利用高分辨率的数值模式，结合观测和再分析资料，本项目拟阐明黑潮延伸体区海洋中尺度涡对北太平洋天气系统尤其是北太平洋阻塞的影响及其动力机制；深入探讨海洋中尺度涡通过潜热释放影响湿斜压不稳定从而影响副热带气旋生成和发展的具体机制，讨论不同强度、不同类别、不同源地的风暴系统对海洋中尺度涡的不同响应；研究海洋中尺度涡对东亚大陆降水的影响、季节变化及其与东亚季风之间的关系。

Based on both high resolution numerical modeling and observational data, focused in Kuroshio extension region in the North Pacific, this study is proposed to investigate the influence of Kuroshio mesoscale oceanic eddies on North Pacific weather system, especially the effect on North Pacific extreme weather event blocking and the dynamics behind. Mesoscale oceanic eddies can influence cyclogenensis and storm track through moist baroclinic instability. This dynamics will be carefully studied by considering cyclones with different amplitude, type and origin. We will further explore the influence of Kuroshio mesoscale oceanic eddies on the upstream precipitation over East Asian land area and its seasonality as well as its relationship with East Asian monsoon.