IOCAS-IR  > 海洋环流与波动重点实验室
Roles of different physical processes in upper ocean responses to Typhoon Rammasun (2008)-induced wind forcing
Pei, Yuhua1; Zhang, Rong-Hua2,3,4; Chen, Dake1
2019-04-01
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Volume62Issue:4Pages:684-692
Corresponding AuthorPei, Yuhua(yuhua.pei@sio.org.cn)
AbstractThis study investigates the roles of different physical processes in the oceanic response to tropical cyclones (TCs) in the Pacific, using an ocean general circulation model with several numerical experiments. A case study is focused on Typhoon Rammasun, which passed through the northwestern tropical Pacific in May 2008. TC-induced wind stress fields are extracted using a locally-weighted regression (Loess) method from a six-hourly Cross-Calibrated Multi-Platform satellite scatterometer wind product. By comparing model experiments with TC wind forcing being explicitly included or not, the effects of TC on the ocean are isolated in a clean way. The local oceanic response is characterized by a cooling in the surface layer that persists along the typhoon track as a cold wake, and a deepening of the mixed layer (ML). The TC-induced wind can affect the ocean through the momentum effects, the ML processes (the stirring effect on the ML depth), and heat flux (via wind speed), repectively. Analyses of numerical experiments with these different underlying processes explicitly represented or not indicate that vertical mixing and upwelling are dominant processes responsible for surface cooling, while the surface heat flux also plays a non-negligible role. Specifically, vertical mixing, upwelling and surface heat flux account for respectively similar to 53%, similar to 31% and similar to 16% of the sea surface temperature cooling. However, for the ML response, the vertical mixing and surface heat flux are dominant processes for the ML deepening, while the contribution from upwelling process is negligible. This study provides new insights into how TC-indcued wind forcing affects the ocean by isolating each different individual process in a clear way, which differs from previous direct heat budget analyses.
KeywordOcean response to typhoon Ocean modeling Vertical mixing The tropical Pacific
DOI10.1007/s11430-018-9313-8
Indexed BySCI
Language英语
Funding ProjectNASA Earth Science MEaSUREs DISCOVER Project ; National Natural Science Foundation of China[41706037] ; National Natural Science Foundation of China[41690120] ; National Natural Science Foundation of China[41690121] ; National Natural Science Foundation of China[41690122] ; National Natural Science Foundation of China[41621064] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-04] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-06] ; Chinese Academy of Sciences Strategic Priority Project ; Western Pacific Ocean System[XDA11020306] ; Western Pacific Ocean System[XDA11010104] ; Western Pacific Ocean System[XDA11010105]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000462228900007
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/154927
Collection海洋环流与波动重点实验室
Corresponding AuthorPei, Yuhua
Affiliation1.Minist Nat Resources, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Pei, Yuhua,Zhang, Rong-Hua,Chen, Dake. Roles of different physical processes in upper ocean responses to Typhoon Rammasun (2008)-induced wind forcing[J]. SCIENCE CHINA-EARTH SCIENCES,2019,62(4):684-692.
APA Pei, Yuhua,Zhang, Rong-Hua,&Chen, Dake.(2019).Roles of different physical processes in upper ocean responses to Typhoon Rammasun (2008)-induced wind forcing.SCIENCE CHINA-EARTH SCIENCES,62(4),684-692.
MLA Pei, Yuhua,et al."Roles of different physical processes in upper ocean responses to Typhoon Rammasun (2008)-induced wind forcing".SCIENCE CHINA-EARTH SCIENCES 62.4(2019):684-692.
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