University of California - Los Angeles


  • Jochen Stutz
  • Olga Pikelnaya
  • Catalina Tsai
  • Dejian Fu
  • Clare Wong
  • Jennie Thomas


  • Long Path DOAS - The Differential Optical Aborption Spectroscopy (DOAS) is a method to measure very reactive trace gases without disturbing the actual composition of the atmosphere. It is especially useful for radical species. For a DOAS measurement a parallel light beam is sent through the atmosphere. After a path of up to several kilomters the spectrum of the light is analysed. Trace gases like NO2, ozone, BrO, NO3 , and many others change this spectrum in a characteristic which is the used to calculate the concentrations of these gases.

Long Path DOAS Long Path DOAS


ucla/home.txt · Last modified: 2009/04/02 08:13 by tihuang
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