初期地球大気における有機物エアロゾル：気候安定性・大気進化に対する役割

関根 康人; 小林 潤平; 洪 鵬

doi:10.14862/geochemproc.61.0_62

Abstracts of Annual Meeting of the Geochemical Society of Japan

Session ID : 1E10

DOI https://doi.org/10.14862/geochemproc.61.0_62

Conference information

Host: Abstracts of Annual Meeting of the Geochemical Society of Japan

Organic aerosol on early Earth: its role for climate stability and atmospheric evolution

*Yasuhito Sekine, Jumpei Kobayashi, Peng Hong

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Keywords: atmospheric evolution, organic aerosol, climate stability, atmospheric chemistry, planetary science

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

It is suggested that early Earth's atmosphere contained a substantial amount of methane. In such a reducing atosphere, organic aerosols would have been formed by solar UV and high energy particle irradiations. We investigate the formation rate and optical properties of organic aerosols by performing laboratory experiments. On the basis of the experimental results, we discuss the role of organic aerosol for climate stability and atmospheric evolution of early Earth.

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