Publication Year: 2011 / Source: 2011 v.331 no.6017 / Subject: dunes / Text Availability: Citation in PubAg

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Author:: Hansen, C.J.; Bourke, M.; Bridges, N.T.; Byrne, S.; Colon, C.; Diniega, S.; Dundas, C.; Herkenhoff, K.; McEwen, A.; Mellon, M.; Portyankina, G.; Thomas, N.
Source:: Science 2011 v.331 no.6017 pp. 575-578
ISSN:: 0036-8075
Subject:: carbon dioxide; climate; dunes; environmental factors; image analysis; ravines; sand; spring; sublimation; wind
Abstract:: ... Despite radically different environmental conditions, terrestrial and martian dunes bear a strong resemblance, indicating that the basic processes of saltation and grainfall (sand avalanching down the dune slipface) operate on both worlds. Here, we show that martian dunes are subject to an additional modification process not found on Earth: springtime sublimation of Mars' CO₂ seasonal polar caps. ...
DOI:: 10.1126/science.1197636
: http://dx.doi.org/10.1126/science.1197636