Yeh, T-C., R. T. Wetherald, and S. Manabe, 1983: A model study of the short-term climatic and hydrologic effects of sudden
snow-cover removal. Monthly Weather Review, 111 (5), 1013-1024.
Abstract: This paper describes the results from a set of numerical experiments which
stimulate the effect of a large-scale removal of snow cover in middle and
high latitudes during the early spring season. This is done through use
of a simplified general circulation model with a limited computational domain
and idealized geography.
It is found that removal of snow cover reduces the water available to the
soil through snowmelt and decreases soil moisture in this region during
the following seasons. Furthermore, it also reduces surface albedo in this
region and increases absorption of insolation by the ground surface. This,
in turn, heats the ground surface and allows more evaporation to occur.
However, the change of evaporation is relatively small owing to the low
values of surface temperature in high latitudes. Therefore, the negative
anomaly of soil moisture induced initially by the removal of snow cover
persists for the entire spring and summer seasons.
The removal of snow cover also affects the thermal and dynamical structure
of the atmosphere. It is found that the increase of surface temperature
extends into the upper troposphere thereby reducing both meridional temperature
gradient and zonal wind in high latitudes.