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Dependence of snow melting and surface-atmosphere interactions on the forest structure

✍ Scribed by J. Otterman; K. Stáenz; K. I. Itten; G. Kukla

Publisher
Springer
Year
1988
Tongue
English
Weight
517 KB
Volume
45
Category
Article
ISSN
0006-8314

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✦ Synopsis

The surface albedo and the surface roughness for forested areas with snow on the ground are expressed in terms of the tree silhouette parameter s, the projection on the vertical plane of trees per unit area. The absorption of insolation (direct solar beam) is quantitatively described for a horizontal snow surface with vertical tree trunks, stressing the role of the bark at snow level as triggering the snow melt.

Measurement of s by field sampling in two forested sites in central Switzerland yielded values ranging from 1.8 to 2.1.

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