Comparison of Solar Energetic Particle Events and Impulsive Nitrate Increases in Greenland Ice Cores

Details Comparison of Solar Energetic Particle Events and Impulsive Nitrate Increases in Greenland Ice Cores Comparison of Solar Energetic Particle Events and Impulsive Nitrate Increases in Greenland Ice Cores

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsh53b0313s&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SH53B-0313

Physics

2104 Cosmic Rays, 2118 Energetic Particles, Solar, 2162 Solar Cycle Variations (7536)

Scientific paper

Using nitrate measurements from Greenland ice cores we examine the correlation of nitrate spikes and solar proton events. We choose a few large space-age events for analysis, focusing particular attention on the amplitude and timing of the nitrate increase in relation to the onset and characteristics of the SEP event. A time delay between nitrate spikes and SEP onset has previously been observed to be a few weeks, which is much faster than current atmospheric downward transport theory allows. Independent confirmation or invalidation of the previous analysis of this short delay has not been attempted before.

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