Measurement of the photodissociation coefficient of NO2 in the atmosphere: II,stratospheric measurements |
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| Authors: | S Madronich D R Hastie H I Schiff B A Ridley |
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| Institution: | (1) Department of Chemistry, York University, M3J 1P3 Downsview, Ontario, Canada;(2) Present address: National Center for Atmospheric Research, PO Box 3000, 80307 Boulder, CO, U.S.A. |
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| Abstract: | The photodissociation coefficient of NO2, J
NO
2, has been measured from a balloon platform in the stratosphere. Results from two balloon flights are reported. High Sun values of J
NO
2 measured were 10.5±0.3 and 10.3±0.3×10-3 s-1 at 24 and 32 km respectively. The decrease in J
NO
2 at sunset was monitored in both flights. The measurements are found to be in good agreement with calculations of J
NO
2 using a simplified isotropic multiple scattering computer routine. |
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| Keywords: | J
NO
2 NO2 photolysis atmospheric photochemistry J
NO
2 measurement |
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