C0
C2
5
To Eagle R.
4
3
2
1
Gradients
(m/m)
0.0165
0.0070
0.0081
0.0143
0.0042
0.0059
0.0044
0.0014
0
350
50
100
150
200
250
300
Distance (m)
a. C0 to C2.
F0
F1
E0
5
To Eagle R.
4
3
2
1
0
Gradients
(m/m)
1
0.0099
0.0061 0.0044
0.0027
0.0045
0.0014
2
0
200
400
600
800
Distance (m)
b. E0 to F0 to F1.
Figure 49. Longitudinal profiles along two gully thalwegs (see Fig. 13). Gradients
along sections of the gullies are indicated.
Table 14. Summary of gully and river erosion monitoring.
Recession range (m)
92†
Area
Position*
Sum
Win 92
Sum 93
Win 93
Sum 94
Fall 94
Net erosion
Area A
(coast)
H
--
--
--
--
00.47
01.17
01.09
L
--
--
--
--
01.01
01.85
02.76
(interior)
H
--
--
--
--
01.59
--
01.59
L
--
--
--
--
01.01
01.17
01.17
Area B
H
--
--
--
--
0
0
0
L
--
--
--
--
0
0
0
Area C
H
0.093.06
0.170.37
0.043.79
0.131.35
01.16
0 1.17
0.049.30
L
04.90
06.30
0.179.80
02.08
02.57
01.03
0.278.17
Area D
H
0.016.95
0.050.35
04.31
00.61
02.10
03.77
0.044.61
L
02.37
02.00
03.12
02.29
02.23
03.77
08.15 **
Racine Isl.
H
--
--
--
--
0
0
0
L
--
--
--
--
0
0
0
River
L
--
--
--
--
02.32
02.03
03.69
* H --Head wall; L--Lateral wall.
†
Summer (Sum) represents period May to September; Winter (Win) represents period September to May.
** Measured change since Fall 1993.
38
Previous Page
