Effect of electron injection on stratospheric ozone concentration

Creating low-energy electrons in the stratosphere by photoelectric emission may have the beneficial effect of suppressing ozone destruction by Cl. This is because Cl is converted to Cl-, which is less reactive. Critical to the success of this scheme is the ability to attach most of the electrons to...

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Bibliographic Details
Main Authors: Ho, D.D.-M., Tsang, K.T., Siverson, R.J., Wong, A.Y.
Format: Conference Proceeding
Language:English
Subjects:
Absorption
Atmospheric waves
Clouds
Electrons
Gyrotrons
Millimeter wave measurements
Millimeter wave radar
Plasma sources
Plasma waves
Power measurement
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Summary:Creating low-energy electrons in the stratosphere by photoelectric emission may have the beneficial effect of suppressing ozone destruction by Cl. This is because Cl is converted to Cl-, which is less reactive. Critical to the success of this scheme is the ability to attach most of the electrons to Cl- and its hydrates Cl- (H 2 O). We found that this attachment efficiency is rather high. This is remarkable given the fact that the electron affinity of Cl-is less than that of NO 3- . Photodetachment of NO 3- is the key factor that leads to this high efficiency. We will discuss the important chemical reactions that are involved in the electron to negative ion cascade and recycling processes. Computer simulation of the stratospheric chemistry will also be presented.
DOI:10.1109/PLASMA.1991.695465