illuminance
160
ditions by alteration of micas, alkali feldspars etc., and are widely distributed in sediments and soils.
~------9 0 A ------~~~
6-0 •.• c
Illite. (After Beutelspacher and van der Marel 1968)
' O.lCH]
H· .... O . ~. , 0
, O.HI ..
..
~
o ,
illuminance the amount of visible light per unit area falling on a surface. Typical
measurement units are the lux (lumens per square meter) and the foot candle (lumens per square foot).
immigration process of migration of individuals of a population towards or into
a certain area; opposed to emigration.
indicator (bioI.) a living object (plant, animal, community or parts of it) which
gives unequivocal information on (biotic or abiotic) changes in the natural
environment, or a change in quality for example, by growth form, behavior,
or the accumulation of pollutants. Such changes may result from natural
causes or from human activities. Essential for indicators is the reversible relationship between the "dose" parameter and the "effect" parameter. Bio-indicators may be local, regional, or usable on a larger scale (e.g., worldwide).
industrial waste ~waste.
inertial oscillation if a fluid on the rotating earth is set into motion (for instance
by a sudden impulse), and no horizontal pressure forces are counteracting
the current, the only force acting is the Coriolis force, if the friction may be neglected.As this force works at right angles (except on the equator) to the current, the fluid will continuously turn around and the water particles describe
160
ditions by alteration of micas, alkali feldspars etc., and are widely distributed in sediments and soils.
~------9 0 A ------~~~
6-0 •.• c
Illite. (After Beutelspacher and van der Marel 1968)
' O.lCH]
H· .... O . ~. , 0
, O.HI ..
..
~
o ,
illuminance the amount of visible light per unit area falling on a surface. Typical
measurement units are the lux (lumens per square meter) and the foot candle (lumens per square foot).
immigration process of migration of individuals of a population towards or into
a certain area; opposed to emigration.
indicator (bioI.) a living object (plant, animal, community or parts of it) which
gives unequivocal information on (biotic or abiotic) changes in the natural
environment, or a change in quality for example, by growth form, behavior,
or the accumulation of pollutants. Such changes may result from natural
causes or from human activities. Essential for indicators is the reversible relationship between the "dose" parameter and the "effect" parameter. Bio-indicators may be local, regional, or usable on a larger scale (e.g., worldwide).
industrial waste ~waste.
inertial oscillation if a fluid on the rotating earth is set into motion (for instance
by a sudden impulse), and no horizontal pressure forces are counteracting
the current, the only force acting is the Coriolis force, if the friction may be neglected.As this force works at right angles (except on the equator) to the current, the fluid will continuously turn around and the water particles describe