 |
| Titel |
Integration of snow management practices into a detailed snow pack model |
| VerfasserIn |
Pierre Spandre, Samuel Morin, Matthieu Lafaysse, Yves Lejeune, Francois Hugues, Emmanuelle George-Marcelpoil |
| Konferenz |
EGU General Assembly 2016
|
| Medientyp |
Artikel
|
| Sprache |
en
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250133764
|
| Publikation (Nr.) |
 EGU/EGU2016-14409.pdf |
|
|
|
|
|
| Zusammenfassung |
| The management of snow on ski slopes is a key socio-economic and environmental issue in
mountain regions. Indeed the winter sports industry has become a very competitive
global market although this economy remains particularly sensitive to weather and
snow conditions. The understanding and implementation of snow management in
detailed snowpack models is a major step towards a more realistic assessment of the
evolution of snow conditions in ski resorts concerning past, present and future climate
conditions.
Here we describe in a detailed manner the integration of snow management processes
(grooming, snowmaking) into the snowpack model Crocus (Spandre et al., Cold
Reg. Sci. Technol., in press). The effect of the tiller is explicitly taken into account
and its effects on snow properties (density, snow microstructure) are simulated
in addition to the compaction induced by the weight of the grooming machine.
The production of snow in Crocus is carried out with respect to specific rules and
current meteorological conditions. Model configurations and results are described
in detail through sensitivity tests of the model of all parameters related to snow
management processes. In-situ observations were carried out in four resorts in the
French Alps during the 2014-2015 winter season considering for each resort natural,
groomed only and groomed plus snowmaking conditions. The model provides realistic
simulations of the snowpack properties with respect to these observations. The main
uncertainty pertains to the efficiency of the snowmaking process. The observed ratio
between the mass of machine-made snow on ski slopes and the water mass used for
production was found to be lower than was expected from the literature, in every
resort. The model now referred to as "Crocus-Resort" has been proven to provide
realistic simulations of snow conditions on ski slopes and may be used for further
investigations.
Spandre, P., S. Morin, M. Lafaysse, Y. Lejeune, H. François and E. George-Marcelpoil,
Integration of snow management processes into a detailed snowpack model, Cold Reg. Sci.
Technol., in press. |
|
|
|
|
|
|