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INTERNATIONAL SYMPOSIUM ON SNOW AND AVALANCHES
CO-SPONSORED BY
Swiss Federal Institute for Snow and Avalanche Research (SLF)
PROGRAMME OF SESSIONS
Corrections will be posted outside the Sanada auditorium each day.
Numbers in the third column refer to abstract numbers
Sessions will take place in the International Congress Centre,
Promenade 92, CH-7270 Davos-Platz, Switzerland
SUNDAY 1 JUNE 2003
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17:00-19:00 |
REGISTRATION (International Congress Centre, Congress Hall) |
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18:00-19:00 |
ICEBREAKER (International Congress Centre, Foyer C1) |
MONDAY, 2 JUNE 2003
Opening of Symposium
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08:30 | Dr Atsumu Ohmura (Vice President, IGS) |
Dr Walter Ammann (Chairman, Local Organizing Committee) |
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Dr Paul Föhn (Chief Editor) |
Session 1: Physical snow properties
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08:50 U. Leeman and M. Albert 3 Snow microstructure and permeability in the near-surface core at a potential deep drilling site in West Antarctica | |||
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09:10 J.R. Blackford, B.A. Marmo and C.E. Jeffree 74 Low temperature scanning electron microscopy of snow | |||
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09:30 J. Schweizer, G. Michot and H.O.K. Kirchner 41 On the fracture toughness of snow | |||
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09:50 E.C.J. Hendriks, J.W. Greuell, J. Oerlemans, W. Knap and P. Stammes 129 Anisotropy of the reflected radiation on a snow surface: ground measurements and simulation |
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10:10 |
Refreshments |
Session 2: Avalanche formation
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10:40 S. Senthil and P. Mahajan 18 Avalanche initiation: a finite element study | |||
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11:00 P. Chernouss, E. Mokrov, Y. Fedorenko, E. Husebye and E. Beketova 132 Effect of explosions on snow stability on mountain slope | |||
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11:20 A. Mishra, D.N. Sethi and A. Upadhyay 21 A failure criterion of snow on the basis of time to failure and its validation at critical strain-rate | |||
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11:40 M. Zaiser 29 Slab avalanche release viewed as interface fracture in a random medium | |||
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12:00 U. Gruber, P. Hägeli, D.M. McClung and E. Manners 26 Large-scale snow instability patterns in western Canada: first analysis of the CAA-InfoEx database 1991-2002 |
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12:20 |
Lunch |
Session 3: Snow cover
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14:00 S.A. Sokratov and M. Schneebeli 109 Thermophysical and microstructural evolution of snow during temperature gradient metamorphism | |||
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14:20 F. Flin, J.-B. Brzoska, B. Lesaffre, C. Coléou and R.A. Pieritz 123 3-D geometric measurements of snow micro-structural evolution under isothermal conditions | |||
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14:40 T. Yamamoto, K. Matsuoka and R. Naruse 50 Observation of internal structures of snow covers with a ground-penetrating radar | |||
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15:00 P.A. Waldner, M. Stähli, M. Lehning, M. Schneebeli and M. Schwikowski 126 Modelling ionic transport in a layered subalpine snow cover with the model SNOWPACK | |||
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15:20 V.N. Golubev and S.A. Sokratov 133 Regular packing of grains as a model of snow structure |
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15:40 |
Refreshments |
Session 4: Avalanche processes
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16:10 C. McCollister, K. Birkeland and K. Hansen 91 Exploring the spatial variability of hard slab and dry loose avalanches, Jackson Hole, Wyoming, U.S.A. | |||
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16:30 J. Porhemmat and B. Saghafian 8 Evaluation of spatial resolution of satellite data on snow cover estimates | |||
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16:50 R. Rice, Jr and R.A. Decker 28 Using unsteady hydraulic analogs to model waves, and short lived peak velocities and peak impact loads associated with snow avalanches | |||
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17:10 Ph. Berthet-Rambaud, J.-M. Taillandier, A. Limam, J. Mazars and L. Daudeville 43 Characterising the action of a snow avalanche through the analysis of metal target's behaviour | |||
