Spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific Ocean
文献类型：CNKI期刊论文
| 作者 | LI YuanLong; WANG Fan ; TANG XiaoHui
|
| 发表日期 | 2013-03-25 |
| 出处 | Chinese Science Bulletin
 |
| 关键词 | thermohaline intrusions,northwestern tropical Pacific,water mass,ENSO,mixing |
| 英文摘要 | Using repeated hydrographic measurements at 137°E,spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific are investigated.Intrusions can be found in the main thermocline throughout the section,with their strength decreasing rapidly poleward.The strongest intrusions exist at the North Equatorial Countercurrent(NECC) where North/South Pacific thermocline water converges.These intrusions also exhibit temporal variations in strength which are closely associated with the meridional displacement of the NECC.Intrusion strength peaks in boreal winter when the NECC reaches its northernmost position of the year.At interannual time scale,intrusions tend to be weak(strong) during El Ni o(La Ni a) episodes.Variations in intrusion strength also lead to prominent fluctuation of lateral diffusivity K L and cross-front temperature flux F Θ.F Θ exhibits significant year-to-year changes which are well correlated with ENSO index,suggesting a possible role of intrusions in the low-latitude Pacific climate variability. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National Basic Research Program of China (2012CB417401) ; the National Natural Science Foundation of China (40890152) |
| 卷 | v.58期:09页:90-95 |
| 语种 | 英文; |
| 分类号 | P731.1 |
| ISSN号 | 1001-6538 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190918]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | LI YuanLong,WANG Fan,TANG XiaoHui. Spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific Ocean. 2013. |
入库方式： OAI收割
来源：海洋研究所
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