Articles | Volume 9, issue 7
https://doi.org/10.5194/amt-9-3145-2016
https://doi.org/10.5194/amt-9-3145-2016
Research article
 | 
20 Jul 2016
Research article |  | 20 Jul 2016

4-D-VAR assimilation of disdrometer data and radar spectral reflectivities for raindrop size distribution and vertical wind retrievals

François Mercier, Aymeric Chazottes, Laurent Barthès, and Cécile Mallet

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Cited articles

Arakawa, A. and Lamb, V. R.: Computational design of the basic dynamical processes of the UCLA general circulation model, Methods in Computational Physics, 17, 173–265, 1977.
Atlas, D., Srivastava, R., and Sekhon, R. S.: Doppler radar characteristics of precipitation at vertical incidence, Rev. Geophys., 11, 1–35, 1973.
Barros, A. P., Prat, O. P., Shrestha, P., Testik, F. Y., and Bliven, L. F.: Revisiting low and list (1982): evaluation of raindrop collision parameterizations using laboratory observations and modeling, J. Atmos. Sci., 65, 2983–2993, 2008.
Barthes, L. and Mallet, C.: Vertical evolution of raindrop size distribution: impact on the shape of the DSD, Atmos. Res., 119, 13–22, 2013.
Beheng, K.: The evolution of raindrop spectra: a review of microphysical essentials, in: Rainfall: State of the Science, edited by: Testik, F. Y., and Gebremichael, M., Wiley Online Library, 29–48, 2010.
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Short summary
The aim of this study is to retrieve vertical profiles of raindrop size distributions and vertical winds from radar and ground measurements. This is crucial to understand the phenomena acting on the raindrops at small scale during their fall and then to be able to merge measurements of rain at different heights and scales (from radar, rain gauges, satellites etc.). It could also help to improve the treatment of radar data and to better parameterize rain in numerical weather prediction models.