Atmospheric Trace Constituents and Global Climate

本研究计划的主要目的是增进对臭氧-气候和气溶胶-气候过程及其相互作用的了解。PI和他的小组将结合观测开发和应用气候模式，以研究这些过程和相互作用，并评估气溶胶强迫的直接和间接影响。这项研究是与奥斯陆大学的Ivar Isaksen在辐射化学活性成分的化学方面以及SUNYA全球气候化学模型（GCCM）的发展方面进行合作的。GCCM完全基于社区气候系统模型（CCSM）。PIs将把平流层化学和硫化学模块整合到GCCM中，并开发气溶胶-云微物理的参数化。该模式将用于研究：(1)平流层和对流层臭氧在影响当前和未来气候中的作用，以及未来气候变化对大气化学和臭氧分布的影响，以及(2)硫酸盐气溶胶的直接和间接影响。更广泛的影响：这项研究有可能改善社区使用的气候模型。它还应该提高基于化学-大气动力学相互作用预测未来气候变化的理解和能力，这对环境管理者和决策者是有益的。提供博士后培训机会。

The main objective of this research project is improved understanding of ozone- climate and aerosol-climate processes and interactions. The PI and his group will develop and apply climate models in combination with observations to study these processes and interactions and for evaluating the direct and indirect effects of aerosol forcing. The research is collaborative with Ivar Isaksen/University of Oslo on both the chemical aspects of radiatively-chemically active constituents, and the development of the SUNYA global climate-chemistry model (GCCM). The GCCM is based completely on the Community Climate System Model (CCSM).The PIs will incorporate modules for stratospheric chemistry and sulfur chemistry into the GCCM, as well as the develop parameterizations for aerosol-cloud microphysics. The model will then be used to study: (1) the role of stratospheric and tropospheric O3 in affecting the present and future climate and the effect of future climate changes on atmospheric chemistry and O3 distribution, and (2) the direct and indirect effects of sulfate aerosols. Broader Impacts:This research has the potential to improve a community-use climate model. It also should improve understanding and the ability to project future climate changes based on chemistry - atmospheric dynamics interactions, a benefit to environmental managers and policy makers. It provides post-doctoral training opportunities.