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17:30 A. Bouchet, M. Naaim, H. Bellot and F. Ousset 66 Experimental study of dense snow avalanches: velocity profiles in quasi-permanent and fully-developed flows |
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TUESDAY, 3 JUNE 2003
Session 5: Snow drifting and blowing snow
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08:30 R. Bintanja 15 The mass balance of a dry snow surface during snow storm | |||
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08:50 J.N. McElwaine, N. Maeno and K. Sugiura 92 The splash function for snow from wind-tunnel measurements | |||
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09:10 K. Nishimura and M. Nemoto 52 Blowing snow at Mizuho station, Antarctica | |||
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09:30 A. Ghinoi and C.-J.F. Chung 36 Topography-driven snow avalanche susceptibility | |||
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09:50 T. Sato, K. Kosugi and A. Sato 122 Development of saltation layer of drifting snow |
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10:10 |
Refreshments |
Session 6: Avalanche-risk management
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10:40 D.M. McClung 19 Return period of avalanches far into the runout zone | |||
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11:00 F. Rapin, M. Meunier and R. Bolognesi 117 New method for classification of avalanche paths with risks | |||
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11:20 J.-P. Navarre, J. Roulle and J.M. Panel 78 Automatic seismic detection of natural avalanches: operational running, analysis and recognition of signals and results | |||
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11:40 S. Margreth and W.J. Ammann 102 Hazard scenarios for avalanche actions on bridges |
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12:00 |
Lunch |
Session 7: Snow properties and measurement
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14:00 R. Fortin, N.K. Sinha and F. Anctil 127 Characterization of the microstructure of snow with TDR | |||
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14:20 A.K. Singh and V. Deo 136 PC based data acquisition system for thermal conductivity measurement of snow | |||
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14:40 R.A. Pieritz, J.-B. Brzoska, F. Flin, B. Lesaffre and C. Coléou 80 From snow X-ray microtomograph raw volume data to micromechanics modeling: first results |
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15:00 |
Refreshments |
Poster Session 1. Short presentations
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15:30 R.V. Engeset, H.-C. Udnæs, O.E. Tveito, E.J. Førland, K. Isaksen, Z. Mengistu and N.R. Raabel 5 A statistical–physical snow model: daily point simulations for Norway 1961-2002 | |||
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15:32 J. Oerlemans and E.J. Klok 7 Effect of summer snowfall on glacier mass balance | |||
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15:34 N.A. Kazakov 11 Fractal dimension of the snow cover texture | |||
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15:36 B. Boutillier, F. Nicot, J. Meyssonnier, O. Gagliardini and F. Darve 16 Snow creep: application to a snowpack in interaction with a flexible supporting structure | |||
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15:38 E. Hestnes and S. Bakkehøi 20 Slushflow hazard prediction and warning | |||
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15:40 R. Kor and A. Ganju 22 Mapping and forecasting of avalanches in western Himalaya using GIS | |||
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15:42 S. Rasmus and M. Lehning 24 SNOWPACK model validation in Finland: sensitivity and parameterisation | |||
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15:44 Y. Durand, G. Guyomarc'h, L. Mérindol and J.G. Corripio 25 2-D numerical modelling of surface wind velocity and associated snow drift effects over complex mountainous orography | |||
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15:46 J. Schönbein, C. Schneider and R. Roth 31 Snow cover variability in German Low Mountain ranges under the influence of climate change | |||
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15:48 C. Huggel, A. Kääb, N. Salzmann, W. Haeberli, A. Polkvoj, I. Zotikov and N. Osokin 32 Remote sensing and GIS-based models for rock and ice avalanches and their application to the 20 September 2002 rock/ice avalanche at Kolka glacier (North Osetia, Russian Caucasus) | |||
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15:50 Yu.B. Andreev and L.A. Sukhanov 37 The comparison of risk assessment based on empirical probability zoning model (Russia) and some statistical models by West European researchers for avalanche encounter probability | |||
