Geoscience Reference
In-Depth Information
Flow expansion and deceleration
Convex streamline curvature
Decreased sand transport rates
Flow acceleration
Convex streamline curvature
Increasing wind shear velocity
Exponential increase in sand transport rate
Flow separation and diversion
Flow stagnation
and deceleration
Concave streamline
curvature
Flow reattachment
and recovery
Deposition
Deposition
Net erosion
Net erosion
To e
Stoss or windward slope
Crest
Brink
Lee slope
Wind speed up on stoss slope
2.5
Linear Dunes
Crescentic Dunes
Star Dunes
2.0