Separating radiative forcing by aerosol–cloud interactions and rapid cloud adjustments in the ECHAM–HAMMOZ aerosol–climate model using the method of partial radiative perturbations

Mülmenstädt, Johannes; Gryspeerdt, Edward; Salzmann, Marc; Ma, Po-Lun; Dipu, Sudhakar; Quaas, Johannes

doi:https://doi.org/10.5194/acp-19-15415-2019

Articles | Volume 19, issue 24

https://doi.org/10.5194/acp-19-15415-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-15415-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 24

Research article

|

17 Dec 2019

Research article |

| 17 Dec 2019

Separating radiative forcing by aerosol–cloud interactions and rapid cloud adjustments in the ECHAM–HAMMOZ aerosol–climate model using the method of partial radiative perturbations

Johannes Mülmenstädt, Edward Gryspeerdt, Marc Salzmann, Po-Lun Ma, Sudhakar Dipu, and Johannes Quaas

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Final revised paper (published on 17 Dec 2019)
Preprint (discussion started on 17 Jan 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'separating contributions to AC', Steven J Ghan, 23 Jan 2019
- AC2: 'Response to Reviewer #1', Johannes Mülmenstädt, 10 Jun 2019
RC2: 'Referee Review', Anonymous Referee #2, 14 Feb 2019
- AC1: 'Response to Reviewer #2', Johannes Mülmenstädt, 10 Jun 2019

Peer-review completion

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

AR by Johannes Mülmenstädt on behalf of the Authors (08 Jul 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (11 Aug 2019) by Xiaohong Liu

RR by Anonymous Referee #3 (02 Sep 2019)

ED: Publish subject to minor revisions (review by editor) (12 Sep 2019) by Xiaohong Liu

AR by Johannes Mülmenstädt on behalf of the Authors (22 Sep 2019) Author's response Manuscript

ED: Publish as is (23 Sep 2019) by Xiaohong Liu

AR by Johannes Mülmenstädt on behalf of the Authors (14 Oct 2019)

Short summary

The effect of aerosol–cloud interactions (ACIs) on Earth's energy budget continues to be highly uncertain. We decompose the effective radiative forcing by ACIs (ERF_aci) into the instantaneous forcing due to anthropogenic increases in the number of cloud droplets and fast responses of cloud properties to the droplet number perturbation in the ECHAM–HAMMOZ aerosol–climate model. This decomposition maps onto the IPCC's Fifth Assessment Report analysis of ERF_aci more directly than previous work.