An observation of the three-dimensional structure of a cross-shelf penetrating front off the Changjiang mouth
Yuan, DL; Li, Y; He, L; Zhou, H; Li, RX; Wang, F; Lei, H; Hu, DX; dyuan@ms.qdio.ac.cn
2010
发表期刊DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
ISSN0967-0645
卷号57期号:19-20页码:1827-1834
摘要Satellite images and in situ hydrography and nutrient observations are used to study the three-dimensional structure of a penetrating front off the Changjiang mouth in the East China Sea. The satellite images of MODIS/Terra on October 16, 2006 show anomalously high concentrations of chlorophyll and total suspended sediments extending offshore from the mean coastal front off the Chiangjiang mouth. However, the sea-surface temperature image of the same satellite shows no signature of this extension at all. The in situ hydrography measured during the same time as the satellite images discloses that the surface layer of the front is occupied by low-salinity waters from the nearshore area, which suggests a cross-shelf jet covering a distance of about 50 km. A counter intrusion underneath the surface offshore jet is indicated by an increase of the subsurface temperature and salinity during the offshore excursion of the front, which leads to a significant temperature inversion at the head of the front. The vertical temperature and salinity distribution shows propensity of double diffusive processes, which may contribute to the ensuing evolution of the front. The nutrient distribution of the front is consistent with the cross-shelf jet derived from the hydrographic data, with surface and bottom intensified concentrations and minimum mid-depth concentrations, suggesting that the primary transport of the surface nutrients is in the horizontal cross-shelf direction. The potential dynamics of the frontal intrusion is discussed in light of wind forcing and frontal instability. The intrusion is found to be very important to cross-shelf and cross-front exchanges in the East China Sea. (C) 2010 Elsevier Ltd. All rights reserved.
部门归属[Yuan, Dongliang; Li, Yao; He, Lei; Zhou, Hui; Li, Ruixiang; Wang, Fan; Hu, Dunxin] Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China; [Yuan, Dongliang; Li, Yao; He, Lei; Zhou, Hui; Li, Ruixiang; Wang, Fan; Hu, Dunxin] Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China; [Li, Yao] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China; [Lei, Hui] State Ocean Adm, Inst Oceanog 2, Hangzhou, Zhejiang, Peoples R China; [Li, Ruixiang] State Ocean Adm, S China Sea Marine Engn Surveying Ctr, Guangzhou, Guangdong, Peoples R China
关键词Cross-shelf Penetrating Front Changjiang Mouth Three-dimensional Structure
学科领域Oceanography
URL查看原文
收录类别sci
资助项目LED
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/6197
专题热带海洋环境国家重点实验室(LTO)
通讯作者dyuan@ms.qdio.ac.cn
推荐引用方式
GB/T 7714
Yuan, DL,Li, Y,He, L,et al. An observation of the three-dimensional structure of a cross-shelf penetrating front off the Changjiang mouth[J]. DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2010,57(19-20):1827-1834.
APA Yuan, DL.,Li, Y.,He, L.,Zhou, H.,Li, RX.,...&dyuan@ms.qdio.ac.cn.(2010).An observation of the three-dimensional structure of a cross-shelf penetrating front off the Changjiang mouth.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,57(19-20),1827-1834.
MLA Yuan, DL,et al."An observation of the three-dimensional structure of a cross-shelf penetrating front off the Changjiang mouth".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 57.19-20(2010):1827-1834.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
An observation of th(1549KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。