Io: Galileo evidence for major variations in regolith properties

Damon P. Simonelli, Joseph Veverka, Alfred S. McEwen

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Galileo SSI images taken at different times early in the Jupiter orbital tour show striking, widespread changes in Io's color and albedo patterns that result from observing the satellite's surface at different lighting and viewing geometries. Such changes indicate significant variations in the photometric or light-scattering behavior of the Ionian surface from region to region, and thereby provide strong evidence for major lateral variations in regolith properties. In particular, the regolith particles in Io's bright equatorial band appear to be larger than, or have a higher density of internal scatterers than, those in the satellite's higher-latitude regions. Such heterogeneity is not surprising on Io, given the rapid rate of volcanic resurfacing.

Original languageEnglish (US)
Article number97GL02506
Pages (from-to)2475-2478
Number of pages4
JournalGeophysical Research Letters
Volume24
Issue number20
StatePublished - 1997

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Io
regolith
satellite surfaces
light scattering
albedo
Jupiter (planet)
Jupiter
illuminating
polar regions
volcanology
color
geometry
orbitals
scattering

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Simonelli, D. P., Veverka, J., & McEwen, A. S. (1997). Io: Galileo evidence for major variations in regolith properties. Geophysical Research Letters, 24(20), 2475-2478. [97GL02506].

Io : Galileo evidence for major variations in regolith properties. / Simonelli, Damon P.; Veverka, Joseph; McEwen, Alfred S.

In: Geophysical Research Letters, Vol. 24, No. 20, 97GL02506, 1997, p. 2475-2478.

Research output: Contribution to journalArticle

Simonelli, DP, Veverka, J & McEwen, AS 1997, 'Io: Galileo evidence for major variations in regolith properties', Geophysical Research Letters, vol. 24, no. 20, 97GL02506, pp. 2475-2478.
Simonelli, Damon P. ; Veverka, Joseph ; McEwen, Alfred S. / Io : Galileo evidence for major variations in regolith properties. In: Geophysical Research Letters. 1997 ; Vol. 24, No. 20. pp. 2475-2478.
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