Numerical study of the cross-shore range and the intensity of the Nearshore Kuroshio Branch Current(NKBC)
文献类型：CNKI期刊论文
| 作者 | Jie YAN; Yijun HOU; Peng QI ; Fang HU
|
| 发表日期 | 2022-01-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | East China Sea Nearshore Kuroshio Branch Current(NKBC) Regional Ocean Model System (ROMS) ocean modeling |
| 英文摘要 | Temperature and salinity data, obtained by two snapshot surveys during 19–20 May 2019 and 12–25 September 2019 across the East China Sea(ECS) shelf, revealed that the Kuroshio intrusion to the north of 28°N comprised the Nearshore Kuroshio Branch Current(NKBC) and the Of fshore Kuroshio Branch Current(OKBC) at the bottom of the ECS during spring 2019, and that the NKBC was weak during autumn 2019. The Regional Ocean Model System was used to reproduce the distribution of water masses and the current structure over the continental shelf of the ECS during 2019. Analyses of the momentum balances indicated that the cross-shore range and the intensity of the NKBC were determined by the combination of the geostrophic fl ow and bottom Ekman current. In comparison with that in May 2019, a weakened shoreward bottom Ekman current and an increased of fshoreward geostrophic fl ow caused the disappearance of cross-shore range of the NKBC in September 2019. Meanwhile, a diminished northeastward alongshore geostrophic fl ow in September 2019 also weakened the intensity of the NKBC. Sensitivity experiments indicated that a strong southwestward wind can push the western(eastern) boundary of the NKBC further of fshoreward(shoreward) by increasing(decreasing) the of fshore geostrophic fl ow(bottom Ekman current).A weak Taiwan Warm Current(TWC) can move the eastern boundary of the NKBC shoreward by decreasing the onshore bottom Ekman current. A weak Kuroshio Current(KC) can move the eastern boundary of the NKBC shoreward by increasing the of fshoreward geostrophic fl ow. Furthermore, a strong(weak)southwestward wind, weak(strong) TWC, and strong(weak) KC can diminish(enhance) the intensity of the NKBC. Of the three factors, the wind plays the major role in infl uencing the NKBC. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (Nos. 41630967, 41776020) |
| 卷 | v.40期:01页:40-57 |
| 语种 | 英文; |
| 分类号 | P731.27 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187526]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CASKeyLaboratoryofOceanCirculationandWaves,Instituteofoceanology,ChineseAcademyofSciences 2.CollegeofEarthandPlanetarySciences,UniversityofChineseAcademyofSciences 3.CenterforOceanMega-Science,ChineseAcademyofSciences 4.LaboratoryforOceanandClimateDynamics,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) |
| 推荐引用方式 GB/T 7714 | Jie YAN,Yijun HOU,Peng QI,et al. Numerical study of the cross-shore range and the intensity of the Nearshore Kuroshio Branch Current(NKBC). 2022. |
入库方式： OAI收割
来源：海洋研究所
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