Data in this database are freely available under the request of citation of   this paper   and the  paper   in which the data were published.
El Chichón
origin El Chichon volcano in Mexico. The particles were collected at a few kilometers from the vent within 24 hours after an eruption in 1982
main constituents volcanic silicate ash
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 distributions
Fraunhofer: reff=3.2 μm, veff=5.4
particle shape irregular
refractive index estimated to be in the range [1.5-1.6] + i0.001
color very similar to Pinatubo color
scattering matrix 632.8 nm
article 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