A temperature inversion occurs where there is a layer of air through which the temperature increases with increasing height. It is the reverse of the normal situation where temperature decreases with height.
Thermometer:
An instrument for measuring temperature. In normal meterological practice, mercury-in-glass thermometers are used. For extreme conditions alcohol (which has a freezing point of -114 degrees C) thermometers are used.
Troposphere:
The lowest level of the atmosphere, from the ground upward to about 16 km at the equator and 11 km at the polar regions.
Typhoons:
A name of Chinese origin (meaning 'great wind' applied to the intense tropical cyclones which occur in the western Pacific Ocean. They are basically the same as the hurricanes of the Atlantic Ocean and the cyclones of the Bay of Bengal.
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Temperature Inversions: