The effect of aerosol on surface cloud radiative forcing in the Arctic
Cloud radiative forcing is a very important concept to understand what kind of role the clouds play in climate change with thermal effect or albedo effect. In spite of that much progress has been achieved, the clouds are still poorly described in the climate models. Due to the complex aerosol-cloud-...
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ftcopernicus:oai:publications.copernicus.org:acpd4199 2023-05-15T13:10:46+02:00 The effect of aerosol on surface cloud radiative forcing in the Arctic Hu, R.-M. Blanchet, J.-P. Girard, E. 2018-08-09 application/pdf https://doi.org/10.5194/acpd-5-9039-2005 https://www.atmos-chem-phys-discuss.net/acpd-2005-0043/ eng eng doi:10.5194/acpd-5-9039-2005 https://www.atmos-chem-phys-discuss.net/acpd-2005-0043/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acpd-5-9039-2005 2019-12-24T09:59:04Z Cloud radiative forcing is a very important concept to understand what kind of role the clouds play in climate change with thermal effect or albedo effect. In spite of that much progress has been achieved, the clouds are still poorly described in the climate models. Due to the complex aerosol-cloud-radiation interactions, high surface albedo of snow and ice cover, and without solar radiation in long period of the year, the Arctic strong warming caused by increasing greenhouse gases (as most GCMs suggested) has not been verified by the observations. In this study, we were dedicated to quantify the aerosol effect on the Arctic cloud radiative forcing by Northern Aerosol Regional Climate Model (NARCM). Major aerosol species such as Arctic haze sulphate, black carbon, sea salt, organics and dust have been included during our simulations. By inter-comparisons with the Atmospheric Radiation Measurement (ARM) data, we find surface cloud radiative forcing (SCRF) is −22 W/m 2 for shortwave and 36 W/m 2 for longwave. Total cloud forcing is 14 W/m 2 with minimum of −35 W/m 2 in early July. If aerosols are taken into account, the SCRF has been increased during winter while negative SCRF has been enhanced during summer. Our estimate of aerosol forcing is about −6 W/m 2 in the Arctic. Text albedo Arctic black carbon Climate change Copernicus Publications: E-Journals Arctic |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
Cloud radiative forcing is a very important concept to understand what kind of role the clouds play in climate change with thermal effect or albedo effect. In spite of that much progress has been achieved, the clouds are still poorly described in the climate models. Due to the complex aerosol-cloud-radiation interactions, high surface albedo of snow and ice cover, and without solar radiation in long period of the year, the Arctic strong warming caused by increasing greenhouse gases (as most GCMs suggested) has not been verified by the observations. In this study, we were dedicated to quantify the aerosol effect on the Arctic cloud radiative forcing by Northern Aerosol Regional Climate Model (NARCM). Major aerosol species such as Arctic haze sulphate, black carbon, sea salt, organics and dust have been included during our simulations. By inter-comparisons with the Atmospheric Radiation Measurement (ARM) data, we find surface cloud radiative forcing (SCRF) is −22 W/m 2 for shortwave and 36 W/m 2 for longwave. Total cloud forcing is 14 W/m 2 with minimum of −35 W/m 2 in early July. If aerosols are taken into account, the SCRF has been increased during winter while negative SCRF has been enhanced during summer. Our estimate of aerosol forcing is about −6 W/m 2 in the Arctic. |
format |
Text |
author |
Hu, R.-M. Blanchet, J.-P. Girard, E. |
spellingShingle |
Hu, R.-M. Blanchet, J.-P. Girard, E. The effect of aerosol on surface cloud radiative forcing in the Arctic |
author_facet |
Hu, R.-M. Blanchet, J.-P. Girard, E. |
author_sort |
Hu, R.-M. |
title |
The effect of aerosol on surface cloud radiative forcing in the Arctic |
title_short |
The effect of aerosol on surface cloud radiative forcing in the Arctic |
title_full |
The effect of aerosol on surface cloud radiative forcing in the Arctic |
title_fullStr |
The effect of aerosol on surface cloud radiative forcing in the Arctic |
title_full_unstemmed |
The effect of aerosol on surface cloud radiative forcing in the Arctic |
title_sort |
effect of aerosol on surface cloud radiative forcing in the arctic |
publishDate |
2018 |
url |
https://doi.org/10.5194/acpd-5-9039-2005 https://www.atmos-chem-phys-discuss.net/acpd-2005-0043/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic black carbon Climate change |
genre_facet |
albedo Arctic black carbon Climate change |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acpd-5-9039-2005 https://www.atmos-chem-phys-discuss.net/acpd-2005-0043/ |
op_doi |
https://doi.org/10.5194/acpd-5-9039-2005 |
_version_ |
1766241806464319488 |