IOCAS-IR  > 海洋环流与波动重点实验室
Salinity interdecadal variability in the western equatorial Pacific and its effects during 1950-2018
Zhang, Rong-Hua1,2,3,4,5; Zhou, Guanghui2,3,4; Zhi, Hai6; Gao, Chuan2,3,4,5; Wang, Hongna2,3,5; Feng, Licheng7
2022-08-01
发表期刊CLIMATE DYNAMICS
ISSN0930-7575
页码23
通讯作者Zhang, Rong-Hua(rzhang@qdio.ac.cn)
摘要Ocean reanalysis products are used to examine salinity variability and its relationships with temperature in the western equatorial Pacific during 1950-2018. An ensemble empirical mode decomposition (EEMD) method is adopted to separate salinity and temperature signals at different time scales; a focus is placed on interdecadal component in this study. Pronounced interdecadal variations in salinity are seen in the region, which exhibits persistent and transitional phases in association with temperature. A surface freshening is accompanied by a surface warming during the 1980s and 1990s, but saltening and cooling in the 2000s, with interdecadal shifts occurring around in the late 1970s, late 1990s, and during 2016-2018, respectively. Determined by anomaly signs of temperature and salinity, their combined effects can be density-compensated or density-uncompensated, correspondingly acting to produce density variability that is suppressed or enhanced, respectively. The temperature and salinity effects are phase- and depth-dependent. In the subsurface layers at 200 m, where salinity and temperature anomalies tend to be nearly of the same sign during interdecadal evolution, their effects are mostly density-compensated. The situation is more complicated in the surface layer, where variations in sea surface salinity (SSS) and sea surface temperature (SST) exhibit different signs during interdecadal evolution. SST and SSS tend to be of opposite sign during the persistent phases with their effects being density-uncompensated; but they can be of the same sign during the transitional periods and the corresponding changes in SST and SSS undergo density-compensated relationships. Examples are given for the relationships among these fields which exhibit phase differences in sign transitions in the late 1990s; salinity effects are seen to cause a delay in phase transition of density anomalies. Furthermore, the relative contributions to interdecadal variabilities of density and stratification are quantified. The consequences of interdecadal salinity variability are also discussed in terms of their effects on local SST.
关键词The western equatorial Pacific Salinity interdecadal variability Compensated and uncompensated effects Relative contributions EEMD method
DOI10.1007/s00382-022-06417-8
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China (NSFC)[42030410] ; Startup Foundation for Introducing Talent of NUIST ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDA19060102] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDB42000000] ; NSFC[42176032] ; Strategic Priority Research Program of the CAS[XDB40000000] ; Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology(Qingdao)[2022QNLM010301-3] ; Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology(Qingdao)[2022QNLM010301-4]
WOS研究方向Meteorology & Atmospheric Sciences
WOS类目Meteorology & Atmospheric Sciences
WOS记录号WOS:000834727500002
出版者SPRINGER
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/179861
专题海洋环流与波动重点实验室
通讯作者Zhang, Rong-Hua
作者单位1.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Peoples R China
2.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing 10029, Peoples R China
5.Pilot Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China
6.Nanjing Univ Informat Sci & Technol, Sch Atmospher Sci, Nanjing 210044, Peoples R China
7.Minist Nat Resources, Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China
第一作者单位海洋环流与波动重点实验室;  中国科学院海洋大科学研究中心
通讯作者单位海洋环流与波动重点实验室;  中国科学院海洋大科学研究中心
推荐引用方式
GB/T 7714
Zhang, Rong-Hua,Zhou, Guanghui,Zhi, Hai,et al. Salinity interdecadal variability in the western equatorial Pacific and its effects during 1950-2018[J]. CLIMATE DYNAMICS,2022:23.
APA Zhang, Rong-Hua,Zhou, Guanghui,Zhi, Hai,Gao, Chuan,Wang, Hongna,&Feng, Licheng.(2022).Salinity interdecadal variability in the western equatorial Pacific and its effects during 1950-2018.CLIMATE DYNAMICS,23.
MLA Zhang, Rong-Hua,et al."Salinity interdecadal variability in the western equatorial Pacific and its effects during 1950-2018".CLIMATE DYNAMICS (2022):23.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, Rong-Hua]的文章
[Zhou, Guanghui]的文章
[Zhi, Hai]的文章
百度学术
百度学术中相似的文章
[Zhang, Rong-Hua]的文章
[Zhou, Guanghui]的文章
[Zhi, Hai]的文章
必应学术
必应学术中相似的文章
[Zhang, Rong-Hua]的文章
[Zhou, Guanghui]的文章
[Zhi, Hai]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。