Advances in Geosciences www.adv-geosci.net 1680-7340 1680-7359 10 Observation, Prediction and Verification of Precipitation (EGU Session 2006) 2007 10.5194/adgeo-10-159-2007 http://www.adv-geosci.net/10/159/2007/ http://www.adv-geosci.net/10/159/2007/adgeo-10-159-2007.html http://www.adv-geosci.net/10/159/2007/adgeo-10-159-2007.pdf 159 165 2007-04-26 Separation of convective and stratiform precipitation for a precipitation analysis of the local model of the German Weather Service I. Langer ines.langer@met.fu-berlin.de E. Reimer Institute for Meteorology, Free University of Berlin, Germany An improved independent precipitation data set with the horizontal resolution of 7×7 km grid over central Europe was generated (Free University of Berlin (FUB)-precipitation analysis). For scale dependent evaluation of the Local model (LM) of the German Weather service, the precipitation data were separated into convective and stratiform fractions. To analyse precipitation amounts an interpolation scheme is used which contains the data set of "present weather" (ww), rain gauges and cloud types from the WMO-network in hourly resolution from the year 1992 until 2004 together with satellite cloud types derived from Meteosat-7 data. The structural analyses of cloud classes from satellite data as well as clouds from the synoptic observations were used to develop a statistical interpolation procedure to build up an independent precipitation analysis in resolution corresponding to the LM grid. Bennartz, R. and Michelson, D.: Correlation of precipitation estimates from spaceborne passive microwave sensors and weather radar imagery for BALTEX, Int. J. Rem. Sens., 24, 723–739, 2003. Berger, F. H.: Die Bestimmung des Einfusses von hohen Wolken auf das Strahlungsfeld und das Klima durch Analyse von NOAA AVHRR-Daten, Dissertation, Institut für Meteorologie, Freie Universität Berlin, Wiss. Met. Abh., Neue Folge Serie A 6, 3, 1992. Cheng, M. and Brown, R.: Delineation of precipitation areas by correlation of METEOSAT visible and infrared data with radar data, Mon. Wea. Rev., 1123, 2743–2757, 1995. Levizzani, V., Schmetz, J., Lutz, H.­J., Kerkman, J., Alberoni, P. P, and Cervino, M.: Precipitation estimations from geostationary orbit and prospects for METEOSAT Second Generation, Meteorol. Appl. 8, 23–41, 2001. Lutz, H.-J., Inoue, T., and Schmetz, J.: Comparison of a split-window and a multi-spectral cloud classification for MODIS observations, J. Meteorol. Soc. Japan, 81, 623–631, 2003. Reimer, E., Oestreich, A., Koslowsky, D., and Langer, I.: Wolken und Niederschlag aus Satellitenmessungen: eine 11­jährige Reihe für das Elbe­Einzugsgebiet, Poster zur 6 DKT in Potsdam vom 22.9–25.9.03., 2003. Reimer, E. and Scherer, B. : An operational meteorological diagnostic system for regional air pollution analysis and long-term modelling, in: Air Pollution Modelling and it Applications IX., edited by: van Doop, H., Plenum Press., 1992. Rosenow, W., Güldner, J., and D. Spänkuch: The "satellite Weather" of the German Weather Service­an assimilation procedure with a spectral component, Proceedings of the 2001 EUMETSAT Data Users Conference, 541–545, 2001. Schmetz, J., Pili, P., Tjemkes, S., Just, D., Kerkmann, J., Rota, S., and Ratier, A.: An introduction to Meteosat Second Generation (MSG), Bull. Amer. Meteorol. Soc., 83, 977–992, 2002. Todd, M. C.: Estimation of daily rainfall over the upper Nile river using a continuously calibrated satellite infrared technique, Meteorol. Appl., 6, 201–210, 1999. Uddstrom, M. and Gray, W.: Satellite cloud classification and rain­rate estimation using multispectral radiances and measures of spatial texture, J. Appl. Meteorol., 35, 839–858, 1996. Vincente, G. A., Scofield, R. A., and Menzel, W. P.: The operational GOES infrared rainfall estimation technique, Bull. Amer. Meteorol. Soc., 79, 1883–1898, 1998. VUB2: Vorschriften und Betriebsunterlagen Nr 2, Wetterschlüsselhandbuch Band A Schlüselform, 1999. Xie, P. and Arkin, P. A.: An intercomparison of gauge observations and satellite estimates of monthly precipitation, J. Appl. Meteorol., 34, 1143–1160, 1995.