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15:52 A. Felber, J. Heierli, J. Kowalski and R.S. Purves 38 What do the results of nearest neighbours models mean in avalanche forecasting? | |||
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15:54 A. Cagnati and 11 others 39 The microwave alpine snow melting experiment (MASMEX 2002) | |||
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15:56 A. Cagnati, M. Valt, R. Casacchia and R. Salvatori 40 Physical and morphological features of snowcover surface layers in Antarctica | |||
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15:58 R. Nitta 44 Insight to snow and avalanche considering disturbances to forest growth | |||
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16:00 E. Alfnes, L.M. Andreassen, R.V. Engeset, T. Skaugen and H.-C. Udnæs 45 Temporal variability in snow distribution | |||
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16:02 K. Rikiishi and J. Sakakibara 46 Seasonal changes of the snow cover extent in the former Soviet Union as seen from the historical snow-depth observations | |||
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16:04 M. Barbolini, F. Cappabianca and F. Savi 48 Risk assessment in avalanche prone areas | |||
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16:06 H. Hirashima, E. Baba, A. Hachikubo, K. Nishimura and M. Lehning 51 SNOWPACK model calculations of snow in Hokkaido, Japan | |||
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16:08 I. Takei and N. Maeno 54 Mechanical vibration responses of snow samples near the melting temperature | |||
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16:10 K. Sugiura, T. Ohata and D. Yang 57 Particle size near the snow surface in drifting snow with periods of inactivity in the Arctic, Barrow, Alaska | |||
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16:12 P. Mathur and V.D. Mishra 58 Determination of snow-cover characteristics using a reflectance model measured from satellite remote sensing and ground based spectral information | |||
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16:14 A. Mishra and P. Mahajan 59 A new constitutive law for snow taking into account the volumetric changes under different confinements | |||
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16:16 B.C. Johnson and B. Jamieson 60 Investigations into remotely triggered slab avalanches | |||
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16:18 T. Oksanen 61 Observed changes in snow cover properties during last 50 years in Finland | |||
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16:20 E. Kärkäs 63 The surface snow properties in western Dronning Maud Land, Antarctica | |||
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16:22 T. Faug, M. Naaim and F. Naaim-Bouvet 64 Experimental and numerical study of granular flow and fence interaction | |||
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16:24 I. Moner and 7 others 67 Cartographic Avalanche Forecasting (CAF): a GIS-supported aid and representation tool | |||
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16:26 J.N. McElwaine 69 Calculation of two-dimensional avalanche velocities from opto-electronic sensors | |||
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16:28 R. Molina and 7 others 70 Using vegetation to characterize the avalanche of Canal del Roc Roig, Vall de N·ria (eastern Pyrenees, Spain) | |||
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16:30 A. Zeidler and B. Jamieson 73 A nearest neighbor model for forecasting skier-triggered dry slab avalanches on persistent weak layers in the Columbia Mountains of Canada | |||
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16:32 E. Muntán, L. Andreu, P. Oller, E. Gutiérrez and P. Martínez 75 Dendrochronological study of the avalanche path Canal del Roc Roig: first results of the ALUDEX project in the Pyrenees | |||
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16:34 T. Skaugen, E. Alfnes, E.G. Langsholt and H.-C. Udnæs 81 Time variant snow distribution for use in hydrological models |
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16:40 |
POSTERS |
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WEDNESDAY, 4 JUNE 2003
Session 8: Snow and ice
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08:30 B. Jamieson and C. Fierz 33 Heat flow from wet to dry snowpack layers and associated faceting | |||
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08:50 Y. Ito, K. Nishimura, Y. Nohguchi, K. Izumi, O. Abe and K. Kosugi 90 Airflow measurements in the snow avalanche flow | |||
