International Arctic Research Center (IARC)

这是一项继续支持阿拉斯加大学费尔班克斯国际北极研究中心（IARC）的提议。在北极气候：建模和过程（CAMP）的主题下，IARC将通过利用其独特的国际性来整合和综合跨学科边界，从而在北极建模和全球建模社区之间形成联系，从而填补北极气候研究所需的角色。IARC的项目旨在加强同意参加IARC工作的国际研究人员在IARC综合和整合工作方面的战略合作。本延长建议概述了研究计划，并具体说明了第一年计划开展的活动。IARC的核心研究领域包括：（1）永久冻土/冻土模拟，其中最先进的土壤水文学和热力学公式将利用永久冻土的全面实地测量和综合数据集，包括来自巴罗永久冻土观测站的数据;（2）北极生物区系/植被的变化，为此将使用泛北极数据来推动植被覆盖变化的模拟，干扰的作用（例如，（3）北冰洋/海冰研究，其中核心活动的交叉（北冰洋模型相互比较项目和南森-阿蒙森海盆观测系统）将提供关于流入北极的大西洋水的分布和变化的新的见解;以及（4）对模拟和预测气候变化至关重要的北极大气过程的研究，包括云辐射和水分反馈的研究，极端事件的变化（例如，洪水、干旱、风暴），以及将粗分辨率模式输出降尺度到北极的战略。国际层面将通过与日本科学家的合作项目得到加强。外联活动将包括北极气候影响评估，该评估的秘书处设在国际癌症研究机构。

This is a proposal for continued support of the International Arctic Research Center (IARC) at the university of Alaska Fairbanks. Under the theme of Climate of the Arctic: Modeling and Processes (CAMP), IARC will fill needed roles in arctic climatic research by using its unique international character to integrate and synthesize across discipline boundaries, thereby forming a connection between the arctic modeling and global modeling communities. IARC's projects are intended to enhance strategic collaboration for IARC's synthesis and integration efforts by international researchers who have agreed to participate in IARC's efforts. The present renewal proposal outlines research plans, and provides specific descriptions of the activities planned for the first year. Research areas central to the IARC effort include (1) permafrost/frozen-soil modeling, in which state-of-the-art soil hydrology and thermodynamic formulations will draw upon comprehensive field measurements and integrated datasets of permafrost, including data from the Barrow Permafrost Observatory; (2) changes of arctic biota/vegetation, for which pan-Arctic data will be used to drive simulations of changes in vegetative cover, the role of disturbance (e.g., fire), and feedbacks to externally forced climate change; (3) Arctic Ocean/sea ice studies in which the intersection of core activities (the Arctic Ocean Model Intercomparison Project and the Nansen-Amundsen Basin Observational System) will provide new insights into the disposition and variability of Atlantic water inflow to the Arctic; and (4) studies of arctic atmospheric processes that are central to simulating and projecting climate change, including studies of cloud-radiative and moisture feedbacks, changes in extreme events (e.g., floods, droughts, storms), and strategies for downscaling coarse-resolution model output to the Arctic. The international dimension will be enhanced by collaborative projects with Japanese scientists. Outreach activities will include the Arctic Climate Impact Assessment (ACIA), for which the Secretariat is at IARC.