Definition
Circular to elliptical, relatively flat mounds often without external slip faces.
Synonyms
Morphometry
On Mars, they are 40–100 m across and <30 m high with 100–1,000 m spacing (De Hon 2006).
Formation
They may form when wind velocities are low (Pye and Tsoar 1990 and references therein). Dome dunes may transform into other dune forms. Computer modeling (Parteli et al. 2009) suggests that dome dunes may form if the wind oscillates between two prevailing directions with a period shorter than 0.01 % of the dune’s turnover time, which is the time needed for the dune to cover a distance equal to its own size.
Domes may also be dunes smaller than the critical size for a barchan development where slip faces and horns are not able to evolve (Parteli 2007).
On Mars, dome dunes are smaller (<100 m across) than adjacent barchans (>100 m) (De Hon 2006; Fig. 1). The occurrence of dome dunes in Chasma Boreale in the northern polar region of Mars might be...
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References
Bristow CS, Jol HM, Augustinus P, Wallis I (2010) Slipfaceless ‘whaleback’ dunes in a polar desert, Victoria Valley, Antarctica: insights from ground penetrating radar. Geomorphology 114:361–372
De Hon RA (2006) Transitional dune forms on Mars. Lunar Planet Sci Conf XXXVII, abstract #1361, Houston. http://elib.uni-stuttgart.de/opus/volltexte/2007/2964/
Herrmann HJ, Durán O, Parteli EJR, Schatz V (2008) Vegetation and induration as sand dunes stabilizators. J Coast Res 24(6):1357–1368. doi:10.2112/08A-0011.1
Mainguet M (1984) A classification of dunes based on aeolian dynamics and the sand budget. In: El-Baz F (ed) Deserts and arid lands. Martinus Nijhoff, The Hague, pp 31–58
Parteli EJR (2007) Sand dunes on Mars and on Earth. Dissertation. Institut für Computerphysik der Universität Stuttgart
Parteli EJR, Durán O, Tsoar H, Schwämmle V, Herrmann HJ (2009) Dune formation under bimodal winds. Proc Natl Acad Sci 106:22085–22089
Pye K, Tsoar H (1990) Aeolian sand and sand dunes. Unwin Hyman, London, p 396
Schatz V, Tsoar H, Edgett K, Parteli EJR, Herrmann HJ (2006) Evidence for indurated sand dunes in the Martian north polar region. J Geophys Res Planet 111. doi:10.1029/2005JE002514
Tirsch D (2008) Dark dunes on Mars. Dissertation, Freie Universität Berlin. http://www.diss.fu-berlin.de/diss/receive/FUDISS_thesis_000000008848
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Parteli, E.J. (2014). Dome Dune. In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_113-2
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DOI: https://doi.org/10.1007/978-1-4614-9213-9_113-2
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