The Ninth International GEOS-Chem Meeting (IGC9); Cambridge, Massachusetts; May 6-9, 2019

该项目支持学生和早期职业旅行参加第九届国际GEOS-Chem会议（IGC9）。GEOS-Chem会议每两年在哈佛举行一次，是全球大气化学建模界的重大活动，约有200名与会者，主题范围非常广泛。GEOS-Chem是一个开放源代码的全球大气成分三维模型，被全球150多个研究小组积极使用，其中包括美国的52个研究小组。本次会议将汇集专家交流信息，为与气候动力学、生物地球化学和空气质量相关的大气成分建模的基础研究提供信息和刺激。GEOS-Chem的应用涵盖了非常广泛的大气成分问题，包括氧化剂、气溶胶、碳气体、平流层化学、汞、持久性有机污染物等。GEOS-Chem与用于研究化学-气候-生态系统相互作用的地球系统模型、用于化学数据同化的气象数据系统、用于空气质量应用的区域模型以及用于政策应用的评估模型相联系。GEOS-Chem模型在由17位美国大学教授组成的指导委员会的指导下，由哈佛大学集中管理。基于哈佛大学、科罗拉多大学和达尔豪斯大学的GEOS-Chem支持团队负责模型开发、基准测试、文档、沟通和教育。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This project support student and early career travel to the 9th International GEOS-Chem Meeting (IGC9). The GEOS-Chem Meeting is held at Harvard every two years and is a major event for the global atmospheric chemistry modeling community, with about 200 attendees and a very broad range of topics. GEOS-Chem is an open-source global 3-D model of atmospheric composition used actively by over 150 research groups around the world, including 52 in the US. This meeting will bring together experts to exchange information that will inform and stimulate fundamental research in modeling of atmospheric composition with links to climate dynamics, biogeochemistry, and air quality. Applications of GEOS-Chem span a very wide range of atmospheric composition problems including oxidants, aerosols, carbon gases, stratospheric chemistry, mercury, persistent organic pollutants, and others. GEOS-Chem links with Earth System Models for studies of chemistry-climate-ecosystem interactions, with meteorological data systems for chemical data assimilation, with regional models for air quality applications, and with assessment models for policy applications. The GEOS-Chem model is centrally managed at Harvard with guidance from a Steering Committee including 17 US university professors. A GEOS-Chem Support Team based at Harvard, University of Colorado, and Dalhousie University is responsible for model development, benchmarking, documentation, communication, and education.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.