Articles | Volume 15, issue 21
https://doi.org/10.5194/acp-15-12231-2015
https://doi.org/10.5194/acp-15-12231-2015
Research article
 | 
04 Nov 2015
Research article |  | 04 Nov 2015

The radiative impact of desert dust on orographic rain in the Cévennes–Vivarais area: a case study from HyMeX

C. Flamant, J.-P. Chaboureau, P. Chazette, P. Di Girolamo, T. Bourrianne, J. Totems, and M. Cacciani

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Cited articles

Alpert, P., Kishcha, P., Shtivelman, A., Krichak, S. O., and Joseph, J. H.: Vertical distribution of Saharan dust based on 2.5 year model predictions, Atmos. Res.,70, 109–130, 2004.
Aoshima, F., Behrendt, A., Bauer, H.-S., and Wulfmeyer, V.: Statistics of convection initiation by use of Meteosat rapid scan data during the Convection and Orographically-induced Precipitation Study (COPS), Meteorol. Z., 17, 921–930, 2008.
Barkan, J., Alpert, P., Kutiel, H., and Kishcha, P.: Synoptics of dust transportation days from Africa toward Italy and central Europe, J. Geophys. Res., 110, D07208, https://doi.org/10.1029/2004JD005222, 2005.
Bechtold, P., Bazile, E., Guichard, F., Mascart, P., and Richard, E.: A mass flux convection scheme for regional and global models, Q. J. Roy. Meteor. Soc., 127, 869–886, 2001.
Behrendt, A., Pal, S., Aoshima, F., Bender, M., Blyth, A., Corsmeier, U., Cuesta, J., Dick, D., Dorninger, M., Flamant, C., Di Girolamo, P., Gorgas, T., Huang, Y., Kalthoff, K., Khodayar, S., Mannstein, H., Trümner, K., Wieser, A., and Wulfmeyer, V.: Observation of Convection Initiation Processes with a Suite of State-of-the-Art Research Instruments during COPS IOP8b, Q. J. Roy. Meteor. Soc., 137, 81–100, 2011.
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We analyze the direct radiative impact of an intense African dust plume on orographic precipitation in the western Mediterranean in the fall of 2012 using high-resolution simulations from a convection permitting mesoscale model validated against measurements acquired during the first special observation period of HyMeX. We show that the dust's direct radiative effect in such a dynamical environment is not sufficient to impact 24h of accumulated rainfall over the Cevennes in the dust simulation.
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