BEST: The Impact of Changes in Sea Ice on the Physical Forcings of the Eastern Bering Ecosystem - Retrospective Investigation and Future Projection

PIS建议对白令海冰盖的历史和现代变化以及这些变化对白令海海洋气候的影响进行模型研究。此外，他们还将调查在全球变暖的情况下，东白令海洋环境的未来变化。他们的目标是：1)模拟自1970年以来东白令冰洋系统的历史演变；2)确定大气、海冰和海洋之间的关键联系，以了解影响生态系统的物理过程的机制；3)研究白令海气候与太平洋和北极气候之间的相互作用；4)估计不同气候变化情景下海洋系统的状态。为了实现这些目标，他们建议开发一个最先进的白令生态系统研究冰-海洋模拟和同化系统(BESTMAS)，用于合成和模拟东白令海。BESTMAS将把先进的海冰和海洋模型与广泛的数据同化和现实的大气、陆地和潮汐强迫结合在一起。它将允许对东部白令海进行高分辨率(7公里)模拟，并与北太平洋中部和北极建立良好的连接。模型输出将用于协助白令海生态系统研究(BEST)的实地工作规划和数据合成，并支持现实的生态系统建模。

Zhang0611967The PIs propose a model study of the historical and contemporary changes of the Bering Sea ice cover and the impacts of these changes on Bering Sea marine climate. Additionally, they will investigate future changes of the eastern Bering marine environment under global warming scenarios. Their objectives are:1) To simulate the historical evolution of the eastern Bering ice-ocean system since 1970;2) To identify key linkages among the atmosphere, sea ice, and ocean in order to understand mechanisms affecting physical processes influencing the ecosystem;3) To examine the interactions between the Bering Sea climate and the Pacific and Arctic climates; and4) To estimate the state of the marine system under different scenarios of climate change.To achieve these goals they propose to develop a state-of-the-art Bering Ecosystem STudy ice-ocean Modeling and Assimilation System (BESTMAS) for synthesis and modeling of the eastern Bering Sea. BESTMAS will combine advanced sea ice and ocean models with extensive data assimilation andrealistic atmospheric, terrestrial, and tidal forcings. It will allow both high-resolution (7 km) simulation of the eastern Bering Sea, and good connections to the central North Pacific and the Arctic. The model output will be used to assist fieldwork planning and data synthesis for the Bering Sea Ecosystem Study (BEST) and support realistic ecosystem modeling.