#SUBSTANCE=Augustine ash
#DESCRIPTION=Ash from Augustine volcanic eruption, sample taken on 13 January 2006
#REFERENCE=Ball, J. G. C., B. E. Reed, R. G. Grainger, D. M. Peters, T. A. Mather, and D. M. Pyle (2015), Measurements of the complex refractive index of volcanic ash at 450, 546.7, and 650 nm. J. Geophys. Res. Atmos., 120, 7747–7757.
#DOI=10.1002/2015JD023521
#FORMAT= WAVL N DN K DK
0.4500	1.535	0.01	0.000425	0.00010
0.5467	1.530	0.01	0.000549	0.000097
0.6500	1.529	0.01	0.000517	0.00013
