短寿命大气污染物与长寿命温室气体的相互作用及其区域气候效应

短寿命大气污染物（臭氧和细颗粒物）和长寿命温室气体（二氧化碳）都是辐射活性物种，并且三者之间存在很强的耦合关系，其相互影响机理和辐射气候效应还不十分清楚，开展臭氧-细颗粒物-二氧化碳的相互作用及其对区域气候影响的研究具有重要的科学意义。本项目的重点在于改进和完善区域气候-化学-生态耦合模式RegCM4-Chem-YIBs，提高区域细颗粒物、臭氧和二氧化碳浓度模拟、相互作用机理认识以及辐射气候效应定量评估的能力；探讨臭氧-细颗粒物-二氧化碳相互影响的机理，评估臭氧、细颗粒物、二氧化碳对东亚季风气候的协同贡献；分析臭氧和细颗粒物对东亚季风强弱的不同响应，预测未来全球气候变化和区域温室气体排放对短寿命大气污染物的影响，为区域大气污染防治和气候变化应对提供科学基础和理论依据。

Short-lived species，such as ozone and fine particles, and green-house gas, such as (carbon dioxide) are radiaitve species in the atmosphere. The three species are coupled each other. The mechanism of interactions among the three species and their radiative climate effect not clear. It is of great scientific importance to conduct a study on the interactions among the three species as well as their impact on regional climate. This project aims to improve the regional climate-chemistry-vegetation coupled model RegCM4-Chem-YIBs, enhancing the ability on simulating the spatial and temporal distribution of fine particles, ozone and carbon dioxide as well as their interactions and radiative climate effect; investigate the mechanism on ozone-fine particle-carbon dioxide interaction, evaluating their combined effects on East Asia Monsoon, analyze the response of fine particles and ozone to strong and weak East Asia Monsoon, predict future global climate change and regional greenhous emission on short-lived air pollutiants, providing a scientific foundation and a theoretical basis for regional air pollution prevention and climate change response.