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

9815140汉森该项目包括在麦克默多干谷安装一台测量碳质气溶胶的仪器，并生成一个数据库，用于评估美国南极计划对南极环境的影响。麦克默多干谷是长期生态研究(LTER)研究地点的所在地，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显著影响。一方面是柴油发电机的废气和干燥山谷内的直升机作业产生和沉积的含碳气溶胶颗粒(“黑碳”)，以及燃烧产物可能从大约100公里以外的麦克默多站长途运输。LTER现场将部署一台实时光学分析仪，为期三个南半球夏季，以测量黑碳、多环芳烃和其他可过滤有机物质的浓度，这些有机物质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.