日本地球惑星科学連合2015年大会

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セッション記号 A (大気水圏科学) » A-AS 大気科学・気象学・大気環境

[A-AS21] 大気化学

2015年5月27日(水) 18:15 〜 19:30 コンベンションホール (2F)

コンビーナ:*澤 庸介(気象研究所海洋・地球化学研究部)、竹川 暢之(首都大学東京 大学院理工学研究科)、金谷 有剛(独立行政法人海洋研究開発機構地球環境変動領域)、高橋 けんし(京都大学生存圏研究所)、谷本 浩志(国立環境研究所)

18:15 〜 19:30

[AAS21-P14] KROMEによる化学:非平衡と硫黄安定同位体を考慮した動的な光化学ソルバー

*Sebastian Danielache1 (1.上智大学理工学部物質生命理工学科)

キーワード:古大気, 硫黄同位体

The study of chemical networks of Earth's geological past such as the Archean and Exoplanetary atmospheres requires the resolutions larges number of chemical reactions. This necessity is based on the lack of observational parameters abundant in today's planet Earth or neighbor planets in the solar system. The aim of this work is to construct a planetary atmosphere chemical network solver that relies on a minimal number of observational parameters.
We present here the latest development in our effort to develop such model. Our previous report presented the efficiency of the chemical solver for a large number of chemical species and reaction networks. In this report we present a photochemical dynamic core capable of solving ultraviolet opacities and photo-dissociation reaction rates at each step of the calculation. Additionally the model has been equipped with a set of equations to calculate disequilibrium effects on the chemical network. The stability and robustness of the code has been tested for a large network with more than 500 reactions interlinking more than 40 chemical species. The results obtained so far have been contrasted with the most common chemical codes available in the literature for benchmark.