Spatiotemporal distribution characteristics of particulate organic carbon in the Savu Sea and its controlling factors
文献类型：期刊论文
| 作者 | Song, Xinling1,2,3; Jia, Yijia1,2,3; Zhao, Meihan1,3; Fu, Yujie1,5; Wang, Zhenyan1,2,3,4 |
| 刊名 | GEO-MARINE LETTERS
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 45期号:4页码:16 |
| ISSN号 | 0276-0460 |
| DOI | 10.1007/s00367-025-00832-6 |
| 通讯作者 | Wang, Zhenyan(zywang@qdio.ac.cn) |
| 英文摘要 | The Savu Sea, a key region for bidirectional water exchange between the Indian and Pacific Oceans, is influenced by monsoons, oceanic processes and climatic events. Its complex dynamics and ecological importance make it a critical region for studying the multiscale spatiotemporal variations of particulate organic carbon (POC). However, POC in this region remains poorly studied. Based on remote sensing POC data and multi-source environmental variables (2003-2021), this study reveals the spatiotemporal distribution and controlling mechanisms of POC in the Savu Sea. The results show that POC concentrations exhibit spatiotemporal variability. Spatially, the upwelling-influenced eastern coast exhibits the highest POC variability, while the Ombai Strait, dominated by the Indonesian Throughflow, shows the lowest POC and weakest variability. Seasonally, POC peaks during the southeast monsoon (May-October) due to coastal upwelling and cyclonic eddies. During the westerly monsoon (November-April), warm surface water and increased precipitation suppress upwelling, reducing POC. On interannual timescales, positive POC anomalies during El Nino and + IOD events, and negative anomalies during La Nina and -IOD, are mediated by Rossby and Kelvin waves that shoal the thermocline, enhancing upwelling and nutrient supply for phytoplankton growth. These responses lag ENSO by 3-5 months and IOD by similar to 1 month. Notably, the positive POC anomaly in 2011 was particularly pronounced, triggered by strong cyclonic eddy that enhanced local nutrient supply and productivity. Overall, this study demonstrates how multiscale processes control POC variability in the Savu Sea, offering new insights into carbon cycling and climate feedbacks in tropical marginal seas. |
| WOS关键词 | INDONESIAN THROUGHFLOW ; SOUTHERN COAST ; VARIABILITY ; IMPACT |
| 资助项目 | the National Natural Science Foundation project[42176090] ; the IOCAS Independent Research Project[IOCASZZZX301] ; the Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42010203] |
| WOS研究方向 | Geology ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001628989000001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204330]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Wang, Zhenyan |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Coll Marine Sci, Beijing 100049, Peoples R China 4.Qingdao Marine Sci & Technol Ctr, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 5.Shandong Univ Sci & Technol, Qingdao 266590, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Xinling,Jia, Yijia,Zhao, Meihan,et al. Spatiotemporal distribution characteristics of particulate organic carbon in the Savu Sea and its controlling factors[J]. GEO-MARINE LETTERS,2025,45(4):16. |
| APA | Song, Xinling,Jia, Yijia,Zhao, Meihan,Fu, Yujie,&Wang, Zhenyan.(2025).Spatiotemporal distribution characteristics of particulate organic carbon in the Savu Sea and its controlling factors.GEO-MARINE LETTERS,45(4),16. |
| MLA | Song, Xinling,et al."Spatiotemporal distribution characteristics of particulate organic carbon in the Savu Sea and its controlling factors".GEO-MARINE LETTERS 45.4(2025):16. |
入库方式： OAI收割
来源：海洋研究所
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