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          Institute: MPI für Meteorologie     Collection: Atmosphere in the Earth System     Display Documents



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ID: 223492.0, MPI für Meteorologie / Atmosphere in the Earth System
Estimating the PPH-bias for simulations of convective and stratiform clouds
Authors:Bäuml, Georg; Chlond, Andreas; Roeckner, Erich
Language:English
Date of Publication (YYYY-MM-DD):2004-11
Title of Journal:Atmospheric Research
Journal Abbrev.:Atmos. Res.
Volume:72
Issue / Number:1-4
Start Page:317
End Page:328
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:The plane parallel homogeneous (PPH) approximation is known to generate systematic errors in the computation of reflectivity and transmissivity of a horizontally inhomogeneous cloud field. This PPH-bias is determined for two cloud fields, a stratocumulus and a shallow convective cloud scene, which have been simulated using a cloud resolving model. The independent column approximation has been applied as reference and a PPH analogue has been interpolated from the original cloud data. In order to correct for the bias the effective thickness approach (ETA) has been employed. For the two cloud simulations, the corresponding reduction factors have been determined
Free Keywords:radiative transfer; inhomogeneous clouds; PPH bias; effective thickness approach; BOUNDARY-LAYER CLOUDS; STRATOCUMULUS; MODEL; PARAMETERIZATION; RADIATION; TRADE
External Publication Status:published
Document Type:Article
Communicated by:Carola Kauhs
Affiliations:MPI für Meteorologie/Atmosphere in the Earth System
MPI für Meteorologie/Climate Processes (-2005)/Boundary Layer Processes
Identifiers:ISI:000225625000017
ISSN:0169-8095
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