Light attenuation - Absorption, scattering, or reflection of light by water, chlorophyll a, dissolved substances, or particulate matter. Light attenuation reduces the amount of light available to submerged aquatic vegetation.
Attenuation coefficient, which is sometimes but not always synonymous with absorption coefficient
Molar absorptivity, also called "molar extinction coefficient", which is the absorption coefficient divided by molarity (see also Beer-Lambert law).
Attenuation potential The attenuation potential further considers the following factors:
Texture of surface soil
Texture of sub soil
Surface layer pH
Organic matter content of the surface
Soil drainage class ...
Airborne topographic mapping lidars generally use 1064 nm diode pumped YAG lasers, while bathymetric systems generally use 532 nm frequency doubled diode pumped YAG lasers because 532 nm penetrates water with much much less attenuation than does ...
Note that setting the signal analyzer's reference level provides a simple mechanism to adjust the front-end attenuation or amplification.
A field strength value is interpolated from a table of field strength attenuation at selected ranges and impedances. That value is adjusted for transmitter power and converted to dB above one microvolt per meter.
 See also: Information, Object, Area, Analysis, Cover
  
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