Tropical Tropopause Layer Chemistry Experiment (TTL-CHEM) - Project Coordination

该奖项将支持协调热带对流层顶层化学实验(TTL-CHEM)的继续规划，该实验计划于2007年使用HIAPER(高海拔环境研究平台)飞机。TTL-Chem解决了对流层上层/平流层下层(UT/LS)区域的光化学问题。具体地说，该实验将研究热带对流层中上层和最大对流区附近的下风化学。科学问题包括：(1)西太平洋对流区外流的化学性质是什么？(2)从热带边界层输送到TTL的短期化合物的化学命运是什么？(3)TTL内部和以下的臭氧控制机制是什么？TTL-Chem项目有望提供关于大气区域的新信息，这对了解平流层臭氧的预算和气候系统都很重要。

This award will support the coordination of the continued planning for the Tropical Tropopause Layer Chemistry Experiment (TTL-Chem), planned for 2007 using the HIAPER (High Altitude Platform for Environmental Research) aircraft. TTL-Chem addresses the photochemistry of the Upper Troposphere/Lower Stratosphere (UT/LS) region. Specifically, the experiment will investigate the chemistry of the tropical middle and upper troposphere near and "down-wind" of the region of maximum convection. Science questions include: (1) What is the chemical nature of the outflow from the convective region of the Western Pacific? (2) What are the chemical fates of short-lived compounds transported from the tropical boundary layer into the TTL? (3) What are the mechanisms that control ozone within and below the TTL?The TTL-Chem project is expected to provide novel information about a region of the atmosphere that is important for understanding both the budget of stratospheric ozone, but also the climate system.