Uncertainty in aerosol radiative forcing impacts  the simulated global monsoon in the 20th century

Shonk, Jonathan K. P.; Turner, Andrew G.; Chevuturi, Amulya; Wilcox, Laura J.; Dittus, Andrea J.; Hawkins, Ed

doi:https://doi.org/10.5194/acp-20-14903-2020

Articles | Volume 20, issue 23

https://doi.org/10.5194/acp-20-14903-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The Aerosol Chemistry Model Intercomparison Project...

https://doi.org/10.5194/acp-20-14903-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 23

Research article

|

03 Dec 2020

Research article |

| 03 Dec 2020

Uncertainty in aerosol radiative forcing impacts the simulated global monsoon in the 20th century

Jonathan K. P. Shonk, Andrew G. Turner, Amulya Chevuturi, Laura J. Wilcox, Andrea J. Dittus, and Ed Hawkins

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Final revised paper (published on 03 Dec 2020)
Preprint (discussion started on 23 Jun 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Review of Shonk et al.', Anonymous Referee #2, 23 Jul 2020
RC2: 'review of Shonk et al', Anonymous Referee #1, 31 Aug 2020
AC1: 'Response to Reviewers' Comments', Jon Shonk, 19 Oct 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Jon Shonk on behalf of the Authors (19 Oct 2020) Author's response Manuscript

ED: Publish as is (23 Oct 2020) by Hailong Wang

AR by Jon Shonk on behalf of the Authors (28 Oct 2020)

Short summary

We use a set of model simulations of the 20th century to demonstrate that the uncertainty in the cooling effect of man-made aerosol emissions has a wide range of impacts on global monsoons. For the weakest cooling, the impact of aerosol is overpowered by greenhouse gas (GHG) warming and monsoon rainfall increases in the late 20th century. For the strongest cooling, aerosol impact dominates over GHG warming, leading to reduced monsoon rainfall, particularly from 1950 to 1980.