Aerosol–radiation–cloud interactions in a regional coupled  model: the effects of convective parameterisation and resolution

Archer-Nicholls, Scott; Lowe, Douglas; Schultz, David M.; McFiggans, Gordon

doi:10.5194/acp-16-5573-2016

Articles | Volume 16, issue 9

https://doi.org/10.5194/acp-16-5573-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

South AMerican Biomass Burning Analysis (SAMBBA)

https://doi.org/10.5194/acp-16-5573-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 9

Research article

|

04 May 2016

Research article |

| 04 May 2016

Aerosol–radiation–cloud interactions in a regional coupled model: the effects of convective parameterisation and resolution

Scott Archer-Nicholls, Douglas Lowe, David M. Schultz, and Gordon McFiggans

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Cumulative views and downloads (calculated since 13 Oct 2015)

Month	HTML	PDF	XML	Total
Oct 2015	133	79	11	223
Nov 2015	35	34	9	78
Dec 2015	16	10	6	32
Jan 2016	35	8	2	45
Feb 2016	25	5	1	31
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Jun 2016	34	28	1	63
Jul 2016	29	18	4	51
Aug 2016	20	15	0	35
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Oct 2025	39	30	2	71
Nov 2025	22	17	0	39

Latest update: 18 Nov 2025

Short summary

The response of the Weather Research and Forecasting model with Chemistry to forcings by biomass burning aerosol were investigated in high-resolution nested domains over Brazil. The aerosol-layer was found to have a negative direct effect at the top of the atmosphere, but this was largely cancelled by a semi-direct effect which inhibited afternoon cloud formation. The cloud response to the aerosol was found to be highly sensitive to model resolution and the use of convective parameterisation.