Seasonal variation of atmospheric coupling with oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent
文献类型：CNKI期刊论文
| 作者 | Bowen Sun; Baofu Li; Jingyu Yan; Yuqi Zhou; Shuo Zhou |
| 发表日期 | 2022-10-15 |
| 出处 | Acta Oceanologica Sinica
 |
| 关键词 | atmospheric response on mesoscale eddy seasonal variation subtropical countercurrent sea surface temperature-wind coupling |
| 英文摘要 | This study investigated the seasonal variation in the atmospheric response to oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent(STCC) and its mechanism, based on satellite altimetric and reanalysis datasets. Although mesoscale eddy in the study area is more active in summer, the sea surface temperature(SST)anomaly associated with mesoscale eddies is more intense and dipolar in winter, which is largely due to the larger background SST gradient. Similarly, the impact of the oceanic eddy on sea surface wind speed and heat flux is strongest in winter, whereas its effect on precipitation rate is more significant in summer. The study revealed that the SST gradient in STCC could impact the atmosphere layer by up to 800 h Pa(900 h Pa) in boreal winter(summer) through the dominant vertical mixing mechanism. Moreover, the intensity of the SST gradient causes such seasonal variation in mesoscale air-sea coupling in the study region. In brief, a stronger(weaker)background SST gradient field in wintertime(summertime) leads to a larger(smaller) eddy-induced SST anomaly,thus differently impacting atmosphere instability and transitional kinetic energy flux over oceanic eddies, leading to seasonal variation in mesoscale air-sea coupling intensity. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | The Shandong Provincial Natural Science Foundation under contract No. ZR2021YQ28 ; the Provincial College Student Innovation Training Project under contract No. S202110446040 |
| 卷 | v.41期:10页:113-122 |
| 语种 | 英文; |
| 分类号 | P732 |
| ISSN号 | 0253-505X |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187301]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences 2.SchoolofGeographyandTourism,QufuNormalUniversity |
| 推荐引用方式 GB/T 7714 | Bowen Sun,Baofu Li,Jingyu Yan,et al. Seasonal variation of atmospheric coupling with oceanic mesoscale eddies in the North Pacific Subtropical Countercurrent. 2022. |
入库方式： OAI收割
来源：海洋研究所
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