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Prediction of Cirrus Clouds in General Circulation Models

Kärcher, Bernd (2006) Prediction of Cirrus Clouds in General Circulation Models. ECMWF Workshop on Parametrization of Clouds in Large-Scale Models, 2006-11-13 - 2006-11-15, Reading, (UK).

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Abstract

Specific features that distinguish high altitude cirrus from warm and mixed phase clouds are reviewed, along with observational evidence in support of these features. Implications for statistical cloud schemes based on probability distributions of total water are highlighted. A prognostic cloud scheme for non-convective cirrus formed by homogeneous freezing of supercooled aerosols is developed, predicting relative humidity fields and ice cloud properties in good agreement with observations. Uncertainties and future extensions of the cloud scheme are summarised.

Document Type:Conference or Workshop Item (Speech)
Title:Prediction of Cirrus Clouds in General Circulation Models
Authors:
AuthorsInstitution or Email of Authors
Kärcher, BerndUNSPECIFIED
Date:13 November 2006
Keywords:Statistical cloud schemes, cirrus clouds, general circulation models
Event Title:ECMWF Workshop on Parametrization of Clouds in Large-Scale Models
Event Location:Reading, (UK)
Event Type:international Conference
Event Dates:2006-11-13 - 2006-11-15
Organizer:European Centre for Medium-Range Weather Forecasts
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Air Traffic and Weather (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Prof. Bernd Kärcher
Deposited On:21 Jun 2007
Last Modified:27 Apr 2009 13:18

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