图8. 火星奥林匹亚沙漠峡谷冰冻障碍物沙丘(来源:NASA/JPL/UA)HiRISE SP_036669_2610_RED,中心点位置:102.22°E,80.81°N;箭头代表沙丘发育风向
Fig.8. Frosted dunes in Olympia Canyon of Mars (source: NASA/JPL/UA)HiRISE SP_036669_2610_RED,center point:102.22°E,80.81°N;Arrows represent the wind direction of dune development