Articles | Volume 23, issue 2
Research article
19 Jan 2023
Research article |  | 19 Jan 2023

Hemispheric-wide climate response to regional COVID-19-related aerosol emission reductions: the prominent role of atmospheric circulation adjustments

Nora L. S. Fahrenbach and Massimo A. Bollasina


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2022-558', Anonymous Referee #1, 10 Oct 2022
  • RC2: 'Comment on acp-2022-558', Anonymous Referee #2, 03 Nov 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Nora Fahrenbach on behalf of the Authors (06 Dec 2022)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (08 Dec 2022) by Toshihiko Takemura
RR by Anonymous Referee #2 (02 Jan 2023)
ED: Publish as is (03 Jan 2023) by Toshihiko Takemura
Short summary
We studied the monthly-scale climate response to COVID-19 aerosol emission reductions during January–May 2020 using climate models. Our results show global temperature and rainfall anomalies driven by circulation changes. The climate patterns reverse polarity from JF to MAM due to a shift in the main SO2 reduction region from China to India. This real-life example of rapid climate adjustments to abrupt, regional aerosol emission reduction has large implications for future climate projections.
Final-revised paper