PUFF simulation of the Feb 19 eruption of Cleveland Volcano
These images show the puff simulation of Cleveland Volcano, February
19 2001 using available NWS wind fields, specifically the "Aviation
model" (grid 203(J), 190.5 km resolution) forecast data. The
diffusivity constant was lowered from the default value to 5000
m^2/sec. Ash was initialized in a linear column from 0 to 42000 feet
so that all levels are represented. After comparison to the GOES10
imagery, it is apparent that levels between 18000 to 36000 feet
coincide with visible (split-window technique) ash.
More information on the eruption and ash cloud can be found at the Alaska
Volcano Observatory. Thanks to Dave Schneider and Kevin Engle for
the satellite imagery.
GOES10 Split Window 4 minus 5 images with PUFF overlay:
Animated Gif (appx 8M)