TY - RPRT TI - The relative effectiveness of empirical and physical models for simulating the dense undercurrent of pyroclastic flows under different emplacement conditions AU - Sarah E. Ogburn AU - Eliza S Calder PY - 2017 DO - 10.3389/feart.2017.00083 UR - https://pubs.usgs.gov/publication/70197123 ID - 70197123 ER -