当前，全球极端海洋热浪事件频发，海水异常高温可引起局部海洋生态环境剧烈变化，对海洋生态系统、生物多样性和海洋渔业产生重大影响。1987-2016年期间的年均热浪天数比1925-1954年增加了54%。NOAA OI长期（1982-2018年）卫星遥感SST数据显示，南黄海及东海北部海域2016和2017年连续两个夏季（6-8月）发生近四十年来最强海洋热浪事件。此极端海洋热浪事件的发生势必对我国近海海洋生态系统产生显著影响。然而，我们对此极端海洋热浪事件的内在机制仍缺乏明确的认识。本项目拟以卫星遥感资料及现场观测数据为基础，以三维、高时空分辨率区域海洋动力模型为主要工具，模拟2016-2017年夏季南黄海及东海北部海域极端海洋热浪事件的高分辨率时空变化特征，阐明该系列极端海洋热浪事件发生的原因，揭示此海域异常高温的持续及消亡的关键控制机制，最终为海洋渔业及养殖业决策提供重要科学依据。

At present, the frequencies of Marine heatwave events (MHWs) are increasing in the global scale. MHWs cause remarkable changes in the local environment, which significantly affects the biodiversity, the ecosystem, and the marine fishery. Significant secular increases were found in both the frequency and duration of MHWs, amounting globally to a 54% increase in annual marine heatwave days between 1925–1954 and 1987–2016. The NOAA OISST data show that two successive record-breaking warm summers during 2016-2017 were unprecedented during the past four decades in South Yellow Sea and north part of East China Sea (ECSs), which would certainly affect the ecosystem. However, the anomalous atmospheric and oceanic conditions responsible for those MHWs were not clear yet. Based on the satellite and in-situ data, the aim of this study is to use the regional ocean model to characterize the anomalous warming in high spatial and temporal resolutions, examine the drivers of MHWs and illustrate the physical mechanisms for the sustaining and vanishing of extreme warming in the ECSs. The achievement of this project will be of great scientific importance to the management of marine fisheries and aquaculture.