@article{Jackman_2011, title={Northern Hemisphere atmospheric influence of the solar proton events and ground level enhancement in January 2005}, volume={11}, ISSN={1680-7324}, url={http://dx.doi.org/10.5194/acp-11-6153-2011}, DOI={10.5194/acp-11-6153-2011}, number={13}, journal={Atmospheric Chemistry and Physics}, publisher={Copernicus GmbH}, author={Jackman, C. H. and Marsh, D. R. and Vitt, F. M. and Roble, R. G. and Randall, C. E. and Bernath, P. F. and Funke, B. and López-Puertas, M. and Versick, S. and Stiller, G. P. and Tylka, A. J. and Fleming, E. L.}, year={2011}, month=jul, pages={6153–6166} }