大气甲烷的源和汇及其浓度的观测模拟研究进展 - 廖宏课题组.PDF

气象科技 进展 大气甲烷的源和汇及其浓度的观测模拟研究进展 张定媛1, 2 廖宏2 （1 中国气象局气象干部培训学院，北京 100081； 2 中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室，北京 100029） 摘要： 甲烷作为仅次于二氧化碳的长寿命温室气体，不仅影响着地球上的辐射平衡，它在大气中的化学反应对大气的氧化清 洁能力和对流层臭氧浓度也起着至关重要的作用。因此，系统全面地研究大气甲烷源汇和分布特征对了解空气质量和气候变 化具有重要的科学意义。从甲烷的源和汇、浓度的观测和模拟几方面介绍了国内外的大气甲烷的研究进展以及存在的问题。 关键词：甲烷，源和汇，观测，模拟 DOI：10.3969/j.issn.2095-1973.2015.01.005 Advances in the Research on Sources and Sinks of CH and Observations and Simulations of CH 4 4 Concentrations Zhang Dingyuan1, 2, Liao Hong2 (1 CMA Training Centre, China Meteorological Administration, Beijing 100081 2 State Key of Laboratory of Atmospheric Boundary Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029) Abstract: As a long-lived anthropogenic greenhouse gas, second only to CO , methane (CH ) influences the radiative balance 2 4 of the Earth. CH also plays a critical role in atmospheric chemistry by affecting the oxidizing capacity of the atmosphere. 4 Consequently, it is important to get a clear understanding of the characteristics of atmospheric CH , especially for the countries 4 where both air quality and climate change are of great concern. In this paper, we have discussed related researches and issues about the sources and sinks, observations and simulations of atmospheric CH . 4 Keyword