Physics
Scientific paper
Feb 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26..455k&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 4, p. 455-458
Physics
14
Volcanology: Ash Deposits, Atmospheric Composition And Structure: Volcanic Effects, Meteorology And Atmospheric Dynamics: Remote Sensing, Volcanology: Eruption Monitoring
Scientific paper
On August 19, 1992, the Advanced Very High Resolution Radiometer (AVHRR) onboard NOAA-12 and NASA's Total Ozone Mapping Spectrometer (TOMS) onboard the Nimbus-7 satellite simultaneously detected and mapped the ash cloud from the eruption of Mt. Spurr, Alaska. The spatial extent and geometry of the cloud derived from the two datasets are in good agreement and both AVHRR split window IR (11-12 μm brightness temperature difference) and the TOMS UV Aerosol Index (0.34-0.38 μm ultraviolet backscattering and absorption) methods give the same range of total cloud ash mass. Redundant methods for determination of ash masses in drifting volcanic clouds offer many advantages for potential application to the mitigation of aircraft hazards.
Bluth Gregg J. S.
Kostinski Alex
Krotkov Nickolay A.
Krueger August J.
Rose William I.
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