Bio-optical properties of adjacent cyclonic and anticyclonic eddies in the central and western South China Sea during the summer
文献类型：期刊论文
| 作者 | Xiao, Yanfang2,3; Zhuang, Zhanpeng2; Xin, Ming2; Cui, Tingwei1,4,5; Liu, Rongjie2,3; Ma, Yi2,3; Liu, Hanyang2,3; Wang, Dingqi2; Xu, Tengfei2; Chen, Lei6,7 |
| 刊名 | PROGRESS IN OCEANOGRAPHY
 |
| 出版日期 | 2025-10-01 |
| 卷号 | 238页码:13 |
| 关键词 | Bio-optical property Mesoscale eddy Submesoscale process Cross-shelf transport Cross-isopycnal mixing |
| ISSN号 | 0079-6611 |
| DOI | 10.1016/j.pocean.2025.103547 |
| 通讯作者 | Xu, Tengfei() ; Chen, Lei() |
| 英文摘要 | The central-western South China Sea is a typical region characterized by active mesoscale and submesoscale eddies, which play a crucial role in regulating the vertical distribution of light availability and primary productivity in the water column. This study analyzes the bio-optical properties of adjacent cyclonic (CE1) and anticyclonic (AE1) eddies in this region using satellite and in-situ observations from June 2024, focusing on underlying physical mechanisms. Results show that surface chlorophyll-a (Chl-a), particulate backscattering coefficient (b(bp)(440 nm)), and absorption coefficient due to colored dissolved and detrital organic matter (a(dg)(440 nm)) are significantly higher in the CE1 (0.083 +/- 0.037 mg/m(3), 1.38 x 10(-3) +/- 1.28 x 10(-3) m(-1), and 5.93 x 10(-3) +/- 1.46 x 10(-3)m(-1)) than in AE1 (0.14 +/- 0.013 mg/m(3), 1.46 x 10(-3) +/- 1.49 x 10(-4)m(-1) and 9.20 x 10(-3) +/- 9.21 x 10(-4)m(-1)), displaying a central-low, edge-high spatial pattern driven by the Vietnam Offshore Current (VOC). AE1 exhibits minimal spatial variation in surface bio-optical properties. Subsurface Chlorophyll Maximum Layer (SCML) depths follow the order: AE1 (99 m) > surrounding waters (86 m) > CE1 (75 m), while the highest SCML intensity is found in surrounding waters (0.427 +/- 0.069 mg/m(3)), followed by AE1 (0.409 +/- 0.095 mg/m(3)) and CE1 (0.382 +/- 0.118 mg/m(3)). a(dg) increases with depth, showing minor variations in both eddies, while b(bp) peaks induced by phytoplankton occur similar to 20 m shallower than Chl-a. A distinct scattering layer at 150-200 m, dominated by non-algal particles and associated with the cross-shelf transport driven by submesoscale filaments is consistently observed at the edge of CE1. Additionally, strong submesoscale fronts at CE1-AE1 boundary promote cross-isopycnal mixing, significantly influencing the vertical distribution of bio-optical properties. |
| WOS关键词 | INTERMEDIATE NEPHELOID LAYERS ; MESOSCALE EDDIES ; VERTICAL MIGRATION ; OCEAN EDDIES ; CHLOROPHYLL ; PHYTOPLANKTON ; SATELLITE ; VARIABILITY ; MATTER ; EDDY |
| 资助项目 | National Key Research and Development Program of China[2023YFC3107604] ; Shared Voyage Program 2023: Major Scientific Expedition on Multiscale Oceanic Eddy Processes and Their Ecological-Climate Effects[42349584] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001560236000001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203212]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Xu, Tengfei; Chen, Lei |
| 作者单位 | 1.Minist Educ, Key Lab Trop Atmosphere Ocean Syst, Zhuhai 519082, Peoples R China 2.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China 3.Minist Nat Resources, Technol Innovat Ctr Ocean Telemetry, Qingdao 266061, Peoples R China 4.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519082, Peoples R China 5.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Qingdao 266000, Peoples R China 7.China Univ Petr East China, Qingdao 266580, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Yanfang,Zhuang, Zhanpeng,Xin, Ming,et al. Bio-optical properties of adjacent cyclonic and anticyclonic eddies in the central and western South China Sea during the summer[J]. PROGRESS IN OCEANOGRAPHY,2025,238:13. |
| APA | Xiao, Yanfang.,Zhuang, Zhanpeng.,Xin, Ming.,Cui, Tingwei.,Liu, Rongjie.,...&Chen, Lei.(2025).Bio-optical properties of adjacent cyclonic and anticyclonic eddies in the central and western South China Sea during the summer.PROGRESS IN OCEANOGRAPHY,238,13. |
| MLA | Xiao, Yanfang,et al."Bio-optical properties of adjacent cyclonic and anticyclonic eddies in the central and western South China Sea during the summer".PROGRESS IN OCEANOGRAPHY 238(2025):13. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。