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Sheep in fog.
What is the difference between mist and fog?
We speak of fog when the horizontal visibility is less than 1000 meters.
When a horizontal visibility is between 1,000 and 5,000 meters, then we talk about spray.
In general, reduced visibility when the air is saturated with water vapor, but also intense sleet can be the cause of reduced visibility. It is the cooling of the air which is responsible for the formation of mist.
A first form of mist occurs in a region of high air pressure, when there is no cloudiness and the nights are fresh. Temperatures during the night drop dramatically by unhindered radiation of heat from the earth. Since cold air can hold less water vapor than warm air, the water vapor condenses on strong cooling and creates fine water droplets. First come rushing to near wetlands such as swamps, ponds or watercourses. If the cooling continues, also the mist spreads over other areas. This type of fog is called radiation fog.


Canon EOS 5D Mark II
Shooting Date/Time
19/12/2012 11:50:26
Shooting Mode
1/400
Av( Aperture Value )
5.6
Exposure Compensation
+1/3
ISO Speed
400
Lens
EF70-200mm f/2.8L IS USM
Focal Length
70.0mm
Image Size
5616x3744
Image
Quality
RAW
Picture Style
Landscape

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Additional Photos by John Maenhout (jhm) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 23479 W: 523 N: 38959] (168420)
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