Eddy Flux Measurements, Tussock Station, Imnavait Creek, Alaska - 2013

The Biocomplexity Station was established in 2005 to measure landscape-level carbon, water and energy balances at Imnavait Creek, Alaska. The station is now contributing valuable data to the AON project that was established at two nearby stations. These will form part of a network of observatories with Abisko (Sweden), Zackenburg (Greenland) and a location in the Canadian High Arctic which will provide further data points as part of the International Polar Year. This particular part of the project focuses on simultaneous measurements of carbon, water and energy fluxes of the terrestrial landscape at hourly, daily, seasonal and multi-year time scales. These are the major regulatory drivers of the Arctic climate system and form key linkages and feedbacks between the land surface, the atmosphere and the oceans. We will provide a comprehensive description of the state of the regional Arctic system with respect to these variables, its overall regulation and controlling features and its interaction with the global system.生物复杂性观测站（Biocomplexity Station）于2005年正式设立，旨在对美国阿拉斯加州伊纳维特溪（Imnavait Creek）区域的景观尺度碳、水与能量平衡开展观测。目前该观测站正为依托周边两处站点设立的北极观测网络（Arctic Observing Network, AON）项目提供宝贵观测数据。上述观测数据将与瑞典阿比斯库（Abisko）、格陵兰扎肯堡（Zackenburg）以及加拿大高北极地区某站点的观测数据共同组成观测台站网络，作为国际极地年（International Polar Year）计划的组成部分，该网络将提供更多观测数据点。本项目的该分支聚焦于在小时、日、季节及多年时间尺度上，对陆地景观的碳、水与能量通量开展同步观测。上述通量是北极气候系统的核心调控驱动因子，同时构成了陆地表面、大气与海洋之间关键的连接纽带与反馈机制。本数据集将针对上述变量，全面阐释北极区域系统的运行状态、整体调控规律与关键控制特征，以及其与全球系统的相互作用。