Practical Permaculture – Albedo and Absorption of Solar Energy in the Garden

chriscondello

albedo

First of all let me say that Spring is almost here, but it is still very cold outside… I am running out of photos to use and I’m sorry,  but for now these will have to do… I promise I’ll be taking many new photos as soon as I can… But I am starting to run out of steam as far as Winter is concerned… I really need Spring to get here…

Albedo, or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it. Being a dimensionless fraction, it may also be expressed as a percentage, and is measured on a scale from zero for no reflecting power of a perfectly black surface, to 1 for perfect reflection of a white surface.

The opposite of albedo is absorption, which is defined in this case…

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