A review of recent studies using chemistry-climate models

Hideharu Akiyoshi

Presentation information

[J] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS09] Stratosphere-troposphere Processes And their Role in Climate

Fri. May 26, 2023 10:45 AM - 12:00 PM 201A (International Conference Hall, Makuhari Messe)

convener:Masakazu Taguchi(Aichi University of Education), Nawo Eguchi(Research Institute for Applied Mechanics, Kyushu University), Masashi Kohma(Department of Earth and Planet Science, Graduate School of Science, The University of Tokyo), Shunsuke Noguchi(Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University), Chairperson:Masashi Kohma(Department of Earth and Planet Science, Graduate School of Science, The University of Tokyo)

10:45 AM - 11:00 AM

[AAS09-06] A review of recent studies using chemistry-climate models

★Invited Papers

*Hideharu Akiyoshi^1,2 (1.National Institute for Environmental Studies, 2.RIKEN)

Keywords:chemistry-climate model, ozone, ODS, GHG, solar proton event, volcanic eruption

The chemistry-climate model (CCM) is now widely used to investigate the relationship and interaction between atmospheric chemistry and climate. Recent studies using CCMs on the middle-atmosphere chemistry and climate associated with ozone-layer variation are briefly reviewed and discussed. The main topics of this talk are ozone-science results from the Chemistry Climate Model Initiative (CCMI), ozone depleting substance (ODS) and greenhouse gas (GHG) dependences of the Arctic and Antarctic column ozone based on large-ensemble simulations representing the year-to-year variation of the mid- and high-latitude atmosphere, and ozone and NOx variations caused by solar proton events and volcanic eruptions. The research perspective associated with these topics is also given.