Extended Abstracts from the MAP Meeting in Appenzell 1999

Session I: Upper Troposheric Features (Project P2)

• Alexia C. Massacand and Huw C. Davies Interannual variations of upper-tropospheric flow and Alpine precipitation
• René Fehlmann and Christian Quadri Predictability issues of heavy Alpine south-side precipitation
• J. van Baelen, J. Stein and O. Bousquet Observational and numerical study of an Alpine cut-off-low(Pdf-file 1.569 kB)
• Klaus P. Hoinka, Gerhard Ehret and Joel Stein Water vapour measured by an airborne DIAL in a potential vorticity streamer
• V. Wirth What can water vapour satellite images teach us about the structure of an incident upper tropospheric PV anomaly?

Session II: Orographic Precipitation (Project P1)

• A. Buzzi, and L. Foschini Mesoscale meteorological features and characteristics of precipitation fields in simulations of MAP episodes (Pdf-file 1.095 kB)
• C. Cacciamani, D. Cesari, F. Grazzini, and T. Paccagnella Results from simulation of flood cases with mesoscale data-assimilation techniques within HERA project
• Stephanie Cosma, Evelyne Richard, and Fabien Miniscloux The role of small-scale orographic features in the spatial distribution of precipitation
• Fabrizio Nerozzi, Chiara Marsigli, Tiziana Paccagnella, Andrea Montani, Paolo Patruno,Franco Molteni, and Roberto Buizza High-resolution ensemble prediction system with a limited area model
• R. Benoit , H. Davies, C. Schär, P. Binder, S. Chamberland, M. Desgagné, C. Girard, D. Lüthi, D. Maric, E. Müller, P. Pellerin, J. Schmidli, M. Sprenger, S. Willemse, and E. Zala Realtime ultrafinescale modelling effort for the MAP field phase
• R. Rotunno, and R. Ferretti Role of a mesoscale convective vortex in the 1994 Piedmont Flood
• Alexander Gohm, and Georg J. Mayr An idealized numerical sensitivity study of the orographically induced south Ticino flood (Pdf-file 183 kB)
• M. Miglietta, and A. Buzzi Study of moist flow over an isolated 3-d topography with a mesoscale model (Pdf-file 159 kB)
• Martin Hagen The Alpine radar composite (Pdf-file 54 kB)
• Sabine Goeke, and Eszter Barthazy Microphysics of orographic precipitation
• Michel Chong, Jean-François Georgis, Viviane Gouget and Frank Roux Real-time multi-Doppler analyses of Ronsard and Monte-Lema radars data during the MAP SOP

Session III: Hydrology (Project P3)

• Keil, Benoit, Chamberland, Desgagné, Yau High resolution NWP simulation of summertime convective events in the Northern Alpine region
• Stefan Taschner, Ralf Ludwig, and Wolfram Mauser Water balance and flood modelling in a prealpine catchment (Pdf-file 58 kB)
• K. Jasper, P. Kaufmann, P. Binder, J. Gurtz, and H. Lang Runoff simulation and forecasting by coupling of meteorological and hydrological models
• Cassardo C.,Balsamo G. P., Cacciamani C., Cesari D., Longhetto A., Paccagnella T., Pelosini R. Initialization of soil parameters in LAM: CLIPS experiment (Pdf-file 66 kB)
• Balsamo G. P., Cacciamani C., Cassardo C., Cesari D., Gandini D., Paccagnella T., and Pelosini R. Simulation of the flash flood on 4-5 September 1998 in the Maggiore lake area (Piedmont, Italy) (Pdf-file 392 kB)

Session IV: Gap flow and Foehn (Project P4 and P5)

