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Research on Cold Core Eddy Change and Phytoplankton Bloom Induced by Typhoons: Case Studies in the South China Sea
Shang, Xiao-dong; Zhu, Hai-bin; Chen, Gui-ying; Xu, Chi; Yang, Qi; zhuhb04@126.com; gychen@scsio.ac.cn
2015
Source PublicationADVANCES IN METEOROLOGY
Pages340432-
Subtype1687-9309
AbstractThe effects of 8 typhoons which passed by coldcore eddy (CCE) areas in the South China Sea (SCS) from 1997 to 2009 were observed and evaluated. The changes in the preexisting CCE acted upon by typhoons were described by eddy kinetic energy (EKE) and eddy available gravitational potential energy (EAGPE). The mechanical energy of CCE was estimated from a two-layer reduced gravity model. Comparing with the scenario that typhoon passes by the region without CCEs, the preexisting CCE area plays an important role in the increase of chlorophyll-a (chl-a) concentration in the CCEs impacted by the typhoons. The preexisting chl-a in CCE is about 25%similar to 45% (8%similar to 25%) of postexisting chl-a in CCE for higher (slower) transit speed typhoons. If the EAGPE of CCE increases greatly after typhoon passing by with slow transit speed, so does the chl-a in the CCE area. The EKE (EAGPE) changes of the preexisting CCE are in the order of O(10(14)similar to 10(15) J). EKE and EAGPE of CCE are dominantly enhanced by typhoon with slow transit speed (<3m/s) and the posttyphoon EAGPE is always larger than posttyphoon EKE for 8 cases. The maximum EAGPE change of the preexisting CCE reaches 5.11 x 10(15) J, which was induced by typhoon Hagibis.
Department[Shang, Xiao-dong; Chen, Gui-ying; Xu, Chi] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Zhu, Hai-bin] Ningxia Meteorol Observ, Yinchuan 750002, Peoples R China; [Yang, Qi] Shanghai Marine Observ, Shanghai 201300, Peoples R China ; LTO
Subject AreaMeteorology & Atmospheric Sciences
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15122
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorzhuhb04@126.com; gychen@scsio.ac.cn
Recommended Citation
GB/T 7714
Shang, Xiao-dong,Zhu, Hai-bin,Chen, Gui-ying,et al. Research on Cold Core Eddy Change and Phytoplankton Bloom Induced by Typhoons: Case Studies in the South China Sea[J]. ADVANCES IN METEOROLOGY,2015:340432-.
APA Shang, Xiao-dong.,Zhu, Hai-bin.,Chen, Gui-ying.,Xu, Chi.,Yang, Qi.,...&gychen@scsio.ac.cn.(2015).Research on Cold Core Eddy Change and Phytoplankton Bloom Induced by Typhoons: Case Studies in the South China Sea.ADVANCES IN METEOROLOGY,340432-.
MLA Shang, Xiao-dong,et al."Research on Cold Core Eddy Change and Phytoplankton Bloom Induced by Typhoons: Case Studies in the South China Sea".ADVANCES IN METEOROLOGY (2015):340432-.
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