Origin of the two scales of wind ripples on Mars

Mathieu Gaetan Andre Lapotre1, Ryan C. Ewing2, Michael P Lamb3, Woodward W Fischer4, John P Grotzinger5, David M Rubin6, Kevin W Lewis7, Matthew Ballard2, Mackenzie D Day8, Sanjeev Gupta9, Steven Banham10, Nathan Bridges11, David J Des Marais12, Abigail Fraeman13, John A Grant III14, Douglas W Ming15, Michael Mischna16, Melissa S Rice17, Dawn Y Sumner18, Ashwin R Vasavada16 and R Aileen Yingst19, (1)Stanford University, Earth and Planetary Sciences, Stanford, CA, United States, (2)Texas A&M University, College Station, TX, United States, (3)California Institute of Technology, Geological and Planetary Sciences, Pasadena, United States, (4)Caltech, Division of Geological and Planetary Sciences, Pasadena, United States, (5)California Institute of Technology, Pasadena, CA, United States, (6)University of California-Santa Cruz, Santa Cruz, CA, United States, (7)Johns Hopkins University, Earth and Planetary Sciences, Baltimore, MD, United States, (8)University of Washington Seattle, Seattle, United States, (9)Imperial College London, London, SW7, United Kingdom, (10)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (11)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (12)NASA Ames Research Center, Exobiology Branch, Moffett Field, CA, United States, (13)NASA Jet Propulsion Laboratory, Pasadena, United States, (14)Smithsonian National Air and Space Museum, Center for Earth and Planetary Studies, Washington, DC, United States, (15)NASA Johnson Space Center, Houston, TX, United States, (16)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (17)Western Washington University, Bellingham, WA, United States, (18)University of California, Davis, Earth and Planetary Sciences, Davis, United States, (19)Planetary Science Institute, Tucson, AZ, United States