origin | various aerosol matrices combined |
note | PLEASE, NOTE THAT THE VALUES FOR THE SYNTHETIC AVERAGE VOLCANIC SCATTERING MATRIX IN THIS DATABASE ARE SLIGHTLY DIFFERENT FROM THOSE PRESENTED IN THE JGR PAPER BY Muñoz et al., 2004. For the Synthetic Average Volcanic Scattering Matrix F11_au is normalized so that its average over all directions equals unity. |
main constituent | various volcanic ashes matrices combined |
practical significance | interpretation of remote sensing data. Analogues of other planets' atmospheric dust, and dust in comets, asteroids, and circumstellar shells |
particle size | measured size distribution
Fraunhofer: reff= between 3 and 14 μm |
particle shape | irregular |
refractive index | estimated to be in the range [1.48-1.7] + i[0.00001-0.02] |
color | various |
sscattering matrix | synthetic Average Volcanic Scattering Matrix from 0-180 degrees scattering angle |
article | Muñoz O,Volten H, Hovenier JW, Veihelmann B, van der Zande WJ, Waters LBFM, Rose WI. Scattering matrices of volcanic ash particles of Mount St. Helens, Redoubt, and Mount Spurr Volcanoes. Journal of Geophysical Research, vol. 109, D16201, 2004
Muñoz O, Volten H, de Haan JF, Vassen W, Hovenier JW. Experimental determination of the phase function and degree of linear polarization of El Chichón and Pinatubo volcanic ashes. Journal of Geophysical Research, vol. 107, no. D13, 4174, 10.1029/2001JD000983, 2002 Volten H, Muñoz O, Rol E, de Haan JF, Vassena W, Hovenier JW. Scattering matrices of mineral aerosol particles at 441.6 nm and 632.8 nm. Journal of Geophysical Research, 106, no. D15, pp. 17,375-17,401, 2001 |