TY - RPRT TI - Characteristics of volcanic ash reveal changes in fragmentation and eruption dynamics at Poás volcano, Costa Rica, 2016–2019 AU - Monserrat Cascante AU - Thomas Giachetti AU - Heather M. Wright AU - Alexa R. Van Eaton AU - Geoffroy Avard PY - 2025 DO - 10.1007/s00445-025-01820-5 UR - https://pubs.usgs.gov/publication/70266398 ID - 70266398 ER -