EARTHSC 2C03 Lecture Notes - Lecture 19: Rais, Planetary Boundary Layer, Bmw 1 Series
15 Feb 2017
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Document Summary
All of the formulations discussed in the previous lecture regarding special feature are applicable to forests. Black/white spruce and tamarack are present through to the treeline (see figure on next page from bailey et al. Recent studies indicate that boreal forests have a strong impact on the annual variability in global co2 concentrations. Heat and water exchange from the boreal forest has a strong influence on local and global climate. The boreal forest is rich in economic resources. Deforestation has important implications for climate change. There is increased interest in the boreal ecosystem for its potential. There is a need to understand momentum transfer in forests. Logging practices make forests vulnerable to wind throw. Albedo is low (typically 15 to 18%) mostly due to radiation trapping in the forest. 10% winter albedo in the absence of snow. Radiation penetration [beer"s law: kd = ko exp(-az)]
