An irregularly shaped warm eddy observed by Chinese underwater gliders
文献类型：期刊论文
| 作者 | Mao Huabin1; Qiu Chunhua4; Wang Yanhui2; Yu Jiancheng3; Su Danyi; Lian Shumin1 |
| 刊名 | JOURNAL OF OCEANOGRAPHY
 |
| 出版日期 | 2019 |
| 卷号 | 75期号:2页码:139 |
| 关键词 | Irregular shape Warm eddy Chinese underwater glider Oceanic current Eddy-current interaction |
| ISSN号 | 0916-8370 |
| DOI | 10.1007/s10872-018-0490-0 |
| 英文摘要 | Mesoscale eddies are important for transporting oceanic energy and matter. We investigated the three-dimensional structure of an irregularly shaped warm eddy using three Chinese underwater gliders and satellite data during May 2015 in the northern South China Sea. The warm eddy lasted for 2 months, remained quasi-steady, and had a mean radius of similar to 70 km from May 10 to May 31. The heat contents observed along the two glider tracks differed markedly, by 2 x 10(9) J/m(2), which reflected an imbalance in the geostrophic and tangential velocity distributions of the eddy. The geostrophic/tangential velocity decreased/increased with depth within the warm eddy. The maximum tangential velocities calculated using the datasets from the two gliders were 0.8 and 0.25 m/s, respectively, confirming that the shape of the warm eddy was horizontally asymmetrical. Large errors can arise when the heat, energy, and matter transport for an irregularly shaped eddy are estimated using a regular circular model. We suggest that more intersecting glider tracks should be used to retrieve the three-dimensional eddy structure, and that those tracks should be better designed. The irregular shape of the warm eddy was likely induced by oceanic currents such as the wind-induced Ekman current. Further study is needed to elucidate the eddy-current interactions and the mechanisms thereof. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17746]  |
| 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.Sun Yat Sen Univ, Sch Marine Sci, Ctr Coastal Ocean Sci & Technol, Guangzhou 510275, Guangdong, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China 3.Tianjin Univ, Sch Mech Engn, Tianjin 300072, Peoples R China 4.Chinese Acad Sci, Shenyang Inst Automat, State Key Lab Robot, Shenyang 110016, Liaoning, Peoples R China 5.Sun Yat Sen Univ, Sch Marine Sci, Guangdong Prov Key Lab Marine Resources & Coastal, Guangzhou 510275, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao Huabin,Qiu Chunhua,Wang Yanhui,et al. An irregularly shaped warm eddy observed by Chinese underwater gliders[J]. JOURNAL OF OCEANOGRAPHY,2019,75(2):139, 148. |
| APA | Mao Huabin,Qiu Chunhua,Wang Yanhui,Yu Jiancheng,Su Danyi,&Lian Shumin.(2019).An irregularly shaped warm eddy observed by Chinese underwater gliders.JOURNAL OF OCEANOGRAPHY,75(2),139. |
| MLA | Mao Huabin,et al."An irregularly shaped warm eddy observed by Chinese underwater gliders".JOURNAL OF OCEANOGRAPHY 75.2(2019):139. |
入库方式： OAI收割
来源：南海海洋研究所
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