RAPID: Ocean Forcing for Ice Sheet Models for the IPCC Sixth Assessment Report

这项研究将促进冰盖模型与海洋-大气系统之间更好的联系，并为政府间气候变化专门委员会（IPCC）即将发布的第六次评估报告（AR6）改进海平面上升预测。在最近一次参与冰盖模型比对项目（ISMIP6）的国际科学家联盟会议上，与会者就了解海洋条件如何与格陵兰岛和南极洲冰盖模型相互作用所需的新信息达成了一致。由于这些信息需要在未来几个月内完成下一份评估报告的最后期限，因此这个快速反应（Rapid）项目既及时又紧迫，可以帮助社会规划和应对海平面上升。它将支持两名初级科学家，一名博士后研究员和一名研究助理，他们将从与国际冰盖建模社区的互动和接触中受益。该项目将支持一项社区努力，为气候预测的冰盖模型推导海洋作用力。由于需要在2019年底之前运行冰盖模型模拟并公布IPCC第六次评估报告的结果，因此它具有时间敏感性。与此同时，包括海洋强迫在内的全冰原模式动力学的发展直到最近才得以实现。这项研究将导致对格陵兰冰川和南极洲冰架的海洋强迫的知识状况的综合，以及在给定模式约束下可以实施的最佳参数化。除了在第六次评估报告中立即应用之外，预计这项工作将为将来可能实现海洋-大气和冰盖模式的完全耦合时采用类似方法奠定基础。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This research will facilitate better connections between models of ice sheets and the ocean-atmosphere system and improve sea level rise projections for the Intergovernmental Panel on Climate Change (IPCC)'s upcoming sixth Assessment Report (AR6). During the latest meeting of the international consortium of scientists participating in the Ice Sheet Modeling Intercomparison Project (ISMIP6), attendees agreed upon new information that will be needed to understand how ocean conditions may interact with the ice sheet models of Greenland and Antarctica. Because this information is required within the next several months to meet deadlines for the next Assessment Report, this Rapid Response (RAPID) project is both timely and urgent to help society plan for and respond to sea level rise. It will support two junior scientists, a postdoctoral researcher and a research associate, and they will benefit from interaction with and exposure to the international ice sheet modeling community. This project will support a community effort to derive ocean forcings for ice sheet models for climate projections. It is time sensitive because of the need to run ice sheet model simulations and publish results by the end of 2019 for the IPCC sixth Assessment Report. At the same time, developments in ice sheet-wide model dynamics that incorporate ocean forcing have only recently become available. This study will lead to a synthesis of the state of knowledge of ocean forcing on Greenland's glaciers and Antarctica's ice shelves and optimal parameterizations that can be implemented given model constraints. In addition to immediate application in the sixth Assessment Report, it is expected that this work will lay the foundation for a similar approach in the future when full coupling of ocean-atmosphere and ice sheet models are possible.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.