| LI Hongmei,SHI Xiaoyong,WANG Hao,HAN Xiurong. 2014. An estimation of nutrient fluxes to the East China Sea continental shelf from the Taiwan Strait and Kuroshio subsurface waters in summer. Acta Oceanologica Sinica, 33(11):1－10 |
| An estimation of nutrient fluxes to the East China Sea continental shelf from the Taiwan Strait and Kuroshio subsurface waters in summer |
| 夏季台湾海峡水及黑潮次表层涌升水向东海近陆架区营养盐输送通量的估算 |
| Received:November 18, 2013 Revised:May 26, 2014 |
| DOI：10.1007/s13131-014-0550-2 |
| Key words:nutrient flux Taiwan Warm Current summer East China Sea |
| 中文关键词: 营养盐 通量 台湾暖流 夏季 东海 |
| 基金项目: |
| Author Name | Affiliation | E-mail | | LI Hongmei | College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China | | | SHI Xiaoyong | College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
National Marine Hazard Mitigation Service, Beijing 100194, China | shixy@ouc.edu.cn | | WANG Hao | Fujian Marine Environment and Fishery Resource Monitoring Center, Fuzhou 350003, China | | | HAN Xiurong | College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China | |
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| Abstract: |
| According to historical mean ocean current data through the field observations of the Taiwan Ocean Research Institute during 1991-2005 and survey data of nutrients on the continental shelf of the East China Sea (ECS) in the summer of 2006, nutrient fluxes from the Taiwan Strait and Kuroshio subsurface waters are estimated using a grid interpolation method, which both are the sources of the Taiwan Warm Current. The nutrient fluxes of the two water masses are also compared. The results show that phosphate (PO4-P), silicate (SiO3-Si) and nitrate (NO3-N) fluxes to the ECS continental shelf from the Kuroshio upwelling water are slightly higher than those from the Taiwan Strait water in the summer of 2006. In contrast, owing to its lower velocity, the nutrient flux density (i.e., nutrient fluxes divided by the area of the specific section) of the Kuroshio subsurface water is lower than that of the Taiwan Strait water. In addition, the Taiwan Warm Current deep water, which is mainly constituted by the Kuroshio subsurface water, might directly reach the areas of high-frequency harmful alga blooms in the ECS. |
| 中文摘要: |
| 依据海流平均资料及2006年夏季对东海近陆架区营养盐数据的现场调查, 对原始的营养盐及海流数据进行网格差分处理后, 估算了台湾暖流源地区的两种水团－台湾海峡水和黑潮次表层涌升水向东海内陆架区的营养盐输送通量, 并对两种来源对台湾暖流的营养盐输入贡献进行比较。结果表明, 在夏季, 黑潮涌升水对东海陆架区的磷酸盐、硅酸盐及硝酸盐输入通量较台湾海峡水略高。而由于黑潮涌升水流速较慢, 其通量密度反而不及台湾海峡水。但主要由黑潮次表层水组成的台湾暖流深层水可直接到达东海赤潮高发区, 因此黑潮表层水对赤潮高发区的贡献仍较台湾海峡水高。 |
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