On Hapke photometric model predictions on reflectance of closely packed particulate surfaces

Hao Zhang, Kenneth Voss

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In a recent paper Hapke et al. (Hapke, B., Shepard, M., Nelson, R., Smythe, W., Piatek, J. [2009]. Icarus 199, 210-218) performed bi-directional reflectance measurements on closely-packed particulate surfaces of micrometer-sized particles and compared these with both the Hapke IMSA photometric model, and a numerical radiative transfer algorithm, the MDYZ (Mishchenko, M., Dlugach, J., Yanovitskij, E., Zakharova, N. [1999a]. J. Quant. Spectrosc. Radiat. Trans. 63, 409-432). To account for the effects of close packing, Hapke et al. applied a diffraction truncation scheme to remove the diffraction spike and supplied the renormalized single scattering phase function to the IMSA. They found that the IMSA prediction is a better match with measurement than that of MDYZ. In this work we demonstrate that the diffraction truncation procedure outlined by Hapke et al. contains an error. By following Hapke et al.'s intended truncation scheme, we have found that the IMSA model is not sufficiently anisotropic to describe the reflectance pattern. of measurements on surface reflectance of closely packed large spherical particles.

Original languageEnglish (US)
Pages (from-to)27-33
Number of pages7
JournalIcarus
Volume215
Issue number1
DOIs
StatePublished - Sep 2011

Fingerprint

diffraction
particulates
reflectance
prediction
predictions
approximation
bidirectional reflectance
surface reflectance
spikes
radiative transfer
micrometers
scattering
particle
effect

Keywords

  • Spectroscopy

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

On Hapke photometric model predictions on reflectance of closely packed particulate surfaces. / Zhang, Hao; Voss, Kenneth.

In: Icarus, Vol. 215, No. 1, 09.2011, p. 27-33.

Research output: Contribution to journalArticle

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