Data in this database are freely available under the request of citation of   this paper   and the  paper   in which the data were published.
Average Volcanic
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