| 夏季南海西部叶绿素浓度高值带的年际变化 |
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| 引用本文： | 古园园,王静,储小青,程旭华.夏季南海西部叶绿素浓度高值带的年际变化[J].海洋学报,2017,39(6):1-9. |
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| 作者姓名： | 古园园 王静 储小青 程旭华 |
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| 作者单位： | 1.中山大学 地理科学与规划学院 广东省城市化与地理环境空间模拟重点实验室, 广东 广州 510275;中国科学院南海海洋研究所 热带海洋环境国家重点实验室, 广东 广州 510301 |
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| 基金项目： | 国家自然科学基金（41276108，41676010，41476011，41522601，41276025）；广州市珠江科技新星项目（201506010036）。 |
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| 摘 要： | 基于1998-2013年SeaWiFS和MODIS传感器的叶绿素浓度资料，本文分析了夏季南海西部叶绿素浓度高值带的年际变化规律。夏季，叶绿素及营养盐在海流的作用下离岸输送，从而在南海西部形成叶绿素浓度高值带，其分布与东向急流的流向一致。分析结果显示，高值带分布主要受13°N以南海域风场的调控，且滞后风场1周。当13°N以南海域受异常东北风（西南风）控制时，高值带位于其多年平均位置以北（南）。
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| 关 键 词： | 叶绿素 叶绿素浓度高值带 年际变化 风场 |
| 收稿时间： | 2016/6/27 0:00:00 |
| 修稿时间： | 2017/3/10 0:00:00 |
Interannual variability of the high chlorophyll a concentration strip in the western South China Sea during summer |
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| Gu Yuanyuan,Wang Jing,Chu Xiaoqing and Cheng Xuhua.Interannual variability of the high chlorophyll a concentration strip in the western South China Sea during summer[J].Acta Oceanologica Sinica (in Chinese),2017,39(6):1-9. |
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| Authors: | Gu Yuanyuan Wang Jing Chu Xiaoqing and Cheng Xuhua |
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| Institution: | Guangdong Key Laboratory for Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, China;State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China,Guangdong Key Laboratory for Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, China,State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China and State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China |
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| Abstract: | Based on the SeaWiFS and MODIS chlorophyll a (Chl a) concentration data from 1998 to 2013, the interannual variability of the high Chl a concentration strip in the western South China Sea(SCS) during summer is investigated. In summer,under the effect of the eastward current, the Chl a and the nutrients are advected offshore into the open SCS, which contributes to forming the high Chl a concentration strip, whose distribution pattern seems in accord with the direction of the eastward current. Our analysis shows that in the study region,monsoon in the south of 13°N plays a significant role in determining the distribution of the chlorophyll with 1 week delay, and the interannual variability of wind anomaly results in the variability of the high chlorophyll concentration strip. When the area is controlled by anomalous northeast (southwest) monsoon, the strip moves northward (southward). |
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| Keywords: | chlorophyll the high Chl a concentration strip interannual variability wind |
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