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Detailed Reference Information |
Deters, B., Burrows, J.P. and Orphal, J. (1998). UV-visible absorption cross sections of bromine nitrate determined by photolysis of BrONO2/Br2 mixtures. Journal of Geophysical Research 103: doi: 10.1029/97JD02390. issn: 0148-0227. |
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Experiments on the determination of absorption cross sections of bromine nitrate by photolysis of BrONO2/Br2 mixtures were carried out using a UV-visible absorption spectrometer. The relatively stable end products of photolysis were identified as Br2 and N2O5. NO3 was observed as intermediate product in the photolysis of BrONO2/Br2. Absorption cross sections for BrONO2 at 298 K and 230 K were determined between 208 and 500 nm. The results are in good agreement with a recent independent study. Calculations of atmospheric photolysis rates of BrONO2 as a function of solar zenith angle and surface albedo were undertaken using the PHOTOGT program. The latter are in the range between 0.5¿10-3 s-1 and 4.0¿10-3 s-1, indicating that during daylight BrONO2 is rapidly photolyzed. ¿ 1998 American Geophysical Union |
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Abstract |
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Keywords
Atmospheric Composition and Structure, Middle atmosphere—composition and chemistry, Atmospheric Composition and Structure, Chemical kinetic and photochemical properties, Atmospheric Composition and Structure, Constituent sources and sinks |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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