GEOL 001 Lecture Notes - Lecture 32: Wildfire, Mass Wasting
20 Dec 2020
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Document Summary
Only 2 industrial countries recently reduce emissions: us and germany. Will have to, to some degree but impossible to adapt everywhere to worst case conditions. Removes vegetation, which may promote mass wasting and flash floods. Important part of forest lifecycles in some areas. Combustion - rapid oxidation with a large release of energy. Can occur in any conditions and is where peat, coal, tree roots or other materials ignite and burn under the ground. Ground fires can burn through to the surface and become surface fires. Are low to high intensity fires that burn on the surface of the ground. The tree canopy may be scorched but does not burn to the extent that it will carry a fire. Surface fires may climb ladder fuel (small trees and underbrush) to reach courn of large trees. Many woodland fires only burn in underbrush. But if tops of trees are involved. Fire grows large enough to create powerful inflowing winds.
