Abstract
Ammonia is an important atmospheric trace molecule in the atmospheric transformation of sulfur and nitrogen compounds. Because it is a base, NH3 dissolved in water droplets as the ammonium ion promotes increased solubilities of sulfate and nitrate ions. Ammonia, therefore, is suspected of playing a role in the formation of acid rain. Infrared lidars based on the CO2 laser could be used to remotely monitor ammonia concentrations in the atmosphere.
© 1985 Optical Society of America
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