SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Study of dissolved oxygen responses to tropical cyclones in the Bay of Bengal based on Argo and satellite observations
Xu, Huabing2; Tang, Danling2; Sheng, Jinyu1; Liu, Yupeng2; Sui, Yi1
2019
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume659Pages:912
AbstractEffects of tropical cyclones (TCs) on dissolved oxygen (DO) in subsurface waters (20-200 m) over the Oxygen Minimum Zones (OMZs) in the Bay of Bengal (BoB) are examined based on Argo and satellite data. Five TCs (Hudhud, Five, Vardah, Maarutha and Mora) during 2013-2018 are considered. Analyses reveal three types of DO temporal variability caused by the storm-induced mixing and upwelling. The first type features temporal DO increases in subsurface waters (37-70 m) caused mainly by intense vertical mixing and downwelling. The second type features DO reductions in subsurface waters after the storms attributed to storm-induced upwelling. The third type features temporal DO increases at depths between 40 and 79 m and decreases at depths between 80 and 150 m due to the combined effect of strong vertical mixing and upwelling. These three types of DO responses can occur in different areas, depending on TC intensity, translational speed and Ekman pumping. The temporal DO variability is also influenced by the shallow oxycline (58.3 +/- 16.7 m), mesoscale eddies and biochemical processes. Due to TC intensification, a pre-existing oceanic cyclonic eddy produced a large upwelling and induced a long time of DO decrease in the subsurface layer. This study suggests three different types of DO responses along the TC track in the OMZ, which is useful to evaluate the influence of TCs on the OMZ. (c) 2018 The Authors. Published by Elsevier B.V.
DepartmentLTO
KeywordDO Tropical cyclone Mixing Upwelling Mesoscale eddy Oxygen Minimum Zone
DOI10.1016/j.scitotenv.2018.12.384
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Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17747
Collection热带海洋环境国家重点实验室(LTO)
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangdong Key Lab Ocean Remote Sensing, Guangzhou, Guangdong, Peoples R China
2.Dalhousie Univ, Dept Oceanog, Halifax, NS, Canada
3.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Xu, Huabing,Tang, Danling,Sheng, Jinyu,et al. Study of dissolved oxygen responses to tropical cyclones in the Bay of Bengal based on Argo and satellite observations[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,659:912, 922.
APA Xu, Huabing,Tang, Danling,Sheng, Jinyu,Liu, Yupeng,&Sui, Yi.(2019).Study of dissolved oxygen responses to tropical cyclones in the Bay of Bengal based on Argo and satellite observations.SCIENCE OF THE TOTAL ENVIRONMENT,659,912.
MLA Xu, Huabing,et al."Study of dissolved oxygen responses to tropical cyclones in the Bay of Bengal based on Argo and satellite observations".SCIENCE OF THE TOTAL ENVIRONMENT 659(2019):912.
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