IOCAS-IR  > 海洋环流与波动重点实验室
Chlorophyll variability induced by mesoscale eddies in the southeastern tropical Indian Ocean
Yang, Guang1,2,7; Zhao, Xia3,4,5; Li, Yuanlong3,4,5; Liu, Lin1,2,7; Wang, Fan3,4,5; Yu, Weidong2,6
2019-11-01
Source PublicationJOURNAL OF MARINE SYSTEMS
ISSN0924-7963
Volume199Pages:10
Corresponding AuthorYu, Weidong(wdyu@fio.org.cn)
AbstractHigh sea surface chlorophyll-a concentrations (CHL) and intensive mesoscale eddy activity coexist near the coast of Java in the southeastern tropical Indian Ocean (SETIO) in upwelling season (July-November). In this study, the modulation effects of mesoscale eddies on the local CHL variability are investigated by analyzing remote sensed as well as in situ observations together with ocean and atmospheric reanalysis data from 1997 to 2010. Within 400 km off the coast, the mean CHL inside cyclonic eddies (CEs) is 2-3-fold higher than background, and is obviously suppressed inside anticyclonic eddies (AEs). During upwelling season, more and stronger CEs are generated, which significantly contributes to the high mean CHL levels. A composite analysis revealed that CEs induce CHL anomalies through both vertical upwelling that elevates nutrient-rich water from the subsurface to the surface and horizontal advection that carries high-CHL water from the coast to the offshore area. These effects are particularly visible during the upwelling season, when advection of the background high CHL favors large eddy modulation on the CHL. The eddy-induced CHL anomalies also exhibit prominent interannual variability, which has a close relationship with the El Nino-Southern Oscillation and the Indian Ocean Dipole (IOD). The wind forcing of El Nino and positive IOD events can enhance the vertical shear of the background currents and favor energetic CEs off Java coast, which contributes to the interannual variability of the local CHL. These results underscore the fundamental role played by mesoscale eddies in the ocean dynamics, environment, and bio-system of this region.
KeywordMesoscale eddies Chlorophyll-a Southeastern tropical Indian Ocean Upwelling season
DOI10.1016/j.jmarsys.2019.103209
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFC1405100] ; Basic Scientific Fund for National Public Research Institutes of China[2017S02] ; Indian Ocean Ninety-east Ridge Ecosystem and Marine Environment Monitoring and Protection ; China Ocean Mineral Resources RD Association[DY135E2-4] ; Global Change and Air-Sea Interaction Program[GASI-IPOVAI03] ; Global Change and Air-Sea Interaction Program[GASI-IPOVAI-02] ; Global Change and Air-Sea Interaction Program[GASI-02-IND-STSaut] ; Global Change and Air-Sea Interaction Program[GASI-02-IND-STSwin] ; Natural Science Foundation of China (NSFC)[41406028] ; Natural Science Foundation of China (NSFC)[41475084] ; Natural Science Foundation of China (NSFC)[41876028] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1406404] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1606405] ; State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences[LT01803]
WOS Research AreaGeology ; Marine & Freshwater Biology ; Oceanography
WOS SubjectGeosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography
WOS IDWOS:000486133400002
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/162829
Collection海洋环流与波动重点实验室
Corresponding AuthorYu, Weidong
Affiliation1.Minist Nat Resources, Inst Oceanog 1, Ctr Ocean & Climate Res, Qingdao 266061, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266061, Shandong, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Shandong, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266071, Shandong, Peoples R China
5.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
6.Sun Yat Sen Univ, Sch Atmospher Sci, 2 Daxue Rd, Zhuhai 519082, Peoples R China
7.Minsitry Nat Resources, Key Lab Marine Sci & Numer Modeling, Qingdao 266061, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Yang, Guang,Zhao, Xia,Li, Yuanlong,et al. Chlorophyll variability induced by mesoscale eddies in the southeastern tropical Indian Ocean[J]. JOURNAL OF MARINE SYSTEMS,2019,199:10.
APA Yang, Guang,Zhao, Xia,Li, Yuanlong,Liu, Lin,Wang, Fan,&Yu, Weidong.(2019).Chlorophyll variability induced by mesoscale eddies in the southeastern tropical Indian Ocean.JOURNAL OF MARINE SYSTEMS,199,10.
MLA Yang, Guang,et al."Chlorophyll variability induced by mesoscale eddies in the southeastern tropical Indian Ocean".JOURNAL OF MARINE SYSTEMS 199(2019):10.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yang, Guang]'s Articles
[Zhao, Xia]'s Articles
[Li, Yuanlong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yang, Guang]'s Articles
[Zhao, Xia]'s Articles
[Li, Yuanlong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yang, Guang]'s Articles
[Zhao, Xia]'s Articles
[Li, Yuanlong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.