Jeffrey A. TesseinDavid RuffoloWilliam H. MatthaeusMinping WanJoe GiacaloneMarcia NeugebauerUniversity of DelawareMahidol UniversityUniversity of Arizona2018-11-232018-11-232015-10-10Astrophysical Journal. Vol.812, No.1 (2015)153843570004637X2-s2.0-84946118876https://repository.li.mahidol.ac.th/handle/20.500.14594/35882© 2015. The American Astronomical Society. All rights reserved.. We present results from an analysis of Advanced Composition Explorer (ACE) observations of energetic particles in the 0.047-4.78 MeV range associated with shocks and discontinuities in the solar wind. Previous work found a strong correlation between coherent structures and energetic particles measured by ACE/EPAM. Coherent structures are identified using the Partial Variance of Increments (PVI) method, which is essentially a normalized vector increment. The correlation was based on a superposed epoch analysis using over 12 years of data. Here, we examine many individual high-PVI events to better understand this association emphasizing intervals selected from data with shock neighborhoods removed. We find that in many cases the local maximum in PVI is in a region of rising or falling energetic particle intensity, which suggests that magnetic discontinuities may act as barriers inhibiting the motion of energetic particles across them.Mahidol UniversityEarth and Planetary SciencesArticleSCOPUS10.1088/0004-637X/812/1/68