Snow accumulation and ablation processes are particularly important to the hydrology of cold climate forests. In order to calculate the distribution of snow cover and the loss of snow to sublimation, the amount of snowfall intercepted by forest canopies must be determined. This paper introduces a ph
Boreal forests and snow in climate models
β Scribed by Richard Essery
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 168 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0885-6087
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β¦ Synopsis
Snow has an important role in the energy balance and hydrology of boreal forests, but general circulation models (GCMs) have so far had to use very simple representations of forests and snow cover in simulations of climate and climate change. Results are shown from a comparison between heat Β―uxes measured over a coniferous canopy and simulated by the land surface scheme used in the Hadley Centre GCM. Simulated sensible and latent heat Β―uxes are found to be highly sensitive to the assumed distribution of snow between the canopy and the ground. This sensitivity is reduced, but remains large, when the surface scheme is coupled to an atmospheric model # 1998 John Wiley & Sons, Ltd.
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Snow ablation modelling at the stand scale must account for the variability in snow cover and the large variations of components of energy transfer at the forest Β―oor. Our previous work successfully predicted snow ablation in a mature jack pine stand by using a one-dimensional snow process model and
A series of process-based algorithms has been developed to describe the accumulation, unloading and sublimation of intercepted snow in forest canopies. These algorithms are unique in that they scale up the physics of interception and sublimation from small scales, where they are well understood, to
To evaluate the interactive eects of snow and forest on turbulent Β―uxes between the forest surface and the atmosphere, the surface energy balance above a forest was measured by the eddy correlation method during the winter of 1995Β±1996. The forest was a young coniferous plantation comprised of spruc