Impact of anthropogenic aerosols on Arctic amplification in a long-term future climate using a climate model

Jun Ono; Manabu Abe; Hiroaki Tatebe; Yoshiki Komuro

Presentation information

[J] Poster

A (Atmospheric and Hydrospheric Sciences ) » A-CG Complex & General

[A-CG52] Science in the Arctic Region

Thu. May 29, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

convener:Tatsuya Kawakami(Hokkaido University), Masatake Hori(University of Tokyo, Atmosphere Ocean Research Institute), Kazuki Yanagiya(Japan Aerospace Exploration Agency), Yota Sato(Japan Agency for Marine-Earth Science and Technology)

5:15 PM - 7:15 PM

[ACG52-P12] Impact of anthropogenic aerosols on Arctic amplification in a long-term future climate using a climate model

*Jun Ono¹, Manabu Abe², Hiroaki Tatebe², Yoshiki Komuro² (1.National Institute of Polar Research, 2.Japan Agency for Marine-Earth Science and Technology)

Keywords:Arctic amplification, low-emission scenarion, anthropogenic aerosols, ice-albedo feedback

To assess the impact of anthropogenic aerosols on the Arctic amplification (AA), we conducted two climate simulations with 10-member ensembles for SSP1-2.6 and SSP5-8.5. This study fixed emissions of anthropogenic sulfur dioxide, a key precursor to anthropogenic aerosols, at 2015 levels for both scenarios. Even with fixed aerosol emissions, AA could still be enhanced in a low-emission scenario, and energy budget analysis suggests that ice-albedo feedback is the primary factor, which aligns with the findings of our previous study.