Noachis Quadrangle - Sand Dunes

Sand Dunes

• Dark dunes (probably basalt), in an intracrater dune field, Noachis. Picture from Mars Global Surveyor, under the MOC Public Targeting Program.

• Wide view of dunes in Noachis, as seen by HiRISE.

• Close-up View of dunes in previous image, as seen by HiRISE. Note how sand barely covers some boulders.

• Barchan sand dunes in the Hellespontus region, as seen by HiRISE. The horns point in the downwind direction.

• Proctor Crater ripples and dunes, as seen by HiRISE.