Spectral properties of ice-particulate mixtures and implications for remote sensing. I - Intimate mixtures

Details Spectral properties of ice-particulate mixtures and implications for remote sensing. I - Intimate mixtures Spectral properties of ice-particulate mixtures and implications for remote sensing. I - Intimate mixtures

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.6341c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, July 10, 1984, p. 6341-6348.

Physics

82

Ice, Infrared Signatures, Mineralogy, Particle Size Distribution, Remote Sensing, Satellite Surfaces, Spectral Reflectance, Abundance, Albedo, Continuous Spectra, Infrared Absorption, Optical Paths, Particle Density (Concentration), Particulates, Scattering Functions

Scientific paper

From laboratory spectra of many ice-particulate mixtures with high, medium, and low albedo particulates, the band depths, continuum reflectance, and ratio of band depth to continuum reflectance are derived as a function of the logarithm of thef particulate weight fraction in the sample. Ice band depths are dependent on the particulate albedo, and increase with smaller weight fractions of particulates until the bands saturate and their depths decrease. While the continuum reflectance is a complex function of the particulate albedo and wavelength of light, the band depth-to-continuum reflectance ratios appear independent of particulate albedo in such a fashion that, for a given grain size of particulate, a calibration curve to the abundance of ice and particulates is derived. Theoretically produced frost spectra show similar curves of growth for band depth, continuum reflectance, and corresponding ratio vs the photon mean optical path length.

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