全球变化科学紫荆论坛第473期
时间：2024年10月11日（周五）
10:00-11:00
地点：清华大学蒙民伟科技大楼南楼927
主讲人
薛惠洁/教授
厦门大学近海海洋环境科学国家重点实验室
报告题目：
Multi-scale Variability in the Indonesian Seas
报告内容简介
The Indonesian seas feature a wide spectrum of variations in hydrography and circulation. This study applies a simple frequency-based time series decomposition method to the 20-year (2000-2019) model simulation, revealing the spatial distributions of intra-seasonal, semi-annual, annual, and inter-annual variation, respectively. K-means clustering based on the decomposed variability is used to explore dynamical similarities and differences among different basins of the Indonesian seas, highlighting the competing impacts of annual and inter-annual variations. The Indonesian seas lie at a "crossroad" where the inter-annual variation dominates in a NE-SW oriented deep-ocean regime, while the annual variation prevails in a NW-SE oriented marginal sea regime. The former is primarily associated with the ENSO induced Rossby waves from the equatorial Pacific Ocean, whereas the latter is driven by the local monsoonal winds. Moreover, the current profiles reveal significant differences between the main and east branches of the Indonesian Throughflow such that the interannual anomalies occur in opposite directions and that the annual variations are more prominent above (below) the thermocline in the main (east) branch.
主讲人简介
薛惠洁，博士毕业于美国普林斯顿大学，现任厦门大学南强特聘教授。先后在美国北卡罗来纳大学海洋科学系担任博士后、研究助理教授，美国缅因大学助理教授、副教授、教授。2013-2020年入选国家特聘专家(海外高层次人才引进计划),兼职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研究员。曾担任IWMO国际指导委员会主席，现任Progress inOceanography(海洋学进展)副主编、Ocean-Land-Atmosphere Research(海洋-陆地-大气研究)编委等职务。主要研究方向为海洋动力过程与数值模拟，边缘海动力学，大洋西边界流、锋面和涡旋，近海预测与应用，物理-生物耦合模型和区域海气相互作用。
腾讯会议ID：291-110-464
地学系微博直播
蔻享学术平台直播
主办：
清华大学地球系统科学系
清华大学全球变化研究院
地球系统数值模拟教育部重点实验室
东亚迁徙鸟类与栖息地生态学教育部野外科学观测研究站
审核：耿睿
图文排版：王佳音
