High Sensitivity of Arctic Liquid Clouds to Long‐Range Anthropogenic Aerosol Transport

Coopman, Quentin; Garrett, Timothy J.; Finch, D. P.; Riedi, Jerome

Type de document :

Article dans une revue scientifique: Article original

DOI :

10.1002/2017gl075795

URL permanente :

http://hdl.handle.net/20.500.12210/100037

Titre :

High Sensitivity of Arctic Liquid Clouds to Long‐Range Anthropogenic Aerosol Transport

Auteur(s) :

Coopman, Quentin [Auteur]

1294|||Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA] (VALID)
Garrett, Timothy J. [Auteur]
Finch, D. P. [Auteur]
Riedi, Jerome [Auteur]

1294|||Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA] (VALID)

Titre de la revue :

Geophysical Research Letters

Nom court de la revue :

Geophysical Research Letters

Numéro :

Pagination :

372-381

Éditeur :

American Geophysical Union (AGU)

Date de publication :

2018-01-03

Discipline(s) HAL :

Planète et Univers [physics]/Océan, Atmosphère

Résumé en anglais : [en]

The rate of warming in the Arctic depends upon the response of low‐level microphysical and radiative cloud properties to aerosols advected from distant anthropogenic and biomass‐burning sources. Cloud droplet cross‐section ...
Lire la suite >The rate of warming in the Arctic depends upon the response of low‐level microphysical and radiative cloud properties to aerosols advected from distant anthropogenic and biomass‐burning sources. Cloud droplet cross‐section density increases with higher concentrations of cloud condensation nuclei, leading to an increase of cloud droplet absorption and scattering radiative cross sections. The challenge of assessing the magnitude of the effect has been decoupling the aerosol impacts on clouds from how clouds change solely due to natural meteorological variability. Here we address this issue with large, multi‐year satellite, meteorological, and tracer transport model data sets to show that the response of low‐level clouds in the Arctic to anthropogenic aerosols lies close to a theoretical maximum and is between 2 and 8 times higher than has been observed elsewhere. However, a previously described response of arctic clouds to biomass‐burning plumes appears to be overstated because the interactions are rare and modification of cloud radiative properties appears better explained by coincident changes in temperature, humidity, and atmospheric stability.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS

Collections :

Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518

Équipe(s) de recherche :

Interactions Rayonnement Nuages (IRN)

Date de dépôt :

2024-01-09T17:30:46Z
2024-01-09T18:01:04Z
2024-02-23T13:17:59Z

Fichiers

Geophysical Research Letters - 2017 - Coopman - High Sensitivity of Arctic Liquid Clouds to Long%E2%80%90Range Anthropogenic.pdf
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Main article
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Historique des modifications

Numéro de version	Lien	Date de modification
3	20.500.12210/100037*	2024-02-23T13:15:46Z
2	20.500.12210/100037.2	2024-01-09T18:00:32Z
1	20.500.12210/100037.1	2024-01-09T17:30:46Z

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