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Fig. 2 Landsat images of major dune morphological types. (a) straight single-crest longitudinal dunes in the southeast Great Sandy Desert. (b) straight multi-crest longitudinal dunes in the southeast Great Sandy Desert. (c) the transition from sharp straight single-crest longitudinal dunes (bottom) to broad crested dunes (top) in the far north of the Simpson Desert. (d) topographic steering of longitudinal dunes around inselbergs in the central northern Great Victoria Desert. (e) parabolic dunes (centre) in the Mallee dunefield with neighbouring short straight longitudinal dunes (top). (f) network dunes (with preferred orientation SE-NW) in the northwest Simpson Desert. (g) isolated mounds (centre) in the central north Great Victoria Desert surrounded by longitudinal dunes (southwest) and network dunes (northeast). (h) the only clear example of free transverse ridges in Australia from the southern Mallee Dunefield (dark, wooded area) with parabolic dunes (east and west) and short straight longitudinal dunes (north and south). All images oriented with north to top. Images (a)-(e) approximately 10 km east-west field of view; images (f)-(h) approximately 5 km east-west field of view.

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Paul Hesse
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