Abstract
A one‐dimensional electromagnetic particle simulation model is constructed to study the excitation of whistler waves in the presence of a cold plasma cloud for conditions representative of those after the release of lithium in the inner plasma sheet during the CRRES mission. The results indicate that a standing‐wave pattern with discrete wave frequencies is formed within the cloud. The magnetic wave amplitude inside the cloud, which is limited by quasi‐linear diffusion, is of the order of several nanoteslas. Assuming a magnetospheric loss cone of 5°, the observed pitch angle diffusion produced by the whistler waves is sufficient to put the electrons on strong diffusion.
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