Dynamic coupling of volcanic CO2 flow and wind at the Horseshoe Lake tree kill, Mammoth Mountain, CA

摘要: We investigate spatio-temporal relationships between soil CO2 flux (FCO2), meteorological variables, and topography over a ten-day period (09/12/2006 to 09/21/2006) at the Horseshoe Lake tree kill, Mammoth Mountain, CA. Total discharge varied from 16 52 t d-1, suggesting decline in emissions decadal timescales. observed systematic changes FCO2 space time association with weather front relatively high wind speeds west low atmospheric pressures. The largest were elevation areas. variations may be due dynamic coupling of wind-driven airflow through subsurface flow source depth. Our results highlight influence fronts on volcanic gas near-surface environment how this can vary spatially within study area.