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Calculations of the temperature dependence of the NO2 photodissociation coefficient in the atmosphere |
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| Authors: | S. Madronich D. R. Hastie B. A. Ridley H. I. Schiff |
| Affiliation: | (1) Department of Chemistry, York University, M3J 1P3 Downsview, Ontario, Canada;(2) Present address: Aerochem Research Laboratories, PO Box 12, 08540 Princeton, NJ, U.S.A.;(3) Present address: National Center for Atmospheric Research, PO Box 3000, 80307 Boulder, CO, U.S.A. |
| Abstract: | The photodissociation coefficient, JNO2 of NO2 in the atmosphere was calculated at 235 and 298 K using the measured temperature dependences of the absorption cross-sections and quantum yields. These calculations gave a ratio JNO2(298 K)/JNO2(235 K)=1.155±0.010 which is only weakly dependent on altitude, surface albedo and solar zenith angle. |
| Keywords: | Atmosphere photolysis nitrogen dioxide photodissociation coefficient temperature effect |
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