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

Treatment of snow in the Mosaic LSM satisfies all water and
energy balance constraints.  Precipitation is deposited as
snow when the surface air temperature lies below 0C.  Snow
depth is a prognostic variable; deposited snow remains on the
surface until it sublimates or melts away.  The energy
required for sublimation or melting can be extracted from
the net radiation or deep soil.  The land surface remains at
OC while the snow melts.  The fractional areal coverage of snow
is parameterized.

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

Koster, R. and M. Suarez, "Energy and Water Balance Calculations 
in the Mosaic LSM", NASA Tech. Memo. 104606, Vol. 9, 1996.