Caractérisation multi-échelles de la pluie et des processus associés dans l'Eurorégion Alpes-Méditerranée - De l'observation radar à la prévision

Jean-François Rysman 1
1 SPACE - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : The aim of this thesis is to improve the understanding and forecasting of rainfall small scale variability in the Alps-Mediterranean Euroregion. In this purpose, we used measurements from an X-band, polarimetric and Doppler radar called Hydrix. This radar is located since 2007 at Mont Vial (Nice, France) and continuously measures rainfall since 2009, with a 1 km 2 spatial resolution and a 5 minutes temporal resolution. This database provides useful information to study fine scale space-time variability of rainfall. First, the diurnal and seasonal cycles, as well as rainfall inter-annual variability, are analysed. Then, rainfall scale relationships are spatially and temporally characterised and the processes associated to rainfall at both synoptical and local scales in the region are identified. Finally, a new nowcasting method suitable for a single Doppler radar is evaluated.
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  • HAL Id : tel-01119716, version 1

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Jean-François Rysman. Caractérisation multi-échelles de la pluie et des processus associés dans l'Eurorégion Alpes-Méditerranée - De l'observation radar à la prévision. Météorologie. Université Pierre et Marie Curie, 2013. Français. ⟨tel-01119716⟩

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