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Experiments examining the shapes of isolated bars in comparison with those occurring in braided riversSand bars and islands within braided rivers have characteristic rhomboid or diamond shapes, often becoming very complex in form as the density of islands increases. Similar forms are observed in the martian outflow channels where the islands occur in groups. This contrasts with the more isolated martian islands which have airfoil shapes, as do isolated streamlined islands in rivers and in the Channeled Scabland. These observations indicate that the bar and island forms are controlled by the density of the islands, with increasing island interaction and flow modification as the density increases. As a continuation of previous flume experiments on the shapes of isolated islands, a new series of experiments investigate the modifications produced by a progressive increase in island density, finally leading to a true braided system.
Document ID
19840015435
Acquisition Source
Legacy CDMS
Document Type
Other - Other
Authors
Komar, P. D.
(Oregon State Univ. Corvallis, OR, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1984
Publication Information
Publication: NASA. Washington Rept. of Planetary Geol. Programs
Subject Category
Earth Resources And Remote Sensing
Accession Number
84N23503
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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