Geoscience Reference
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Fig. 1.18 An image from the HiRISE camera of the Martian surface
(this image forms the dark blue background on the cover of this topic)
with aeolian features on three scales. The image shows a set of
barchan and dome-like dunes (see Chap. 6 ). Dominant at the right of
the image are sharp-crested ripples or TARs (see Chap. 5 ) . Close
examination will also reveal small ripples on the surface of the dunes.
Image U. Arizona/JPL/NASA
indicators, and how they affect infrastructure and mobility,
on Earth and other planets (including fictional ones). Along
the way, we provide images to illustrate particular points,
although as researchers entranced by the beauty of our sub-
ject, we have unashamedly included some images (like
Figs. 1.17 and 1.18 ), just because they are pretty.
 
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