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

9815140汉森该项目涉及安装一台仪器来测量麦克默多干谷中的含碳气溶胶，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。麦克默多干谷是一个长期生态研究（LTER）研究地点，营养有限的生态系统，可能会受到人类活动的重大影响。 一个方面是柴油发电机和直升机在干谷内作业的废气产生和沉积含碳气溶胶颗粒（“黑炭”），以及燃烧产物可能从大约100公里远的麦默多站长途运输。 将在南部三个夏季在LTER现场部署一个实时光学分析仪，以测量黑碳、多环芳烃和其他可过滤有机物的浓度，这些可过滤有机物可用于确定燃烧产物的指纹。

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.