Item: In-Situ Observations and Snowdrift Modeling on Alpine Topography
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Title: In-Situ Observations and Snowdrift Modeling on Alpine Topography
Proceedings: 2002 International Snow Science Workshop, Penticton, British Columbia
Authors:
- G. Guyomarc'h [ Meteo-France, Centre d'Etudes de la Neige (Snow Study Centre) ]
- Y. Durand [ Meteo-France, Centre d'Etudes de la Neige (Snow Study Centre) ]
- L. Merindol [ Meteo-France, Centre d'Etudes de la Neige (Snow Study Centre) ]
Date: 2002
Abstract: Recently, the Snow Study Centre (Meteo-France, CNRM) has begun to develop some new tools for the modeling of snowdrift in order to improve the avalanche hazard forecasting. These works use the results of in-situ studies carried out on an experimental site dedicated to multi-field researches on blowing snow and its consequences on the snow distribution and the increasing of avalanche risk. The current works concern the following axes of development: • Proteon is the first attempt to diagnose the occurrence of snowdrift event depending on the morphological features of the snow grains at the snow pack surface and the corresponding wind velocity threshold. • Sytronl is an operational modeling of snow transported by the wind. This model simulates two aspects of a pass and manages the evolution of the snow pack that undergoes wind effect. • Sytroo2 is an experimental modeling of snowdrift on a limited area (5X5 km). At the same time, we have started to take numerical photographs from pre-determined points on our experimental site. By using an image post-processing, we aim to reproduce over the winter season the snow erosion and accumulation zones in order to verify our modeling approach.
Object ID: issw-2002-590-596.pdf
Language of Article: English
Presenter(s): Unknown
Keywords: snow drifting, alpine experimental site, snowdrift modeling, snow cover distribution
Page Number(s): 590-596
Subjects: in-situ measurements snowdrift model alpine
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