Measurement of Combustion Effluent Carbonaceous Aerosols in the McMurdo Dry Valleys, Antarctica

9815140 hansen这个项目包括安装一台仪器来测量麦克默多干谷的碳质气溶胶，并建立一个数据库，用于评估美国南极计划的运作对南极环境的影响。麦克默多干谷（McMurdo Dry Valleys）是长期生态研究（LTER）的研究地点，它支持着一个脆弱的、营养有限的生态系统，可能会受到人类活动的严重影响。一个方面是干谷内柴油发电机和直升机的废气产生和沉积的含碳气溶胶粒子（“黑碳”），以及大约100公里外的麦克默多站燃烧产物可能的长距离运输。在南方的三个夏季，LTER站点将部署一台实时光学分析仪，以测量黑碳、多环芳烃和其他可过滤有机化合物的浓度，这些可用于指纹识别燃烧产物。

9815140HansenThis project involves the installation of an instrument to measure carbonaceous aerosol in the McMurdo Dry Valleys, and the generation of a data base that will be used to assess the impact of the operations of the U.S. Antarctic Program on the antarctic environment.The McMurdo Dry Valleys, the location of a Long-Term Ecological Research (LTER) study site, supports a fragile, nutrient-limited ecosystem that may be significantly affected by human activities. One aspect is the generation and deposition of carbonaceous aerosols particles ("black carbon") from the exhaust of diesel power generators and helicopter operations within the Dry Valleys, and the possible long-distance transport of combustion products from McMurdo station, approximately 100 km distant. A real-time optical analyzer will be deployed at the LTER site for three austral summer seasons to measure the concentration of black carbon, polycyclic aromatic hydrocarbons, and other filterable organic useful in fingerprinting combustion products.