Model Question and Answers for APSC | What do you understand by the phenomenon of temperature inversion in meteorology? How does it affect the weather and the inhabitants of the place?
What do you understand by the phenomenon of temperature inversion in meteorology? How does it affect the weather and the inhabitants of the place?
The temperature in the troposphere typically decreases with increasing altitude at a rate of 1 degree for every 165 metres under normal conditions. This is known as the normal lapse rate. However, on rare occasions, the situation is reversed and the temperature begins to rise with height rather than fall. This is known as temperature inversion.
Ideal Temperature Inversion Conditions:
- Long nights, so that outgoing radiation exceeds incoming radiation
- Clear skies allow radiation to escape unhindered
- There is no vertical mixing at lower levels
Effect of Inversion on the weather and the inhabitants of the place:
- The occurrence of fog: clouds form in contact with the ground (fog), limiting visibility to less than 1km. Smog is formed when fog and smoke combine in urban areas.
- Temperature inversion has a significant impact on orchard The lower valleys of the Alps Mountains are almost devoid of settlements, whereas the upper slopes are densely populated.
- Crop damage: Winter crops such as wheat, barley, mustard, vegetables, chillies, potatoes, and so on have been severely damaged.
- Road accidents: Visibility below the inversion may be greatly reduced due to the accumulation of dust and smoke particles. Due to low visibility, the number of roads, rail, and air accidents increases during foggy Trains and planes are frequently delayed.
- Convective clouds cannot grow high enough to produce showers in areas where there is a strong low-level inversion.
- Temperature diurnal variations are also affected by Diurnal variations are typically very small.