Elevated thermal signals from Cleveland Volcano, June 23, 2012

Elevated brightness temperatures from both AVHRR and MODIS MIR data seen overnight from Cleveland Volcano. Some geo-location error so 'hot' pixels offset from volcano summit. In MODIS pass, edge of swath is evident (hence black region)

Time Averaged Effusion rate = 2.7 - 3.0 m³/s

MIR signals up to 40 C above background (note this is averaged temperature of a 1.1 km² pixel)

AVHRR MIR for Cleveland Volcano at 12:58 UTC, June 23 2012, with 40 x 40 region

 

MODIS MIR for Cleveland Volcano at 13:44 UTC, June 23 2012, with 40 x 40 region

AVHRR MIR for Cleveland Volcano at 14:26 UTC, June 23 2012, with 40 x 40 region