纵向沙丘 longitudinal dune
sword dune
- 纵向或者赛夫沙丘是与强风平行的沙丘,风总是以相同方向刮过。
Longitudinal or seif dunes are dunes that are parallel to a strong wind that blows in one general direction. - 沙丘走向有横向(NE-SW)和纵向(NW-SE)以及多风向形成的不规则形。
Shifting of dune had horizontal direction (NE SW) and longitudinal direction(NW SE) and irregular formation formed with varied wind direction.