"409361" . "Zhu, T." . "Grannas, A. M." . "It has been shown that sunlit snow and ice plays an important role in processing atmospheric species. Photochemical production of a variety of chemicals has recently been reported to occur in snow/ice and the release of these photochemically generated 5 species may significantly impact the chemistry of the overlying atmosphere. Nitrogen oxide and oxidant precursor fluxes have been measured in a number of snow covered environments, where in some cases the emissions significantly impact the overlying boundary layer. For example, photochemical ozone production (such as that occurring in polluted mid-latitudes) of 3-4 ppbv/day has been observed at South Pole, due 10 to high OH and NO levels present in a relatively shallow boundary layer. Field and laboratory experiments have determined that the origin of the observed NOx flux is the photochemistry of nitrate within the snowpack, however some details of the mechanism have not yet been elucidated." . "35"^^ . "[BE2730DDD102]" . . "Sodeau, J. R." . "Carver, G." . "An overview of snow photochemistry: evidence, mechanisms and impacts"@en . "FR - Francouzsk\u00E1 republika" . . "Crawford, J. H." . "Hoffmann, M. R." . . "Wolff, E. W." . . "An overview of snow photochemistry: evidence, mechanisms and impacts"@en . "Bergin, M." . . "44"^^ . "RIV/00216224:14310/07:00020318!RIV10-MSM-14310___" . "Jacobi, H. W." . "Shepson, P. B." . "Kl\u00E1n, Petr" . . "000249072900013" . . "Chen, G." . "Hutterli, M." . "Atmospheric Chemistry and Physics Discussions" . "Sander, R." . . . . "Photochemistry; snow; review"@en . "Huey, L. G." . "Plane, J." . "Helmig, D." . "Jones, A. E." . "Frey, M. M." . "Simpson, W. R." . . "14310" . "2" . "P(GA205/05/0819), Z(MSM0021622412)" . "Bottenheim, J." . . "1"^^ . "An overview of snow photochemistry: evidence, mechanisms and impacts" . "Guzman, M. I." . "Savarino, J." . . "An overview of snow photochemistry: evidence, mechanisms and impacts" . "Lefer, B." . "Beine, H. J." . . "Domine, F." . . "It has been shown that sunlit snow and ice plays an important role in processing atmospheric species. Photochemical production of a variety of chemicals has recently been reported to occur in snow/ice and the release of these photochemically generated 5 species may significantly impact the chemistry of the overlying atmosphere. Nitrogen oxide and oxidant precursor fluxes have been measured in a number of snow covered environments, where in some cases the emissions significantly impact the overlying boundary layer. For example, photochemical ozone production (such as that occurring in polluted mid-latitudes) of 3-4 ppbv/day has been observed at South Pole, due 10 to high OH and NO levels present in a relatively shallow boundary layer. Field and laboratory experiments have determined that the origin of the observed NOx flux is the photochemistry of nitrate within the snowpack, however some details of the mechanism have not yet been elucidated."@en . "7" . "Heard, D. E." . "Anastasio, C." . . "McConnell, J." . "Honrath, R. E." . "Amman, M." . "von Glasow, R." . "1680-7316" . "RIV/00216224:14310/07:00020318" . "Boxe, C. S." . . "Dibb, J." . "Weller, R." .