Travel Support for Early Career Scientists for the Chapman Conference on Non- Volcanic Stratospheric Aerosol; Tenerife, Canary Islands, Spain; March 18-23, 2018

该项目支持学生前往美国地球物理联合会的查普曼会议，题为“平流层气溶胶在过去20年：过程维持气溶胶，与气候和化学的相互作用，以及历史类比的重要性。“这次会议为世界领先的平流层气溶胶和前体气体观测和建模专家提供了一个场所，以介绍和讨论与1996年至今的平静到温和火山期间控制平流层气溶胶的特征和过程有关的主要科学问题的结果。会议的更广泛影响将来自意见交流，这将有助于研究界关注平流层气溶胶的控制过程，并为年轻科学家提供一个与该领域领导人会面、建立网络和交流意见的机会。与会者讨论的智力挑战包括：（1）比较和解决来自不同平台的平流层气溶胶和气相硫的测量结果;（2）从光学特性的远程卫星测量中推导出气溶胶表面积、横截面和不对称参数;（3）确定从远程光学测量中推导出的地球物理量的准确性;（4）将气溶胶和气相气候的测量结果外推到没有测量的地区和时间段。这次会议的主题将大大有助于建立对所用气溶胶气候学的信心，并为测试具有固有气溶胶的模型提供基础。

This project supports student travel to the American Geophysical Union's Chapman Conference entitled, 'Stratospheric aerosol during the past 20 years: Processes sustaining the aerosol, interactions with climate and chemistry, and importance for historical analogues.' This conference provides a venue for the world's leading observational and modeling experts in stratospheric aerosol and precursor gases to present and discuss results focused on major science questions related to the character and processes controlling stratospheric aerosol during the quiescent to mildly volcanic period of 1996 to the present. The broader impacts of the conference will derive from the exchange of ideas that will help focus the research community on the processes controlling stratospheric aerosol, and provide an opportunity for young scientists to meet, network, and exchange ideas with leaders in the field. The intellectual challenges addressed by the meeting participants include: (1) Comparing and resolving measurements of stratospheric aerosol and gas phase sulfur from different platforms; (2) Deriving aerosol surface area, cross section, and asymmetry parameter from remote satellite measurements of optical properties; (3) Establishing the accuracy of the geophysical quantities derived from remote optical measurements; and (4) Extrapolating measurements of aerosol and gas phase climatologies to regions and time periods not measured. Topics at this meeting will contribute significantly to establish confidence in the aerosol climatologies used and in providing a basis against which models with intrinsic aerosol can be tested.