反向沙丘近地层气流变化及其对沙丘形态的影响

潘凯佳, 张正偲, 梁爱民

The characteristics of inner boundary layer airflow over reversing dunes and its effect on dune morphological evolution

Kaijia Pan, Zhengcai Zhang, Aimin Lang

表2 沙丘迎风坡、脊线和背风坡0.25 m和0.5 m高度风向（°）差值

Table 2 The difference of wind direction at 0.25 m and 0.5 m for dune toe, crest, and leeward

丘顶风向 脊线 背风坡中部 背风坡底部 迎风坡底部 285°—294° -10 -2 15 51 295°—304° -18 -8 18 48 305°—314° -5 -2 8 0 315° 2 7 -8 -3 316°—325° 2 10 -13 -4 326°—335° 1 3 -10 3 336°—345° 1 0 -39 6 346°—355° 2 -1 10 4