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DAILY NEWS ANALYSIS
10 January, 2024
5 Min Read
Dense fog covered the better part of north India during the last days of December and the 1st couple of days of 2024.
What is fog?
A fog – It is a collection of small droplets of water produced when evaporated water has cooled down and condensed.It is nothing but a thick cloud, but very close to the earth’s surface.
Fog materialises whenever there is a temperature disparity between the ground and the air.
|
Fog |
Mist |
|
A thick low lying cloud at surface level and composed of tiny dew drops in the air. |
A cloud formed out of small droplets held over in atmosphere at ground level due to temperature inversion of humidity variation. |
Density |
Very high |
Relatively low |
Visibility |
Lower, upto 1 km |
Relatively higher, more than 1 km |
Longevity |
Longer period |
Shorter time |
What are the different types of fog?
Steam Fog – It forms during the fall season on any lake due to the difference in rate of cooling and interactions between the upper cold air and relatively warmer lake.
Valley fog is so dense that sometimes it is called as tule fog.
What is the situation of fogging in northern India?
Recently, Delhi experienced an increase in pollution levels, with an AQI rating of “severe.”
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