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

An interactive snow hydrology scheme suitable for
incorporating into a general circulation model (GCM). The
algorithm accounts for a prognostic calculation of snow depth
and snow fraction and models the hydrological budget and
energy balance over the snow surface. In addition, the
scheme incorporates the effect of sub-grid-scale variations in
topography with a novel statistical approach.

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

Walland, D.J., and I. Simmonds, 1996: Sub-grid-scale topography
and the simulation of Northern Hemisphere snow cover.
International Journal of Climatology, 16, 961-982.

Walland, D.J., 1996: Snow and its role in climate and climate
variability. Ph.D. thesis, School of Earth Sciences, The
University of Melbourne, 293 pp.

Walland, D.J., and I. Simmonds, 1994: An interactive snow
scheme for a General Circulation Model. Research
Activities in Atmospheric and Oceanic Modelling, Report
No. 19, WMO/TD-No. 592. G. J. Boer, Ed., World
Meteorological Organization, 4.63-4.64.

Walland, D.J., and I. Simmonds, 1997: North American and
Eurasian snow cover co-variability. Tellus, 49A, 503-512.
 
Walland, D.J., and I. Simmonds, 1997: Association between
modes of variability of January Northern Hemisphere snow
cover and circulation. Theoretical and Applied
Climatology, 58, 197-210.

Walland, D.J., and I. Simmonds, 1997: Modelled atmospheric
response to changes in Northern Hemisphere snow cover.
Climate Dynamics, 13, 25-34.