Rippled Surfaces on a Slope in Coloe Fossae
NASA/JPL/University of Arizona
Rippled Surfaces on a Slope in Coloe Fossae
ESP_033599_2160  Science Theme: Mass Wasting Processes
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This observation shows us a set of landforms that appears to form a nested “chevron” pattern on a slope in Coloe Fossae. Interestingly, nearby surfaces on the same slope are all parallel.

How do these form? Are they bedforms created by the wind? Why do some slopes have these features and others do not?

Further down the image, we see fretted terrain that’s mostly likely the result of glacial processes. The valley floor offers a stark contrast to the upper slopes and its delicate rippled landforms.

Written by: HiRISE Science Team   (9 January 2014)

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Acquisition date:26 September 2013 Local Mars time:14:31
Latitude (centered):35.778° Longitude (East):57.089°
Range to target site:292.9 km (183.0 miles)Original image scale range:58.6 cm/pixel (with 2 x 2 binning) so objects ~176 cm across are resolved
Map projected scale:50 cm/pixel and North is upMap projection:Equirectangular
Emission angle:0.8° Phase angle:41.6°
Solar incidence angle:42°, with the Sun about 48° above the horizon Solar longitude:27.3°, Northern Spring

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