the southern East China Sea | 作者: | YIING-JANG YANG Chen, Chen-Tung Arthur Liu, Cho-Teng Chuang, W. S. Yang, Y. J. Shiah, Fuh-Kwo Tang, T. Y. Chung, S. W. |
關鍵字: | Buoyancy; East China Sea; Kuroshio; Productivity; Typhoon; Upwelling | 公開日期: | 2003 | 卷: | 42 | 期: | 1-2 | 起(迄)頁: | 65-79 | 來源出版物: | Journal of Marine Systems | 摘要: | Much has been documented worldwide on the implications of the passage of a tropical cyclone on a shelf ecosystem. In particular, wind mixing, resuspension and increased terrestrial runoff have thus far been pinpointed as the three major processes that bring about higher depth-integrated values of nutrients, chlorophyll a, primary and bacterial production, particulate organic carbon and nitrogen concentrations as well as biomass in the water column. Here, however, there is evidence to indicate that the cross-shelf upwelling of nutrient-rich subsurface Kuroshio water likely increased significantly after the passage of typhoon Herb in a normally downwelling region northwest of Taiwan. This phenomenon, most probably due to an enhanced buoyancy effect resulting from excessive rainfall, offers the best explanation for the lower temperatures yet higher salinity and larger amounts of nutrients that were observed in the deep and bottom coastal waters after the typhoon in July 1996. Further, there are indications that the episodic event might have pushed the Kuroshio towards the shelf-break, which then facilitated the onshore transport of subsurface Kuroshio waters. These new sources of nutrients along with nutrients brought in by the increased terrestrial runoff would eventually mix in or upwell to the euphotic zone on the shelf, thereby supporting new production. © 2003 Elsevier Science B.V. All rights reserved. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0042286755&partnerID=40&md5=90c2a9de5c7e7f9402a1a5f0a4bd1eff http://scholars.lib.ntu.edu.tw/handle/123456789/302080 |
DOI: | 10.1016/S0924-7963(03)00065-4 | SDG/關鍵字: | Bacteria; Carbon; Chlorophyll; Ecosystems; Nitrogen; Rain; Runoff; Storms; Wind; Wind mixing; Surface waters; buoyancy; continental shelf; typhoon; upwelling; wind-driven circulation; (South); East China Sea; Bacteria (microorganisms) |
顯示於: | 海洋研究所 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。