Global and Regional Studies of Tropospheric Composition Using a Three-Dimensional (3-D) Model

该项目使用戈达德地球观测系统(GEOS-CHEM)三维化学输送模型来调查控制对流层臭氧和选定的对流层相关痕量成分的过程，主要依靠卫星遥感、飞机和地面站数据集来初始化、约束和评价该模型。高分辨率模拟将特别注重对全球环境重要的选定痕量气体的过程和区域研究，重点放在年际变化和对区域源和汇的调查上。将与丹尼尔·雅各布(哈佛大学)合作开展有关微量碳气体的工作。将对亚洲地区及其对全球环境的影响进行调查，包括对欧洲和美国排放对亚洲空气质量的影响这一有点新奇的考虑。该项目将提供有关几个重要对流层微量成分全球浓度场的重要最新信息，这对预测未来的浓度很重要。结果将在全球国际社会，特别是那些正在经历快速经济发展的国家产生重要的与政策相关的影响。该奖项将为研究生和博士后提供教育机会。

This project uses the Goddard Earth Observing System (GEOS-CHEM) three-dimensional chemical-transport model to investigate processes controlling tropospheric ozone and selected related trace constituents of the troposphere, relying heavily on satellite remote-sensing, aircraft and surface station data sets to initialize, constrain and evaluate the model. The high-resolution modeling will focus specifically on process and regional studies of selected trace gases important to the global environment, placing emphasis on interannual variability and an investigation of regional sources and sinks. Work on trace carbon gases will be carried out in collaboration with Daniel Jacob (Harvard University). The Asian region and its effect on the global environment will be investigated, including the somewhat novel consideration of the influence of European and American emissions on Asian air quality. The project will provide important updated information on concentration fields globally of several important tropospheric trace constituents, important for projections of future concentrations. Results will have important policy-relevant implications within the global community of nations, especially those undergoing rapid economic development. This award will provide educational opportunities for graduate students and a post-doctoral student.