CME evolution and the corresponding Forbush decrease: modelling vs multi-spacecraft observation

<p>One of the very common in-situ signatures of ICMEs, as well as other interplanetary transients are Forbush decreases (FDs), i.e. short-term reductions in the galactic cosmic ray (GCR) flux. A two-step FD is often regarded as a textbook example, which presumably owns its specific morphology to the... View More