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09:10 J. Pomeroy, R. Essery and B. Toth 71 Implications of spatial distributions of snow mass and melt rate on snowcover depletion: observations in a sub-Arctic mountain catchment | |||
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09:30 F. Obleitner and M. Lehning 128 Measurements and simulations of snow and superimposed ice at the Kongsvegen glacier, Svalbard | |||
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09:50 P. Etchevers and 22 others 79 Validation of the surface energy budget simulated by several snow models (SNOWMIP project) |
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10:10 |
Refreshments |
Session 9: Snow properties and avalanche formation
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10:40 P. Hägeli and D.M. McClung 14 Hierarchy theory as a conceptual framework for scale issues in avalanche forecasting modeling | |||
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11:00 K. Kronholm and M. Schneebeli 103 Micromechanical properties in snow layers on a small slope | |||
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11:20 C. Roeger, D. McClung and R. Stull 42 Verified combination of numerical weather and avalanche prediction models at Kootenay Pass, British Columbia, Canada | |||
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11:40 K. Birkeland, K. Kronholm, M. Schneebeli and C. Pielmeier 27 Temporal changes in the shear strength and hardness of a buried surface hoar layer |
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12:00 |
Lunch |
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13:30 - 19:00 |
EXCURSION |
Bus drive to Flüelpass (permafrost) |
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20:00 |
Meeting for members of IGS Council |
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THURSDAY, 5 JUNE 2003
Session 10: Snow-cover monitoring and remote sensing
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08:30 N. Foppa, S. Wunderle, A. Hauser, D. Oesch and F. Kuchen 53 Operational subpixel snow mapping over the Alps with NOAA-AVHRR data | |||
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08:50 K. Rikiishi, E. Hashiya and M. Imai 47 Linear trends of the length of snow cover season in the Northern Hemisphere as observed by the satellites in recent 28 years | |||
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09:10 M. Sturm and C. Benson 142 Contrasts in the spatial heterogeneity of perennial and seasonal snow layers | |||
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09:30 S. Rasmus, J. Räisänen and M. Lehning 23 Estimating snow conditions in Finland in the late 21st century using the SNOWPACK model with regional climate scenario data as input | |||
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09:50 R. Essery and J. Pomeroy 77 Implications of spatial distributions of snow mass and melt rate on snowcover depletion: theoretical considerations |
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10:10 |
Refreshments |
Session 11: Snow cover and meltwater
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10:40 M. Stacheder, S. Schlager, A. Brandelik and M. Norgren 150 A new in-situ sensor for large-scale snow cover monitoring: I. Principle, design, and air gap correction | |||
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11:00 C.E. Bøggild 100 Melt water retention in seasonal snow at the Greenland ice sheet margin | |||
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11:20 I. Meirold-Mautmer and M. Lehning 105 Measurements and model calculations of the solar shortwave fluxes in snow on Summit/Greenland |
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11:40 |
International Glaciological Society AGM - agenda as PDF file |
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12:00 |
Lunch |
Session 12: Avalanche-risk management
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14:00 T. Arnalds, K. Jónasson and S. Sigurdsson 72 Avalanche hazard zoning in Iceland based on individual risk | |||
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14:20 M. Bründl, C. Klingler, M. Steiniger, J. Rhyner and W. Ammann 93 IFKIS — managing avalanche risk in settlements and on roads | |||
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14:40 D. Issler and 11 others 49 Simulations of observed dry-snow avalanches in the full-scale test site Ryggfonn, Norway |
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15:00 |
Refreshments |
Poster Session 2. Short presentations
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15:30 H. ólafsson, M. de Vries, S.H. Haraldsdóttir and M.M. Magnússon 83 Observations of accumulation of snow in the central Icelandic highlands | |||
