Geoscience Reference
In-Depth Information
a
b
Flow direction
c
d
Fig. 34 Measurements inside the scour hole. (a) Scour hole - downstream view, (b) graduated
object for image calibration, (c) camera positioning, and (d) image acquired for calibration
45°
700
30°
Flow
D=48
62
67
Fig. 35 Vertical measuring planes in the scour hole.
Top
: view from above.
Dashed line
stands for
negative bed elevations.
Bottom
: side view, location of images and their dimensions.
Left
: vertical
plane in the symmetry axis and at 30
.
Right
: inside the scour hole, vertical plane at 45
from the
symmetry axis. Dimensions in milimeters
