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Sea surface cooling in the Northern South China Sea observed using Chinese sea-wing underwater glider measurements
Qiu, Chunhua1,5; Mao, Huabin2; Yu, Jiancheng3; Xie, Qiang4; Wu, Jiaxue1,5; Lian, Shumin2; Liu, Qinyan2
2015-11-01
Source PublicationDEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
Volume105Pages:111-118
AbstractBased on 26 days of Chinese Sea-wing underwater glider measurements and satellite microwave data, we documented cooling of the upper mixed layer of the ocean in response to changes in the wind in the Northern South China Sea (NSCS) from September 19, 2014, to October 15, 2014. The Sea-wing underwater glider measured 177 profiles of temperature, salinity, and pressure within a 55 km x 55 km area, and reached a depth of 1000 m at a temporal resolution of 4 h. The study area experienced two cooling events, Cooling 1 and Cooling 11, according to their timing. During Cooling I, water temperature at 1-m depth (T-1) decreased by similar to 1.0 degrees C, and the corresponding satellite-derived surface winds increased locally by 4.2 m/s. During Cooling II, T-1 decreased sharply by 1.7 degrees C within a period of 4 days; sea surface winds increased by 7 m/s and covered the entire NSCS. The corresponding mixed layer depth (MLD) deepened sharply from 30 m to 60 m during Cooling II, and remained steady during Cooling I. We estimated temperature tendencies using a ML model. High resolution Sea-wing underwater glider measurements provided an estimation of MLD migration, allowing us to obtain the temporal entrainment rate of cool sub-thermocline water. Quantitative analysis confirmed that the entrainment rate and latent heat flux were the two major components that regulated cooling of the ML and that the Ekman advection and sensible heat flux were small. (C) 2015 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordSea Surface Cooling Sea-wing Underwater Glider Mixed Layer Depth Heat Budget
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.dsr.2015.08.009
Indexed BySCI
Language英语
WOS KeywordUPPER OCEAN RESPONSE ; MIXED-LAYER DEPTH ; INDIAN-OCEAN ; CIRCULATION
WOS SubjectOceanography
WOS IDWOS:000364349300009
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/890
Collection深海科学研究部_海洋环流观测与数值模拟研究室
Affiliation1.Sun Yat Sen Univ, Sch Marine Sci, Ctr Coastal Ocean Sci & Technol, Guangzhou 510275, Guangdong, Peoples R China
2.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Beijing 510301, Peoples R China
3.Chinese Acad Sci, Shenyang Inst Automat, State Key Lab Robot, Shenyang 110016, Peoples R China
4.Chinese Acad Sci, Sanya Inst Deep Sea Sci Engn, Beijing 572000, Peoples R China
5.Sun Yat Sen Univ, Sch Marine Sci, Guangdong Prov Key Lab Marine Resources & Coastal, Guangzhou 510275, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Qiu, Chunhua,Mao, Huabin,Yu, Jiancheng,et al. Sea surface cooling in the Northern South China Sea observed using Chinese sea-wing underwater glider measurements[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2015,105:111-118.
APA Qiu, Chunhua.,Mao, Huabin.,Yu, Jiancheng.,Xie, Qiang.,Wu, Jiaxue.,...&Liu, Qinyan.(2015).Sea surface cooling in the Northern South China Sea observed using Chinese sea-wing underwater glider measurements.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,105,111-118.
MLA Qiu, Chunhua,et al."Sea surface cooling in the Northern South China Sea observed using Chinese sea-wing underwater glider measurements".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 105(2015):111-118.
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