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15:32 K. Izumi, S. Kobayashi, M. Nemoto, K. Yano, Y. Endo and Y. Ohzeki 84 Snow avalanche accidents in Japan for the past one hundred years (1900–1999) | |||
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15:34 K. Hiramatsu 85 Snow crystals in the classroom | |||
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15:36 T. Glazovskaya, Y. Seliverstov and E. Troshkina 86 Snow avalanches of Russian Caucasus | |||
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15:38 H. Cara 87 Disposition model for avalanche starting zones. Studies in the Drau catchment, South Tyrol | |||
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15:40 S. Yamaguchi, A. Sato and M. Lehning 88 Application of the numerical snowpack model (SNOWPACK) to the wet snow region in Japan | |||
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15:42 S. Bethke, M. Lehning and H. Rhyner 97 Predicting snow conditions for the optimisation of ski racing equipment and piste preparation | |||
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15:44 A. Casteller, V. Stoeckli and R. Villalba 99 Evaluation of dendroecological methods to recon-struct temporal and spatial patterns of avalanche events in undocumented mountainous areas | |||
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15:46 T. Exner, J.D. Rüedi, M. Connolly and M. Lehning 104 A wind tunnel for investigations of the natural snow cover: first results on sublimation rates and thresholds for drifting snow | |||
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15:48 S. Fuchs, M. Bründl and J. Stötter 106 Multitemporal risk assessment for avalanche hazards: results from settlements in Grisons, Switzerland | |||
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15:50 G. Spreitzhofer, C. Fierz and M. Lehning 108 SN_GUI: a graphical user interface for snowpack modeling | |||
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15:52 R. Meister 111 Snow climate and avalanche activity in Davos — the 20th century overview | |||
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15:54 M. Schneebeli 113 Numerical simulation of elastic stress in the microstructure of snow | |||
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15:56 K. Kosugi, T. Sato and A. Sato 115 Dependence of drifting snow saltation lengths on snow surface hardness | |||
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15:58 T. Ozeki, K. Kose, T. Haishi and K. Nishimura 116 Three-dimensional observation of depth hoar layer by NMR imaging | |||
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16:00 Li Jun and H.J. Zwally 118 Modeling the density variation in the shallow firn layer | |||
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16:02 C. Scapozza, F. Bucher, P. Amann, W. Ammann and P. Bartelt 120 The temperature and density dependent acoustic emission response of snow in axial shear tests | |||
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16:04 N. Imanishi, T. Moriya, T. Yamada and K. Nishimura 121 Observations of the seismic signals associated with snow avalanches | |||
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16:06 M. Ishizaka 124 Climatic response of snow depth at heavy snowfall areas in Japan to recent warmer winter seasons | |||
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16:08 H. Grimsdóttir and D.M. McClung 125 Avalanche risk management in backcountry skiing operations | |||
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16:10 K. Rasmus and S. Rasmus 130 Snow albedo measurements during ablation period in Finnish tundra | |||
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16:12 P. Chernouss and B. Kozelov 131 LAVINA-2 - a computer-assisted work place for avalanche forecaster | |||
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16:14 F. Pellicciotti, B. Brock, U. Strasser, P. Burlando, M. Funk and J. Corripio 134 An enhanced, albedo accounting, temperature-index melt model for distributed application | |||
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16:16 S. Kolberg 135 Updating and validation of snow routines with remotely sensed snow cover data | |||
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16:18 J. Faillettaz and F. Louchet 137 Possible reasons for the scale invariance of avalanche starting zone sizes | |||
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16:20 J. Faillettaz, F. Louchet, B. Chareyre and D. Daudon 138 Snow toughness measurements: a challenge? | |||
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16:22 O. Bruland 139 Snow distribution mapping and modeling | |||
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16:24 O. Abe 140 Shear strength of snow layers including graupel | |||
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16:26 J. Rhyner and 6 others 144 Avalanche warning Switzerland: consequences of the avalanche winter 1999 | |||
