Effect of continuum slope on spectral adsorption minimum

Plot of reflectance versus wavelength showing the effect of continuum slope on adsorption minimum as applied to spectral data

Detailed Description

Plot of reflectance versus wavelength showing the effect of continuum slope on adsorption minimum as applied to spectral data.  Continuaa can be thought of as an additive effect of optical constants, but in reflectance spectra, scattering and Beers Law make the effects non-linearly multiplicative. So the continuum should be removed by division, whether you are working in reflectance or emittance. The continuum should be removed by subtraction only when working with absorption coefficients. In a spectrum with a sloping continuum, correction removes the effect of shifts in the local reflectance minimum.

Details

Image Dimensions: 800 x 800

Date Taken:

Location Taken: US

Source:

Spectroscopy of Rocks and Minerals, and Principles of Spectroscopy, Figure 23
Clark, R. N., Chapter 1: Spectroscopy of Rocks and Minerals, and Principles of Spectroscopy, in Manual of Remote Sensing, Volume 3, Remote Sensing for the Earth Sciences, (A.N. Rencz, ed.) John Wiley and Sons, New York, p 3- 58, 1999.