International Arctic Research Center (IARC)

这是一项继续支持阿拉斯加州费尔班克斯大学国际北极研究中心(IARC)的提案。在北极气候：建模和过程(CAMP)的主题下，IARC将利用其独特的国际特性跨学科边界整合和综合，从而在北极气候研究中发挥必要的作用，从而在北极建模和全球建模社区之间建立联系。IARC的项目旨在加强同意参与IARC努力的国际研究人员对IARC综合和整合工作的战略协作。本延长提案概述了研究计划，并具体说明了第一年计划开展的活动。IARC工作的核心研究领域包括：(1)永冻土/冻土模拟，其中最先进的土壤水文学和热力学公式将利用全面的实地测量和永冻土的综合数据集，包括来自巴罗永久冻土观测站的数据；(2)北极生物群/植被的变化，其中将使用泛北极数据来模拟植被覆盖的变化、干扰(例如，火)的作用以及对外部强迫气候变化的反馈；(3)北冰洋/海冰研究，在这些研究中，核心活动(北冰洋模式相互比较项目和南森-阿蒙森盆地观测系统)的交叉将提供关于流入北极的大西洋水的配置和变化性的新的见解；(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，包括对云辐射和水分反馈、极端事件(如洪水、干旱、风暴)的变化研究，以及降低对北极的粗分辨率模式输出的战略。通过与日本科学家的合作项目，国际层面将得到加强。外联活动将包括北极气候影响评估(ACIA)，秘书处设在IARC。

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.