IOCAS-IR  > 海洋环流与波动重点实验室
Near-inertial oscillations in seasonal highly stratified shallow water
Song, Dehai1,2; Gao, Guandong2,3,4; Xia, Yingying5; Ren, Zhaopeng6; Liu, Junliang1,2,7; Bao, Xianwen1,2,7; Yin, Baoshu2,3,4,8
2021-09-05
Source PublicationESTUARINE COASTAL AND SHELF SCIENCE
ISSN0272-7714
Volume258Pages:14
Corresponding AuthorGao, Guandong(guandonggao@qdio.ac.cn)
AbstractThe Yellow Sea (YS) is highly stratified seasonally due to the presence of the bottom cold water (BCW), also called the YS Cold Water Mass (YSCWM). Intermittent measurements from June 2009 to August 2014 show that the near-inertial oscillation (NIO) can be excited by synoptic weather systems during the presence of the YSCWM between March and October. The magnitude of the NIOs depends on both the wind work and the water stratification. Thus, extreme wind events, such as tropical cyclones, destratify the shallow water and are unfavorable for NIOs. In general, the NIO induced by individual synoptic system is weak, but the event occurred from 6 to 22 July 2009 excited by four extratropical cyclones can result in a near-inertial current speed of 0.3 ms(-1). The average wind work during this event was 1.32 x 10(-3) Wm(-2), and estimates of 42.67 MW energy transferred from wind into the YS during this event. However, only 6.1%similar to 8.4% of the wind work can be transited into the BCW interior. Budget analysis indicates most energy is dissipated to mix the highly stratified water rather than damped by the bottom friction. The NIO frequency blueshift in the vertical also indicates higher energy dissipation between different layers. The decline of the YSCWM weakens the vertical stratification and thus the growth of NIOs. The calculation of wind work depends on the computation of wind drag coefficient and the conversion from wind measured height to 10 m above surface. In general, there is about 10% difference on wind work by using different methods.
KeywordNear-inertial oscillation Yellow sea cold water mass Shallow water Wind work Extratropical cyclone
DOI10.1016/j.ecss.2021.107445
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41876088] ; National Natural Science Foundation of China[42006004] ; National Natural Science Foundation of China[U1706215] ; National Natural Science Foundation of China[U1806227] ; Shandong Provincial Natural Science Foundation, China[ZR2019MD010] ; Shandong Provincial Natural Science Foundation, China[ZR2019BD016]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectMarine & Freshwater Biology ; Oceanography
WOS IDWOS:000704391100001
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/176637
Collection海洋环流与波动重点实验室
Corresponding AuthorGao, Guandong
Affiliation1.Ocean Univ China, Minist Educ, Key Lab Phys Oceanog, Qingdao 266000, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266000, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266000, Peoples R China
4.Chinese Acad Sci, Ctr Mega Sci, Qingdao 266071, Peoples R China
5.Natl Marine Data & Informat Serv, Tianjin 300171, Peoples R China
6.Meteorol Bur Qingdao, Qingdao 266003, Peoples R China
7.Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China
8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Corresponding Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Song, Dehai,Gao, Guandong,Xia, Yingying,et al. Near-inertial oscillations in seasonal highly stratified shallow water[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2021,258:14.
APA Song, Dehai.,Gao, Guandong.,Xia, Yingying.,Ren, Zhaopeng.,Liu, Junliang.,...&Yin, Baoshu.(2021).Near-inertial oscillations in seasonal highly stratified shallow water.ESTUARINE COASTAL AND SHELF SCIENCE,258,14.
MLA Song, Dehai,et al."Near-inertial oscillations in seasonal highly stratified shallow water".ESTUARINE COASTAL AND SHELF SCIENCE 258(2021):14.
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