Climatological seasonal variation of the upper ocean salinity
文献类型：期刊论文
| 作者 | Liu, Yuanxin1,2,3; Cheng, Lijing3,4,5; Pan, Yuying3,4,5; Abraham, John6; Zhang, Bin4,7; Zhu, Jiang3,4,5; Song, Junqiang1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
 |
| 出版日期 | 2021-11-13 |
| 页码 | 22 |
| ISSN号 | 0899-8418 |
| 关键词 | evaporation precipitation salinity seasonal cycle upper ocean |
| DOI | 10.1002/joc.7428 |
| 通讯作者 | Cheng, Lijing(chenglij@mail.iap.ac.cn) |
| 英文摘要 | Salinity plays a vital role in regulating ocean density, stratification and circulation, and is an indicator of the coupling between the ocean, atmosphere and land through the water cycle. This study provides a spatially complete look of the seasonal variation of the upper 2,000 m ocean salinity from regional to global scales, and assesses the robustness of the signals. The potential drivers of this variation are also investigated by comparing salinity changes with surface precipitation and evaporation. New observations show a robust seasonal variation in global ocean salinity from the surface down to 350 m depth that exceeds the observational uncertainty, and in some regions, the variation can be detected at 2,000 m. Regions with a seasonal variation of sea surface salinity (SSS) larger than 0.6 g.kg(-1) include the Northwest Pacific, Northwest Atlantic, tropical oceans and the northeast Indian Ocean. From 5 degrees N to 30 degrees N (20 degrees N to 5 degrees N), the sea surface is fresher (saltier) in the first half of the year and gets saltier (fresher) in the second half of the year, because of surface precipitation and evaporation changes associated with monsoons and the seasonal changes in atmospheric circulation. In the middle and high latitudes, the evaporation-minus-precipitation is mismatched with local salinity changes, suggesting that river runoff, sea ice change and ocean dynamics have a controlling role. On zonal average, the subsurface (50-160 m) generally shows salinity anomalies with an opposite sign to those of the near surface regions (0-50 m), indicating the importance of ocean dynamics. There are notable differences in global SSS variation between Argo-only products and datasets that merge all observations, revealing the insufficiency of Argo network in shallow oceans and polar regions. To overcome this, an integrated ocean observational network is strongly recommended. |
| 资助项目 | Key Deployment Project of Centre for Ocean Mega-Research of Science, CAS[COMS2019Q01] ; National Key R&D Program of China[2017YFA0603202] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000718013200001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/177224]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Cheng, Lijing |
| 作者单位 | 1.Natl Univ Def Technol, Coll Meteorol & Oceanog, Changsha, Peoples R China 2.Natl Univ Def Technol, Coll Comp Sci & Technol, Changsha, Peoples R China 3.Chinese Acad Sci, Int Ctr Climate & Environm Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 5.Univ Chinese Acad Sci, Beijing, Peoples R China 6.Univ St Thomas, Sch Engn, St Paul, MN USA 7.Chinese Acad Sci, Marine Sci Data Ctr, Inst Oceanol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yuanxin,Cheng, Lijing,Pan, Yuying,et al. Climatological seasonal variation of the upper ocean salinity[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2021:22. |
| APA | Liu, Yuanxin.,Cheng, Lijing.,Pan, Yuying.,Abraham, John.,Zhang, Bin.,...&Song, Junqiang.(2021).Climatological seasonal variation of the upper ocean salinity.INTERNATIONAL JOURNAL OF CLIMATOLOGY,22. |
| MLA | Liu, Yuanxin,et al."Climatological seasonal variation of the upper ocean salinity".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2021):22. |
入库方式： OAI收割
来源：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。