Which Unit/Scale is used to measure the 'thicknesses of Stratospheric Ozone layer'?

The correct answer is Dobson units.

Key Points

• Stratosphere is the layer of earth that contains ozone gas.
• The Dobson Unit is used to measure the thickness of Stratospheric Ozone layer.
• DU is a unit of measurement of the amount of a trace gas in a vertical column through the Earth's atmosphere.
• One Dobson Unit is the number of molecules of Ozone that would be required to create a layer of pure ozone 0.01 millimetres thick at a temperature of 0 degrees celsius and a pressure of 1 atmosphere.

 Thus, we can say that Dobson unit is used to measure the thickness of Stratospheric Ozone layer.

Additional Information

• Beaufort Scale is an empirical measure that relates wind speed to observed conditions at sea or land.
• Sieverts is a unit intended to represent stochastic health risk of ionizing radiation.