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16:28 M. Stähli, M. Stacheder, D. Gustafsson, A. Brandelik and M. Schneebeli 145 A new in-situ sensor for large-scale snow cover monitoring: II. Field test | |||
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16:30 D. Gustafsson, M. Stähli and R. Meister 146 Use of flat-band snow sensor data in a snowmelt run-off model | |||
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16:32 M. Fauve and H. Rhyner 147 Physical description of the snowmaking process using the jet technique and properties of the produced snow | |||
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16:34 A.S. Blanco 149 Avalanches in Finland: recent observations and experiences from forecasting |
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16:40 |
POSTERS |
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19:30 |
BANQUET (Theatre Hall) |
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FRIDAY, 6 JUNE 2003
Session 13: Snow-cover modelling
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08:30 S.H. Haraldsdóttir, H. ólafsson, Y. Durand, G. Giraud and L. Mérindol 82 A system for prediction of avalanche hazard in the windy climate of Iceland | |||
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08:50 M. Lehning, C. Fierz, B. Brown and B. Jamieson 95 Modelling instability for the snow cover model SNOWPACK | |||
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09:10 P. Bartelt and O. Buser 98 The principle of minimum entropy production and snow structure | |||
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09:30 C. Fierz, P. Etchevers, R. Jordan, M. Lehning, Y. Lejeune and E. Martin 107 SnowMIP, an intercomparison of snow models: comparison of detailed snow-cover simulations | |||
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09:50 T. Keller, C. Pielmeier, C. Rixen, F. Gadient, D. Gustafsson and M. Stähli 114 Impact of artificial snow and ski slope grooming on snow pack properties and soil thermal regime in a sub-alpine area |
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10:10 |
Refreshments |
Session 14: Snowdrifting and avalanches
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10:40 M. Nemoto, K. Nishimura, S. Kobayashi and K. Izumi 56 Numerical study of time development and its relevance to spatial development in drifting snow | |||
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11:00 C. Jaedicke, F. Naaim and M. Granig 76 Snow drift around avalanche defense structures | |||
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11:20 A.N. Bozhinskiy 13 The Monte-Carlo simulation of avalanche-type processes | |||
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11:40 S.P. Pudasaini, Y. Wang and K. Hutter 17 Dynamics of avalanches along general mountain slopes |
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12:00 |
Lunch |
Session 15: Avalanches
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14:00 J. étienne, P. Saramito and E.J. Hopfinger 30 Numerical simulations of dense clouds on steep slopes: application to powder-snow avalanches | |||
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14:20 A.S.T. Jones and B. Jamieson 1 Statistical avalanche-runout estimation for short slopes in Canada | |||
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14:40 F. Naaim-Bouvet, M. Naaim and T. Faug 65 Dense and powder avalanches around obstacles: dissipation processes | |||
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15:00 B. Turnbull, R. Straub and P. Bartelt 110 Modelling mixed snow avalanches in Aulta, Galtür and Vallée de la Sionne | |||
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15:20 M. Kern and F. Tiefenbacher 148 On the velocity structure of the shear layer in snow avalanches |
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15:40 |
Refreshments |
Session 16: Avalanches, ice and permafrost
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16:10 P. Gauer and D. Issler 141 Possible erosion mechanisms in snow avalanches | |||
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16:30 P. Sampl and T. Zwinger 143 Avalanche simulation with SAMOS | |||
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16:50 W. Haeberli, C. Huggel, A. Kääb, A. Polkvoj, I. Zotikov and N. Osokin 34 The Kolka-Karmadon rock/ice slide of 20 September 2002: an extraordinary event of historical dimensions in North Osetia (Russian Caucasus) | |||
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17:10 M. Luetschg, W. Haeberli and V. Stoeckli 94 Permafrost occurrence in avalanche slopes: field measurements and numerical modelling |
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17:30 |
Closing |
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