Snow-pile and chamber experiments during the Polar Sunrise Experiment ‘Alert 2000’: exploration of nitrogen chemistry

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• 作者：Beine ; Harald J. ; Dominé ; Florent ; Simpson ; William ; Honrath ; Richard E. ; Sparapani ; Roberto ; et. al.
• 关键词：Nitrogen oxides ; Arctic ; Snow ; Photochemical release ; Diffusion of HNO₃
• 刊名：Atmospheric Environment
• 出版年：2002
• 出版时间：May - June, 2002
• 年：2002
• 卷：36
• 期：15-16
• 页码：2707-2719
• 全文大小：593 K

文摘

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.