Bias in CMIP6 models as compared to observed regional  dimming and brightening

Moseid, Kine Onsum; Schulz, Michael; Storelvmo, Trude; Julsrud, Ingeborg Rian; Olivié, Dirk; Nabat, Pierre; Wild, Martin; Cole, Jason N. S.; Takemura, Toshihiko; Oshima, Naga; Bauer, Susanne E.; Gastineau, Guillaume

doi:https://doi.org/10.5194/acp-20-16023-2020

Articles | Volume 20, issue 24

https://doi.org/10.5194/acp-20-16023-2020

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

https://doi.org/10.5194/acp-20-16023-2020

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

Articles | Volume 20, issue 24

Research article

|

22 Dec 2020

Research article |

| 22 Dec 2020

Bias in CMIP6 models as compared to observed regional dimming and brightening

Kine Onsum Moseid, Michael Schulz, Trude Storelvmo, Ingeborg Rian Julsrud, Dirk Olivié, Pierre Nabat, Martin Wild, Jason N. S. Cole, Toshihiko Takemura, Naga Oshima, Susanne E. Bauer, and Guillaume Gastineau

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Final revised paper (published on 22 Dec 2020)
Preprint (discussion started on 04 Feb 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of “Bias in CMIP6 models compared to observed regional dimming and brightening trends (1961-2014)”', Anonymous Referee #1, 28 Mar 2020
RC2: 'Review of biases in the CMIP6 models compared to observared SDSR', Anonymous Referee #2, 30 Mar 2020
AC1: 'Reply to comments by reviewer #1 and reviewer #2', Kine Onsum Moseid, 31 Aug 2020

Peer-review completion

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

AR by Kine Onsum Moseid on behalf of the Authors (14 Sep 2020) Manuscript

ED: Referee Nomination & Report Request started (03 Oct 2020) by Jui-Yuan Christine Chiu

RR by Anonymous Referee #2 (16 Oct 2020)

ED: Publish subject to minor revisions (review by editor) (18 Oct 2020) by Jui-Yuan Christine Chiu

AR by Kine Onsum Moseid on behalf of the Authors (09 Nov 2020) Author's response Manuscript

ED: Publish as is (09 Nov 2020) by Jui-Yuan Christine Chiu

AR by Kine Onsum Moseid on behalf of the Authors (17 Nov 2020)

Short summary

In this study we compare solar radiation at the surface from observations and Earth system models from 1961 to 2014. We find that the models do not reproduce the so-called global dimming as found in observations. Only model experiments with anthropogenic aerosol emissions display any dimming at all. The discrepancies between observations and models are largest in China, which we suggest is in part due to erroneous aerosol precursor emission inventories in the emission dataset used for CMIP6.