Glossary U

The Environmental Glossary. Letter U +++ 'Utility-interactive', 'Urban Fabric Analysis', 'Ultraviolet radiation'

U.S.G.S. --->U.S. Geological Survey

German: Ultraviolett
Ultraviolet radiation (UV) is a portion of the electromagnetic spectrum with wavelengths shorter than visible light.

The Urban Fabric Analysis is a method for determining the proportions of vegetative, roofed, and paved surface Cover relative to the total urban surface in the city. 

An Utility-interactive is a power system which interacts with the utility grid (mains),

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