Southeast Atmosphere Studies Workshop: Intensive Observation Period Modeling to Improve Mechanistic Representation of Trends; Princeton, New Jersey; June 2015

该项目支持在国家海洋和大气管理局地球物理流体动力学实验室举办的小型建模研讨会（NOAA/GFDL）在新泽西州普林斯顿汇集了一组科学家，专注于使用2013年在东南大气研究（SAS）期间收集的数据，这是一项由国家科学基金会大气化学计划部分支持的实地活动，研究生物圈-大气相互作用和大气中二次有机气溶胶（SOA）的形成。 讲习班的目的是评估、诊断和改进不同时间和空间尺度的气候和空气质量建模，以改进基本大气过程的表现。这项工作将主要集中在模拟美国东南部对流层中SOA和其他痕量物种形成的模型上，最终目标是了解这些物种的辐射影响。讲习班的预期成果是：（1）调和全球和区域模型之间关于生物源挥发性有机化合物排放清单的差异;（2）就用于三维化学模型的凝聚异戊二烯气相化学提出建议;（3）利用SAS的数据确定主要的SOA前体和生产途径受到限制的程度;（4）总结大气化学对美国东南部区域气候的可能影响。该研讨会使美国科学家社区能够共同努力，利用SAS活动期间收集的大量数据来回答一些社会感兴趣的关键问题。 例如，一个重要的问题是：人为和生物排放在美国东南部臭氧和颗粒物浓度高的原因中扮演了什么角色？在这一地区进行SOA建模的最佳策略是什么？ 这些问题对于更好地了解美国东南部的空气质量和气候非常重要。

This project supports a small modeling workshop to be held at the National Oceanic and Atmospheric Administration's Geophysical Fluid Dynamics Laboratory (NOAA/GFDL) in Princeton, NJ to bring together a group of scientists to focus on using the data collected in 2013 during the Southeast Atmosphere Studies (SAS), a field campaign supported in part by the Atmospheric Chemistry Program at National Science Foundation, to investigate biosphere-atmosphere interactions and the formation of secondary organic aerosol (SOA) in the atmosphere. The purpose of the workshop is to evaluate, diagnose and improve climate and air quality modeling of different temporal and spatial scales for improving representation of fundamental atmospheric processes. The effort will focus primarily on models that simulate the formation of SOA and other trace species in the troposphere over the Southeast US, with the ultimate goal of understanding the radiative impacts of these species. The expected results of the workshop are to: (1) reconcile the discrepancies on biogenic volatile organic compound emission inventories among global and regional models; (2) make recommendations for a condensed isoprene gas-phase chemistry for use in 3-D chemical models; (3) identify the extent to which major SOA precursors and production pathways can be constrained using data from SAS; (4) summarize the possible impact of atmospheric chemistry on regional climate over Southeast US.The workshop is enabling the community of US scientists to work together to utilize the massive amounts of data collected during the SAS campaign to answer some key questions of societal interest. For example, an important question is: what are the roles of anthropogenic and biogenic emissions in contributing to high ozone and particulate matter concentrations over the Southeast US? And what is the best strategy for modeling SOA over this region? These questions are important for gaining a better understanding of air quality and climate in the Southeast US.