Implementation of Advanced Land-Ice Models in the Community Earth System Model

该奖项为极地方案办公室内的南极综合系统科学和北极自然科学方案提供支持，支持在共同体地球系统模型中实施先进的陆冰模型。在气候变化时期，未来海平面上升的速度非常不确定，但如果冰盖融化的贡献继续增加，到2100年，全球平均海平面可能会上升一米以上。微光社区冰盖模式(GLIMMER-CISM)与社区地球系统模式(CESM)的完全耦合尚未完成，这阻碍了对未来全球海平面的理解。该奖项将为一名软件工程师提供支持，以完成以完全动态模式将冰模型与气候模型耦合的任务。这位软件工程师还将担任陆冰工作组(LIWG)和气候模型师之间的联络人。智力优势：作者建议将陆冰-冰盖模式(GLIMMER-CISM)完全耦合到GCM(CESM)。这种联结一旦成功，将产生气专委上一份报告中所说的缺失的动态联结。由于缺乏冰盖的动态组成部分，政府间气候变化专门委员会第四次报告的最后一位作者排除了冰盖对海平面上升的贡献。在模型成功耦合后，该团队(包括LIWG)将确定与陆冰流失相关的海平面上升范围，以支持IPCC AR5。广泛影响：虽然资金将专门用于一个人，但工作是针对社区模型进行的，因此结果将向整个研究界提供。关于更广泛的全球影响，改善未来全球海平面上升预测的总体目标对生活在沿海地区的任何人来说都具有明显的重要性。

This award provides support for "Implementation of Advanced Land-Ice Models in the Community Earth System Model" from the Antarctic Integrated System Science and Arctic Natural Science programs within the Office of Polar Programs. Future rates of sea-level rise in a time of climate change are highly uncertain, but global mean sea level could rise by more than one meter by the year 2100 if contributions from melting ice sheets continue to increase. Understanding future global sea level is hindered by the fact that full coupling of the Glimmer Community Ice Sheet Model (Glimmer-CISM) into the Community Earth System Model (CESM) has not been completed. This award will provide support for a software engineer to complete the task of coupling the ice model to the climate model in a fully dynamic mode. The software engineer will also serve as a liaison between the Land Ice Working Group (LIWG) and the climate modelers.Intellectual Merit: The authors propose to fully couple a land-ice sheet model (Glimmer-CISM) to a GCM (CESM). The coupling, when successful, will deliver the dynamic coupling called out as missing in the last IPCC report. The lack of a dynamic component for the ice-sheets led the last IPCC AR4 authors to exclude the contribution of ice-sheets to sea-level rise. Following the successful coupling of the models, the team (including the LIWG) will determine the range of sea-level rise associated with the loss of land-ice to support the IPCC AR5.Broader Impact: While funding will go specifically to one individual, the work is being done on community models, so the results will be available to the entire research community. With regards to the global broader impacts, the overall goal of improving future predictions of global sea-level rise is of obvious importance to anyone who lives on the coast.