ADGEO Advances in Geosciences ADGEO Adv. Geosci. 1680-7359 Copernicus Publications Göttingen, Germany 10.5194/adgeo-7-237-2006 Impact of the assimilation of conventional data on the quantitative precipitation forecasts in the Eastern Mediterranean Mazarakis N. 1 Kotroni V. 1 Lagouvardos K. 1 Music S. 2 Nickovic S. 2 3 National Observatory of Athens, Institute of Environmental Research and Sustainable Development, Athens, Greece Euro-Mediterranean Centre on Insular Coastal Dynamics, University of Malta, Valletta, Malta now at: World Meteorological Organization, Geneva, Switzerland 14 03 2006 7 237 242 Copyright: © 2006 N. Mazarakis et al. 2006 This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Generic License. To view a copy of this licence, visit https://creativecommons.org/licenses/by-nc-sa/2.5/ This article is available from https://adgeo.copernicus.org/articles/7/237/2006/adgeo-7-237-2006.html The full text article is available as a PDF file from https://adgeo.copernicus.org/articles/7/237/2006/adgeo-7-237-2006.pdf

This study is devoted to the evaluation of the role of assimilation of conventional data on the quantitative precipitation forecasts at regional scale. The conventional data included surface station reports as well as upper air observations. The analysis was based on the simulation of 15 cases of heavy precipitation that occurred in the Eastern Mediterranean. The verification procedure revealed that the ingestion of conventional data by objective analysis in the initial conditions of BOLAM limited area model do not result in a statistically significant improvement of the quantitative precipitation forecasts.