Poster Nitric oxide produced by energetic electron precipitation during a geomagnetic storm in April 2010. Smith-Johnsen, C.; Tyssøy, H.N.; Ødegaard, L.-C. G.; Stordal, F.; Orsolini, Y.; Hendricks, K.; Megner, L. Publication details Poster presented at American Geophysical Union Fall Meeting, San Francisco (USA), 14-19 December 2015.