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Improving of Cloud classification from passive remote sensing using active remote sensing from W band

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Academic year: 2022

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Improving of Cloud classification from passive remote sensing using active remote sensing from W band"

The GEO software which is developed by the SAFNWC (https://www.nwcsaf.org/), uses radiatif transfert model to retreive the cloud properties. GEO is

constrained by operational objectives such, retreive cloud's properties in less than 4 minutes every 15 minutes, thus simples assumptions on clouds' physic are used (homogeneity, look up tables).

However, it has been hilighted that properties of hydrometeors such ice

crystals density and number concentration vary with temperature and altitude (Fontaine et al., 2020 & 2014, Heymsfield et al., 2010, Field et al., 2007).

The objectif is to includes the variability of clouds microphysics as function of temperature, with the help of measurment of space and in-situ radar in W band. This, in order to improve retreival of clouds' properties using

observations from geostationnary satellites.

Contact: emmanuel.fontaine@meteo.fr, pascal.brunel@meteo.fr

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