Implementation of aerosol–cloud interactions ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
URL permanente :
Titre :
Implementation of aerosol–cloud interactions in the regional atmosphere–aerosol model COSMO-MUSCAT(5.0) and evaluation using satellite data
Auteur(s) :
Dipu, Sudhakar [Auteur]
Leipziger Institut für Meteorologie [LIM]
Quaas, Johannes [Auteur]
Leipziger Institut für Meteorologie [LIM]
Wolke, Ralf [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Stoll, Jens [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Mühlbauer, Andreas [Auteur]
Sourdeval, Odran [Auteur]
Leipziger Institut für Meteorologie [LIM]
Salzmann, Marc [Auteur]
Leipziger Institut für Meteorologie [LIM]
Heinold, Bernd [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Tegen, Ina [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Leipziger Institut für Meteorologie [LIM]
Quaas, Johannes [Auteur]
Leipziger Institut für Meteorologie [LIM]
Wolke, Ralf [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Stoll, Jens [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Mühlbauer, Andreas [Auteur]
Sourdeval, Odran [Auteur]
Leipziger Institut für Meteorologie [LIM]
Salzmann, Marc [Auteur]
Leipziger Institut für Meteorologie [LIM]
Heinold, Bernd [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Tegen, Ina [Auteur]
Leibniz Institute for Tropospheric Research [TROPOS]
Titre de la revue :
Geoscientific Model Development
Nom court de la revue :
Geosci. Model Dev.
Numéro :
10
Pagination :
2231-2246
Éditeur :
Copernicus GmbH
Date de publication :
2017-06-20
ISSN :
1991-9603
Discipline(s) HAL :
Planète et Univers [physics]/Océan, Atmosphère
Résumé en anglais : [en]
The regional atmospheric model Consortium for Small-scale Modeling (COSMO) coupled to the Multi-Scale Chemistry Aerosol Transport model (MUSCAT) is extended in this work to represent aerosol–cloud interactions. Previously, ...
Lire la suite >The regional atmospheric model Consortium for Small-scale Modeling (COSMO) coupled to the Multi-Scale Chemistry Aerosol Transport model (MUSCAT) is extended in this work to represent aerosol–cloud interactions. Previously, only one-way interactions (scavenging of aerosol and in-cloud chemistry) and aerosol–radiation interactions were included in this model. The new version allows for a microphysical aerosol effect on clouds. For this, we use the optional two-moment cloud microphysical scheme in COSMO and the online-computed aerosol information for cloud condensation nuclei concentrations (Cccn), replacing the constant Cccn profile. In the radiation scheme, we have implemented a droplet-size-dependent cloud optical depth, allowing now for aerosol–cloud–radiation interactions. To evaluate the models with satellite data, the Cloud Feedback Model Intercomparison Project Observation Simulator Package (COSP) has been implemented. A case study has been carried out to understand the effects of the modifications, where the modified modeling system is applied over the European domain with a horizontal resolution of 0.25° × 0.25°. To reduce the complexity in aerosol–cloud interactions, only warm-phase clouds are considered. We found that the online-coupled aerosol introduces significant changes for some cloud microphysical properties. The cloud effective radius shows an increase of 9.5 %, and the cloud droplet number concentration is reduced by 21.5 %.Lire moins >
Lire la suite >The regional atmospheric model Consortium for Small-scale Modeling (COSMO) coupled to the Multi-Scale Chemistry Aerosol Transport model (MUSCAT) is extended in this work to represent aerosol–cloud interactions. Previously, only one-way interactions (scavenging of aerosol and in-cloud chemistry) and aerosol–radiation interactions were included in this model. The new version allows for a microphysical aerosol effect on clouds. For this, we use the optional two-moment cloud microphysical scheme in COSMO and the online-computed aerosol information for cloud condensation nuclei concentrations (Cccn), replacing the constant Cccn profile. In the radiation scheme, we have implemented a droplet-size-dependent cloud optical depth, allowing now for aerosol–cloud–radiation interactions. To evaluate the models with satellite data, the Cloud Feedback Model Intercomparison Project Observation Simulator Package (COSP) has been implemented. A case study has been carried out to understand the effects of the modifications, where the modified modeling system is applied over the European domain with a horizontal resolution of 0.25° × 0.25°. To reduce the complexity in aerosol–cloud interactions, only warm-phase clouds are considered. We found that the online-coupled aerosol introduces significant changes for some cloud microphysical properties. The cloud effective radius shows an increase of 9.5 %, and the cloud droplet number concentration is reduced by 21.5 %.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
CNRS
Collections :
Date de dépôt :
2023-01-06T14:12:46Z
2023-01-11T14:19:23Z
2023-01-12T13:03:09Z
2023-01-11T14:19:23Z
2023-01-12T13:03:09Z
Fichiers
- Dipu-2017aa.pdf
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