Snow-pile and chamber experiments during the Polar Sunrise Experiment 'Alert 2000': Exploration of nitrogen chemistry

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Conference Proceeding

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Snow chamber and snow-pile experiments performed during the 'Alert 2000' campaign show significant release of NO, NO2, and HONO in steady ratios under the influence of irradiation. Both light and a minimal degree of heating are required to produce this effect. We suggest diffusion and re-distribution of NO3- in the form of HNO3 as an important step in the mechanism of active nitrogen release from the snowpack. © 2002 Elsevier Science Ltd. All rights reserved.

Publication Title

Atmospheric Environment