CMIP6地球工程模式比较计划(GeoMIP)概况与评述

Short commentary on CMIP6 Geoengineering Model Intercomparison Project(GeoMIP)

太阳辐射管理地球工程是应对气候变化的备用措施。地球工程模式比较计划(GeoMIP)是第六次国际耦合模式比较计划(CMIP6)的重要组成部分。GeoMIP设计了一系列理想化地球工程试验,包括直接减少太阳辐射强度、向平流层注入硫酸盐气溶胶、向海表上空云层注入气溶胶凝结核、增加海水反照率等。在GeoMIP的统一模拟框架下开展地球工程模拟试验,进一步揭示了不同地球工程措施对全球气候的影响和作用机理,从而帮助我们更好地认知气候系统对地球工程的响应过程。更多的中国气候模式参加GeoMIP将提升我国在地球工程研究和国际气候谈判中的国际影响力和话语权。

Solar geoengineering has been proposed as a backup method to mitigate anthropogenic climate change.Geoengineering Model Intercomparison Project(GeoMIP)is one of the key component of the sixth phase of Coupled Model Inter-comparison Project(CMIP6).GeoMIP designed a set of idealized solar geoengineering schemes,including reduction of solar irradiance,injection of sulfate aerosols into the stratosphere,injection of sea slat aerosol into marine low cloud,and increase of ocean albedo.Analysis of GeoMIP results improves our understanding of the climate system response to different solar geoengineering approaches and the underlying mechanisms.More climate models from China are encouraged to participate GeoMIP to improve China’s influence on the research of geoengineering as well as international climate negotiation.