COLLABORATIVE RESEARCH: A Glaciochemical Record of Natural and Anthropengic Environmental Change in the Northwestern North American Arctic

0136146这是新汉普郡大学和缅因州大学与加拿大地质调查局的合作提案。国际科学与工程办公室正在为这一奖项做出贡献。首席调查员将于2002年与加拿大地质调查局合作，在加拿大育空地区圣埃利亚斯山脉的日食冰场(3100米)找到两个冰芯。堆芯将进行稳定同位素、主要离子、微量元素、稀土元素和持久性有机污染物的分析。日食记录将首次提供北美北极偏远西北部地区过去200年来各种污染物的详细沉积历史。通过使用独特的化学示踪剂，首席调查人员将能够确定这些污染物的来源区域、来源区域随时间的变化以及大气环流在控制北美北极西北部污染物分布方面的作用。对自然和人为变化的详细多参数记录将大大改善目前记录很少的区域的气候和环境变化记录。

0136146WakeThis is a collaborative proposal between the Universities of New Hampshire and Maine and the Geological Survey of Canada. This Office of International Science and Engineering is contributing to this award. The Principal Investigators will recover two ice cores the Eclipse Icefield (3100 meters) in the St. Elias Mountains, Yukon Territory, Canada in cooperation with the Geological Survey of Canada in 2002. The core will be analyzed for stable isotopes, major ions, trace elements, rare earth elements and persistent organic pollutants. The Eclipse record will provide, for the first time, detailed depositional histories of a wide variety of pollutants during the last 200 years in the remote northwest North American Arctic. Through the use of unique chemical tracers, the Principal Investigators will be able to identify source regions for these pollutants, changes in source regions with time, and the role of atmospheric circulation in controlling contaminant distributions in the northwest North American Arctic. The detailed multi-parameter record of natural and anthropogenic change will result in a greatly improved record of climate and environmental change for a region in which very few records currently exist.