Transport of Pacific Water Into the Canada Basin and the Formation of the Chukchi Slope Current
文献类型：期刊论文
| 作者 | Kikuchi, Takashi4; Spall, Michael A.; Pickart, Robert S.; Li, Min1,2,3; Itoh, Motoyo4; Lin, Peigen; Qi, Yiquan5 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
 |
| 出版日期 | 2018 |
| 卷号 | 123期号:10页码:7453 |
| 关键词 | Canada Basin halocline ventilation Chukchi Sea |
| ISSN号 | 2169-9275 |
| DOI | 10.1029/2018JC013825 |
| 英文摘要 | Plain Language Summary A high-resolution regional ocean model together with moored hydrographic and velocity measurements is used to identify the pathways and mechanisms by which Pacific water, modified over the Chukchi shelf, crosses the shelf break into the Canada Basin. Most of the Pacific water flowing into the Arctic Ocean through Bering Strait enters the Canada Basin through Barrow Canyon. Strong advection allows the water to cross the shelf break and exit the shelf. Wind forcing plays little role in this process. Some of the outflowing water from Barrow Canyon flows to the east into the Beaufort Sea; however, approximately 0.4 to 0.5Sv turns to the west forming the newly identified Chukchi Slope Current. This transport occurs at all times of year, channeling both summer and winter waters from the shelf to the Canada Basin. The model indicates that approximately 75% of this water was exposed to the mixed layer within the Chukchi Sea, while the remaining 25% was able to cross the shelf during the stratified summer before convection commences in late fall. We view the O(0.5)Sv of the Chukchi Slope Current as replacing Beaufort Gyre water that would have come from the east in the absence of the cross-topography flow in Barrow Canyon. The weak eastward flow on the Beaufort slope is also consistent with the local disruption of the Beaufort Gyre by the Barrow Canyon outflow. Using a combination of numerical models and field observations, we elucidate where and when waters of Pacific Ocean origin cross the shelf break and enter the interior of the Canada Basin. Most of these waters flow toward the west, forming the recently observed Chukchi Slope Current. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17563]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Guangdong Ocean Univ, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang, Peoples R China 2.Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA 3.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Japan Agcy Marine Earth Sci & Technol, Yokosuka, Kanagawa, Japan 6.Hohai Univ, Coll Oceanog, Nanjing, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kikuchi, Takashi,Spall, Michael A.,Pickart, Robert S.,et al. Transport of Pacific Water Into the Canada Basin and the Formation of the Chukchi Slope Current[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(10):7453, 7471. |
| APA | Kikuchi, Takashi.,Spall, Michael A..,Pickart, Robert S..,Li, Min.,Itoh, Motoyo.,...&Qi, Yiquan.(2018).Transport of Pacific Water Into the Canada Basin and the Formation of the Chukchi Slope Current.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(10),7453. |
| MLA | Kikuchi, Takashi,et al."Transport of Pacific Water Into the Canada Basin and the Formation of the Chukchi Slope Current".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.10(2018):7453. |
入库方式： OAI收割
来源：南海海洋研究所
浏览0
下载0
收藏0
其他版本
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。