Below-cloud scavenging of aerosol by rain: a review of numerical modelling approaches and sensitivity simulations with mineral dust in the Met Office's Unified Model

Jones, Anthony C.; Hill, Adrian; Hemmings, John; Lemaitre, Pascal; Quérel, Arnaud; Ryder, Claire L.; Woodward, Stephanie

doi:https://doi.org/10.5194/acp-22-11381-2022

Articles | Volume 22, issue 17

https://doi.org/10.5194/acp-22-11381-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-11381-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 17

Research article

|

06 Sep 2022

Research article |

| 06 Sep 2022

Below-cloud scavenging of aerosol by rain: a review of numerical modelling approaches and sensitivity simulations with mineral dust in the Met Office's Unified Model

Anthony C. Jones, Adrian Hill, John Hemmings, Pascal Lemaitre, Arnaud Quérel, Claire L. Ryder, and Stephanie Woodward

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Final revised paper (published on 06 Sep 2022)
Supplement to the final revised paper
Preprint (discussion started on 10 Jun 2022)
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Interactive discussion

Status: closed

RC1: 'Comment on acp-2022-409', Anonymous Referee #1, 08 Jul 2022

See attached.

Citation: https://doi.org/10.5194/acp-2022-409-RC1
RC2: 'Comment on acp-2022-409', Anonymous Referee #2, 14 Jul 2022

Please see my comments in the attached PDF document.

Citation: https://doi.org/10.5194/acp-2022-409-RC2
AC1: 'Comment on acp-2022-409', Anthony Jones, 12 Aug 2022

The comment was uploaded in the form of a supplement: https://acp.copernicus.org/preprints/acp-2022-409/acp-2022-409-AC1-supplement.pdf

Citation: https://doi.org/10.5194/acp-2022-409-AC1

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload

AR by Anthony Jones on behalf of the Authors (12 Aug 2022) Author's response Author's tracked changes Manuscript

ED: Publish as is (16 Aug 2022) by Leiming Zhang

AR by Anthony Jones on behalf of the Authors (17 Aug 2022) Author's response

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Short summary

As raindrops fall to the ground, they capture aerosol (i.e. below-cloud scavenging or BCS). Many different BCS schemes are available to climate models, and it is unclear what the impact of selecting one scheme over another is. Here, various BCS models are outlined and then applied to mineral dust in climate model simulations. We find that dust concentrations are highly sensitive to the BCS scheme, with dust atmospheric lifetimes ranging from 5 to 44 d.