Definition
Albedo/color dichotomy occurs on a planetary surface, which is characterized by two spectrally different terrains of regional to hemispheric/global scale.
Synonyms
Category
A type of albedo feature
Formation
Albedo dichotomy may be related to partial coverage of the surface by liquids, frost, ices, fine-grained atmospheric dust, materials from space, or related to processes such as sublimation, high-energy particle impacts, differences in grain size, composition, or material age/maturity, etc.
Regional Variations
Moon
The Moon shows an albedo dichotomy of high-albedo terra/highland (impact ejecta) and low-albedo mare (Moon) (basaltic plains) surfaces.
Mars
The surface of Mars displays low-albedo terrains dominated by mafic sand-sized materials and high-albedo terrains covered by dust (Ruff and Christensen 2002; Albedo Feature: Mars).
Ganymede
Ganymede’s bimodal surface consists of young, bright, grooved terrain (Groove, Ganymede) and...
References
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Illés-Almár, E. (2014). Albedo/Color Dichotomy. In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_7-1
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DOI: https://doi.org/10.1007/978-1-4614-9213-9_7-1
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Albedo Dichotomy or Color Dichotomy- Published:
- 29 December 2014
DOI: https://doi.org/10.1007/978-1-4614-9213-9_7-2
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Albedo/Color Dichotomy- Published:
- 29 May 2014
DOI: https://doi.org/10.1007/978-1-4614-9213-9_7-1