Spectralon white reference panel purchased from Labsphere Inc. (North Sutton, New Hampshire, USA). The absolute reflectance of Spectralon was derived using the procedure described in Clark and others (1990) for halon. In this procedure, the reflectance of Spectralon was measured relative to sulfur and ground aluminum. Clark, R.N., King, T.V., Klejwa, M., Swayze, G.A., & Vergo, N. (1990). High spectral resolution reflectance spectroscopy of minerals. Journal of Geophysical Research: Solid Earth (1978�2012), 95(B8), 12653-12680. http://dx.doi.org/10.1029/JB095iB08p12653
X Units
cm⁻¹
Y Units
Absorbance
Data Points
2,126
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Attribution
USGS Spectral Library Version 7, U.S. Geological Survey