• Johannes Vergeiner, and Georg Mayr Measurements in and around the Wipp valley (Pdf-file 126 Kb Pdf-file 23 kB)
• R. Banta, and R.M. Hardesty Investigating gap flows in the Brenner Pass using Doppler Lidar
• J. Egger Gap winds in the Himalayan Kali Gandaki valley
• Günther Zaengl Three-dimensional gravity waves and their relation to gap flow(Postscript-file 886 Kb Postscript-file 1586 kB)
• Stefan Gubser, Sabine von Hünerbein, and Hans Richner The atmospheric boundary layer during Foehn events: Removal of the cold air lakes and flow splitting

Session V: PV banners (Project P7)

• Christoph Schär Can the Bernoulli function serve the observational analysis of PV banners? (Pdf-file 460 kB)
• Simon Vosper Drag and vortex shedding in strongly-stratified flows past orography
• Julian Hunt, H. Olafssonand P. Bougeault Coriolis effects over mountains on the scale of the Alps
• Michael Sprenger, Natascha Kljun, and Christoph Schär The interaction of a front with the Alps: A case study using the ALPEX reanalysis data set

Session VI: MAP SOP Operations

• Philippe Bougeault The MAP-SOP decision process
• Jim Moore The pre-IOP and IOP timeline
• Richard Dirks MAP-IOP alert and notification strategy
• Jim Moore and Richard Dirks The MAP field catalogue: overview and capabilities

Session VII: Gravity Wave Breaking (Project P6)

• Q. Jiang, and R. B. Smith A two-layer model of mountain wave-breaking
• Adrian S. Broad Gravity wave momentum fluxes and surface pressure drags due to the Pyrenees: Variation with numerical model horizontal resolution
• Glenn Shutts Effects of directional wind shear on orographic gravity waves
• A. V. Coals, and S. D. Mobbs Numerical modelling of gravity waves in moist air flow over orography
• James D. Doyle Aspect of gravity wave breaking predictability
• M. Georgelin An upper level precursor of gravity wave breaking

Session VIII: Planetary Boundary Layer (Project P8)

• S. D. Mobbs, and S. B. Vosper Interaction between gravity waves and the boundary layer over orography
• Rudolf O. Weber Near surface Flow Patterns over Switzerland
• Markus Furger, Johannes Keller, Lionel P. Poggio, and André S. H. Prévôt Atmospheric boundary layer structure in a deep valley during VOTALP 96
• S. Nyeki, M. Kalberer, U. Baltensperger, I. Colbeck, M. Furger, M. Lugauer, and E. Weingartner Development of the planetary boundary layer height over mountainous terrain: a temporal study of airborne lidar transects
• Dino Zardi , Roberto Gerola, and Marco Tubino A hydrodynamic model for up-valley winds

From Poster Sessions

• P. Alberoni, S. Costa, C. Cacciamani, V. Levizzani Operational implementation of LAPS: a tool for MAP POC (Pdf-file 85 Kb )
• Marc Wueest, W. Schmid Improving Single-Doppler Wind Retrievals with Secondary Wind Field Data (Pdf-file 1.157 Kb )
• Francois Gheusi, and Joel Stein Air-parcel tracking in an Eulerian model (Pdf-file 737 Kb )
• Heinke Kröger, Petra Seibert and Gerhard Wotawa Orographic effects of the Alps on dispersion and its representation in Lagrangian particle models (Pdf-file 143 Kb )
• S. Marchesi, S. Morelli, and M. Stortini Impact of modified resolutions on the numerical simulations of Vaison-la-Romaine flash-flood (Pdf-file 86 Kb )
• M. Menziani, S. Pugnaghi, S. Vincenzi, and L. Pilan Solution of the diffusion equation applied to data collected in a natural drying soil (Pdf-file 121 Kb )
• S. Pugnaghi, M. Menziani, S. Vincenzi, and L. Pilan Planning and preliminary activity for soil moisture measurements during next MAP SOP/IOP (Pdf-file 177 Kb )
• S.Davolio, and M.Fantini Semigeostrophic modeling of orographic cyclones (Pdf-file 196 Kb )
• T.Exner, and G. J.Mayr The south Foehn of March 3 1999 - portraits by MC2 and observations (Pdf-file 137 Kb )