主讲人简介:
明毅博士1998年毕业于清华大学(化学工程和环境工程双学位),2003年取得普林斯顿大学土木和环境工程博士学位。从2003至今,美国海洋大气管理局地球流体力学实验室(U.S. National Oceanic and Atmospheric Administration/Geophysical Fluid Dynamics Laboratory, GFDL),大气物理和气候研究组组长,负责全球气候模式的研究与开发。明毅博士还任教于普林斯顿大学大气海洋科学系(Program in Atmospheric and Oceanic Sciences)。明毅博士在气溶胶对全球和区域气候的影响方面做出了开创性的工作,因此获得美国总统青年科学家奖(美国政府表彰年青科学家的最高荣誉),世界气象组织 Norbert Gerbier-MUMM国际奖,和美国气象协会Henry Houghton奖。在国际一流期刊(包括Science)上发表论文五十余篇。
讲座简介:
Coupled climate models project future changes to rainfall in the African Sahel ranging from severe drying to severe wettening. Atmosphere-only models perturbed with uniform ocean surface warming span a similar range, motivating study of the simpler latter problem in order to constrain the more societally relevant former one. We analyze four comprehensive atmospheric models developed at the NOAA Geophysical Fluid Dynamics Laboratory, which respond to uniform ocean surface warming of 2 K with Sahel wet season rainfall changes ranging from -38 to +15%. A detailed MSE budget analysis reveals the relative importance of different processes in determining the response.
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