Satellite Observations of Precipitating ...
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Article dans une revue scientifique: Article original
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Title :
Satellite Observations of Precipitating Marine Stratocumulus Show Greater Cloud Fraction for Decoupled Clouds in Comparison to Coupled Clouds
Author(s) :
Goren, Tom [Auteur]
Rosenfeld, Daniel [Auteur]
Sourdeval, Odran [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Quaas, Johannes [Auteur]
Rosenfeld, Daniel [Auteur]
Sourdeval, Odran [Auteur]
![refId](/themes/Mirage2//images/idref.png)
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Quaas, Johannes [Auteur]
Journal title :
Geophysical Research Letters
Abbreviated title :
Geophys. Res. Lett.
Volume number :
45
Pages :
5126-5134
Publisher :
American Geophysical Union (AGU)
Publication date :
2018-05-17
ISSN :
0094-8276
English abstract : [en]
This study examines the relationships between marine stratocumulus clouds (MSC) coupling
state with the ocean surface, their precipitation rate and fractional cloud cover (CF). This was possible by developing a novel ...
Show more >This study examines the relationships between marine stratocumulus clouds (MSC) coupling state with the ocean surface, their precipitation rate and fractional cloud cover (CF). This was possible by developing a novel methodology for satellite retrieval of the clouds coupling state. Decks of overcast MSC were reported in previous studies to break up often as their precipitation rate increases significantly, thus reducing CF and cloud radiative effect substantially. Here we show that decks of precipitating decoupled MSC have larger CF compared to similarly precipitating coupled MSC. The difference in CF between decoupled and coupled clouds was found to increase with precipitation rate, up to nearly doubling the CF of the heaviest precipitating decoupled MSC. This suggests that decoupling is a feature related to higher cloud radiative effect in precipitating MSC.Show less >
Show more >This study examines the relationships between marine stratocumulus clouds (MSC) coupling state with the ocean surface, their precipitation rate and fractional cloud cover (CF). This was possible by developing a novel methodology for satellite retrieval of the clouds coupling state. Decks of overcast MSC were reported in previous studies to break up often as their precipitation rate increases significantly, thus reducing CF and cloud radiative effect substantially. Here we show that decks of precipitating decoupled MSC have larger CF compared to similarly precipitating coupled MSC. The difference in CF between decoupled and coupled clouds was found to increase with precipitation rate, up to nearly doubling the CF of the heaviest precipitating decoupled MSC. This suggests that decoupling is a feature related to higher cloud radiative effect in precipitating MSC.Show less >
Peer reviewed article :
Oui
Audience :
Non spécifiée
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Collections :
Research team(s) :
Interactions Rayonnement Nuages (IRN)
Submission date :
2023-01-06T12:46:42Z
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