Alaska-Canada Barrenlands Traverse (AC-BT)

该项目将在2007年国际极地年期间对整个北美北极进行一次雄心勃勃的研究和教育样带。美国和加拿大的团队将收集雪测量和雪样本沿着沿着4000公里的导线通过造雪机从圈，阿拉斯加贝克湖，加拿大。该团队将沿着访问至少11个偏远社区，包括土著社区和钻石矿，以观察和记录北极环境变化，并收集北极居民的观察结果。该团队将与K-12教育工作者和教室的既定社区互动，了解他们的旅程和他们通过GoNorth所做的科学！教育网站。探险队将访问贫瘠之地，那里很少有人研究，尤其是在冬天。来自该地区的雪测量和样本将丰富越来越多的利用雪来跟踪诸如黑炭和卤素离子等大气成分的工作。该小组还将进行地面实况遥感测量，以提高我们通过卫星监测积雪特性的能力。该小组正在使用“发现之旅”的方法重新访问过去150年来研究人员和探险家占领的数十个地方。这项活动与2007年3月开始的IPY 2007特别相关。

This project will make an ambitious research and education transect across the North American arctic during International Polar Year 2007. The U.S. and Canadian team will collect snow measurements and snow samples along a 4000 km traverse via snowmachine from Circle, Alaska to Baker Lake, Canada. The team will visit at least 11 remote communities along the way including Native communities and diamond mines to observe and document arctic environmental change and collect observations from arctic residents. The team will interact with an established community of K-12 educators and classrooms about their journey and the science they are doing through the GoNorth! education website. The expedition will visit the Barrenlands which have seldom been studied, particularly in winter. Snow measurements and samples from this region will enrich the growing body of work using snow to track atmospheric components such as black charcoal and halogen ions. The group will also ground-truth remote sensing measurements to improve our ability to monitor snow properties via satellite. The group is using a 'journey of discovery' approach to revisit dozens of places occupied by researchers and explorers in the past 150 years. This activity is particularly relevant to IPY 2007, which begins in March of 2007.