IOCAS-IR  > 海洋环流与波动重点实验室
An improved ENSO simulation by representing chlorophyll-induced climate feedback in the NCAR Community Earth System Model
Kang, Xianbiao1; Zhang, Rong-Hua2,3,4; Gao, Chuan2,3,4; Zhu, Jieshun5
2017-12-07
Source PublicationSCIENTIFIC REPORTS
Volume7
SubtypeArticle
AbstractThe El Nio-Southern oscillation (ENSO) simulated in the Community Earth System Model of the National Center for Atmospheric Research (NCAR CESM) is much stronger than in reality. Here, satellite data are used to derive a statistical relationship between interannual variations in oceanic chlorophyll (CHL) and sea surface temperature (SST), which is then incorporated into the CESM to represent oceanic chlorophyll -induced climate feedback in the tropical Pacific. Numerical runs with and without the feedback (referred to as feedback and non-feedback runs) are performed and compared with each other. The ENSO amplitude simulated in the feedback run is more accurate than that in the non-feedback run; quantitatively, the Nino3 SST index is reduced by 35% when the feedback is included. The underlying processes are analyzed and the results show that interannual CHL anomalies exert a systematic modulating effect on the solar radiation penetrating into the subsurface layers, which induces differential heating in the upper ocean that affects vertical mixing and thus SST. The statistical modeling approach proposed in this work offers an effective and economical way for improving climate simulations.
DOI10.1038/s41598-017-17390-2
Indexed BySCI
Language英语
WOS IDWOS:000417353600017
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/154325
Collection海洋环流与波动重点实验室
Affiliation1.Civil Aviat Flight Univ China, Guanghan 618307, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Univ Maryland, ESSIC, College Pk, MD 20740 USA
Recommended Citation
GB/T 7714
Kang, Xianbiao,Zhang, Rong-Hua,Gao, Chuan,et al. An improved ENSO simulation by representing chlorophyll-induced climate feedback in the NCAR Community Earth System Model[J]. SCIENTIFIC REPORTS,2017,7.
APA Kang, Xianbiao,Zhang, Rong-Hua,Gao, Chuan,&Zhu, Jieshun.(2017).An improved ENSO simulation by representing chlorophyll-induced climate feedback in the NCAR Community Earth System Model.SCIENTIFIC REPORTS,7.
MLA Kang, Xianbiao,et al."An improved ENSO simulation by representing chlorophyll-induced climate feedback in the NCAR Community Earth System Model".SCIENTIFIC REPORTS 7(2017).
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