TY - RPRT TI - Lightning effects on the grain size distribution of volcanic ash AU - Kimberly Genareau AU - Kristi L. Wallace AU - Pedram Gharghabi AU - James Gafford PY - 2019 DO - 10.1029/2018gl081298 UR - https://pubs.usgs.gov/publication/70260380 ID - 70260380 ER -