本周实验室学术报告如下：

报告一：Relative contributions of North and South Pacific sea surface temperature anomalies to ENSO

报告人简介：丁瑞强，北京师范大学教授、博士生导师。国家优秀青年科学基金获得者。现担任国际气候学委员会(ICCL)委员。曾荣获首届Early Career Scientist Awards of IUGG、卢嘉锡青年人才奖等荣誉。主持多项自然科学基金面上和气象局公益专项项目，研究方向包括可预报性、集合预报和海气相互作用等。已发表论文100余篇（包括SCI论文80余篇）。

报告简介：Variations in the sea surface temperature (SST) field in both the North Pacific [represented by the Victoria mode (VM)] and the South Pacific [represented by the South Pacific Quadrapole (SPQ) mode] are related to the state of the El Ni？o-Southern Oscillation (ENSO) three seasons later. Here, with the aid of observational data and numerical experiments, we demonstrate that both VM and SPQ SST forcing can influence the development of ENSO events through a similar air–sea coupling mechanism. By comparing ENSO amplitudes induced by the VM and SPQ, as well as the percentages of strong ENSO events followed by the VM and SPQ events, we find that the VM and SPQ make comparable contributions and therefore have similar levels of importance to ENSO. Additional analysis indicates that although VM or SPQ SST forcing alone may serve as a good predictor for ENSO events, it is more effective to consider their combined influence. A prediction model based on both VM and SPQ indices is developed, which is capable of yielding skillful forecasts for ENSO at lead times of three seasons.

报告二：Transparent exopolymer particles (TEP) in a coastal frontal zone and the associated biogeochemical implications

报告人：葛在名，中国科学院南海海洋研究所， 博士研究生。

报告简介：透明胞外聚合物(TEP)对海洋碳循环起着重要作用。我们对南海北部沿岸水体的一个温度锋面过程的TEP动力学过程进行了调查。结果表明了温度锋面过程中TEP的分布模式和控制因素，揭示了TEP在温度锋面过程中如何影响近岸碳循环过程。

主 持 人： 詹伟康 助理研究员，池建伟 助理研究员

报告形式为线上报告，请使用“ZOOM”进入会议室，具体信息如下：

会议时间:  2020年7月30日（周四） 北京时间 09:00 AM  

会议链接：https://zoom.us/j/97444155653

会 议 ID： 974 4415 5653