Infrared radiative transfer calculations for volcanic ash clouds

Details Infrared radiative transfer calculations for volcanic ash clouds Infrared radiative transfer calculations for volcanic ash clouds

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16.1293p&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, Nov. 1989, p. 1293-1296.

Physics

49

Fly Ash, Infrared Absorption, Infrared Radiation, Radiative Transfer, Volcanoes, Climate Change, Earth Surface, Surface Temperature

Scientific paper

Radiative transfer calculations are performed for volcanic ash clouds assumed to consist of mixtures of ash particles, ice spheres, water droplets and ash particles coated with sulphuric acid. The results show that, for nascent volcanic eruption clouds, a reverse absorption effect is noticeable in the infrared window between 10 and 13 microns, for which absorption of infrared radiation increases with increasing wavelength. This effect may be of use in detecting hazardous volcanic clouds from space.

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