报告题目：Re-assessing the Role of Forests in Climate Change and Water Security

报  告 人：李百炼  教授

邀  请 人： 陈  杰   教授

时      间： 2024年10月8日（星期二）下午4:00

地      点： 水资源国重大楼A区202会议室

报告人简介：

2015获普利高津金奖（Prigogine Gold Medal，该奖每年只表彰一位对世界生态学做出卓越贡献的科学家，他是全球第12位获奖人），2022获卓越创新奖；“生态复杂性”这一新生态学分支学科的奠基人，美国加利福尼亚大学河滨分校生态学终身教授，国际生态与可持续发展研究中心主任，美国农业部-中国科技部农业生态与可持续发展联合研究中心共同主任；《Ecological Complexity》(Elsevier)创刊主编，《Journal of Arid Land》(Springer Nature)联合创刊主编；美国人类生态研究院院士 (IHE Fellow)，俄罗斯科学院外籍院士，美国科学促进会会士(AAAS Fellow)，德稻生态学大师，世界生态高峰理事会(EcoSummit)主席。在包括Nature、Science、PNAS 等权威性学术刊物发表论文300 余篇，Google Scholar截至2023年底的H指数=61。还在国内担任了如中国科协海智专家、中国科学院名誉所长及相关政府和机构的首席生态顾问、讲席或名誉教授和学术委员会主任等职。

报告简介：

I will present an entirely new view of what may be driving dynamics in the atmosphere, which our group has been working for the last 20 years. We examine and advance a theory as to how condensation influences atmospheric pressure through the mass removal of water from the gas phase with a simultaneous account of the latent heat release. Building from fundamental physical principles we show that condensation is associated with a decline in air pressure in the lower atmosphere. We then estimate the horizontal pressure differences associated with water vapor condensation and find that these are comparable in magnitude with the pressure differences driving observed circulation patterns. The water vapor delivered to the atmosphere via evaporation represents a store of potential energy available to accelerate air and thus drive winds. Our estimates suggest that the global mean power at which this potential energy is released by condensation is around one per cent of the global solar power – this is similar to the known stationary dissipative power of general atmospheric circulation. We conclude that condensation and evaporation merit attention as major, if previously overlooked, factors in driving atmospheric dynamics.

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