Evidence for Changes in Arctic Cloud Phase ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
URL permanente :
Titre :
Evidence for Changes in Arctic Cloud Phase Due to Long‐Range Pollution Transport
Auteur(s) :
Coopman, Quentin [Auteur]
1294|||Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA] (VALID)
Riedi, Jerome [Auteur]
1294|||Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA] (VALID)
Finch, D. P. [Auteur]
University of Edinburgh [Edin.]
Garrett, Timothy J. [Auteur]
University of Utah
1294|||Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA] (VALID)
Riedi, Jerome [Auteur]
1294|||Laboratoire d’Optique Atmosphérique - UMR 8518 [LOA] (VALID)
Finch, D. P. [Auteur]
University of Edinburgh [Edin.]
Garrett, Timothy J. [Auteur]
University of Utah
Titre de la revue :
Geophysical Research Letters
Nom court de la revue :
Geophysical Research Letters
Numéro :
45
Éditeur :
American Geophysical Union (AGU)
Date de publication :
2018-10-10
Discipline(s) HAL :
Planète et Univers [physics]/Océan, Atmosphère
Résumé en anglais : [en]
Reduced precipitation rates allow pollution within air parcels from midlatitudes to reach the Arctic without being scavenged. We use satellite and tracer transport model data sets to evaluate the degree of supercooling ...
Lire la suite >Reduced precipitation rates allow pollution within air parcels from midlatitudes to reach the Arctic without being scavenged. We use satellite and tracer transport model data sets to evaluate the degree of supercooling required for 50% of a chosen ensemble of low‐level clouds to be in the ice phase for a given meteorological regime. Our results suggest that smaller cloud droplet effective radii are related to higher required amounts of supercooling but that, overall, pollution plumes from fossil fuel combustion lower the degree of supercooling that is required for freezing by approximately 4 °C. The relationship between anthropogenic plumes and the freezing transition temperature from liquid to ice remains to be explained.Lire moins >
Lire la suite >Reduced precipitation rates allow pollution within air parcels from midlatitudes to reach the Arctic without being scavenged. We use satellite and tracer transport model data sets to evaluate the degree of supercooling required for 50% of a chosen ensemble of low‐level clouds to be in the ice phase for a given meteorological regime. Our results suggest that smaller cloud droplet effective radii are related to higher required amounts of supercooling but that, overall, pollution plumes from fossil fuel combustion lower the degree of supercooling that is required for freezing by approximately 4 °C. The relationship between anthropogenic plumes and the freezing transition temperature from liquid to ice remains to be explained.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
CNRS
Collections :
Équipe(s) de recherche :
Interactions Rayonnement Nuages (IRN)
Date de dépôt :
2024-01-09T17:32:56Z
2024-01-09T17:59:05Z
2024-02-23T13:23:27Z
2024-02-27T08:33:21Z
2024-04-16T14:46:39Z
2024-01-09T17:59:05Z
2024-02-23T13:23:27Z
2024-02-27T08:33:21Z
2024-04-16T14:46:39Z
Fichiers
- Geophysical Research Letters - 2018 - Coopman - Evidence for Changes in Arctic Cloud Phase Due to Long%E2%80%90Range Pollution.pdf
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