Rover data can provide important constraints on the possible origin of wind‐related martian features that have been termed “Transverse Aeolian Ridges” (TARs). The large aeolian bedform traversed by Curiosity at Dingo Gap has a planform and albedo similar to members of nearby TAR fields, so that the crossing at Dingo Gap revealed the surface characteristics of a small TAR. Mars Hand Lens Imager images documented 1–2 mm diameter, well‐rounded particles on the Dingo Gap bedform, along with numerous images obtained from the Mastcam, Hazcam, and Navcam science and engineering cameras on the rover. These images confirm that this feature (and, by extension, all small TARs) can be considered a megaripple whose surface is coated by rounded particles that are too large to be set into motion through saltation, but they may be induced to roll (creep) along the surface by the impact of saltating sand grains (a characteristic of megaripples on Earth). The images also confirm that a bimodal wind was present here, a condition that could have contributed to the symmetrical profile of the bedform. The bearing strength at Dingo Gap was better than that of the Purgatory megaripple that trapped Opportunity for several weeks, so that all megaripples should not be automatically presumed to represent a trafficability hazard for a rover.

中文翻译：

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丁戈峡：好奇心向上走了一个小的横向风积脊并降落了一个巨型波纹

流浪者数据可以对与风相关的火星特征的可能起源提供重要的约束，这些火星特征被称为“横向风成岭”（TARs）。好奇心在丁戈峡横穿的大型风成岩床状地貌和反照率与附近的TAR田地相似，因此在丁戈峡的相交揭示了小TAR的表面特征。Mars Hand Lens Imager图像记录了直径为1–2 mm的直径，Dingo Gap床形上的圆形颗粒以及从流动站上的Mastcam，Hazcam和Navcam科学和工程相机获得的大量图像。这些图像证实了这一特征（以及所有小的TAR），可以认为是一个巨型波纹，其表面覆盖有圆形颗粒，这些圆形颗粒太大而无法通过盐化而运动，但是由于盐分沙粒（地球上巨大波纹的特征）的影响，它们可能会沿着表面滚动（蠕变）。图像还证实这里存在双峰风，这种情况可能有助于床形的对称轮廓。Dingo Gap的承受力要比炼狱巨乳的机会强度好几个星期，因为炼狱巨乳会抓住机会，因此不应自动假定所有的巨乳都对流动站构成交通危险。