6. One paragraph description of your model (e.g. abstract from report or
   paper);

CROCUS is a one-dimensional model. The snow cover is represented as 
a pile of layers parallel to the ground. Energy exchanges are projected 
orthogonally to the slope. The model describes the evolution of the 
internal state of the snow cover as a function of meteorological 
conditions. The variables describing the snow cover are temperature, 
density, liquid water content, snow type of each layer. The thickness 
and number of layers are adjusted by the model in order that the 
numerical layers match the natural layers. The model simulate the heat 
conduction, melting/refreezing of snow layers, settlement, metamorphism, 
percolation. The originality of the model is that it simulates the snow 
metamorphism with experimental laws from cold laboratory. The snow 
grains are characterized by their sizes and types. This allows to 
calculate an accurate albedo of the snow cover.

50. Please provide references relevant to the model description and use.

Brun E., Martin E., Simon V., Gendre C., Coleou C. (1989):
"An energy and mass model of snow cover suitable for operational 
avalanche forecasting", J. of Glaciol., Vol 35, N°121, p333-342.

Durand Y., Brun E., Merindol L., Guyomarc'h G., Lesaffre B., Martin E. 
(1993): "A meteorological estimation of relevant parameters for snow 
models", Annals of Glaciol., Vol 18, p 65-71.

Braun L., Brun E., Durand Y., Martin E. Tourasse P (1994) : 
"Simulation of discharge using different method of meteorological data
distribution, basin discretization and snow modelling", 
Nordic Hydrology, Vol 25, NO 1/2, p 129-144.

Martin E., Brun E., Durand Y. (1994) : "Sensitivity of the French Alps 
snow cover to the variation of climatic variables", 
Annales Geophysicae, 12, p 469-477.

Brun E., Durand Y., Martin E., Braun L. (1994) : 
"Snow modelling as an efficient tool to simulate snow cover evolution at 
different spatial scales", IAHS publication n° 223, p 163-176.

Martin E., Timbal B., Brun E. (1997) : "Downscaling of general circulation
models outputs : simulation of the snow climatology of the French Alps.
Sensitivity to climate changes", Climate Dynamics, 13, 45-56.