Ozone

The ozone monitoring programme of the Malaysian Meteorological Service includes monitoring of vertical ozone
profile and total column ozone in the atmosphere.

Vertical Ozone Profile

The vertical ozone profile is measured by releasing an ozonesonde attached to a balloon into the upper
atmosphere. Signals transmitted from the ozonesonde are received by a ground station. The monthly
soundings obtained showed that ozone concentrations peak sharply in the stratosphere at a height of
about 25 kilometers. 

Total Column Ozone

Total column ozone observations are made with a Brewer Ozone Spectrophotometer which measures the relatives intensities of selected pairs of ultraviolet wavelengths of light emanating from the sun and zenith sky. Total ozone values measured during the year 2007 varied between 227 to 278 Dobson units.    

 For more information, see Atmospheric Ozone.