𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Albedo variations of an oak forest in Pennsylvania

✍ Scribed by D.R. DeWalle; S.G. McGuire

Publisher
Elsevier Science
Year
1973
Weight
377 KB
Volume
11
Category
Article
ISSN
0002-1571

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✦ Synopsis

The albedo of an oak forest was measured on 16 days throughout the year. Growing-season albedo ranged from 16 to 18% with variations due to cloud conditions. Autumn albedos did not increase with leaf color changes and until leaf fall was nearly complete remained similar to growing season values. Dormant season albedo was 12 to 14% without snow and 25 to 30% with snow on the ground. The effects of zenith angle on albedo were noticeable during a day, but these albedo changes were much more pronounced during the growing than in the dormant season. The measurements also suggested that the forest was a diffuse reflector.

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