17. 4.11 to 4.19 Pot holes site 1 to 9. 63-71. 18. 4.20. Downstream variation in
frequency of potholes 72. 19. 4.21. Downstream changes in radius and depth of.
ILLUSTRATIONS S.No.
Figure
TITLE
Page No.
No. 8
1
2.1
Location map of Dhul river basin
2
2.2
Stream network in Dhul river basin
10
3
2.3
Trend in annual total rainfall (1991 to 2004)
14
4
2.4
Heaviest rainfall (1991 t0 2004)
14
5
3.1
Land facets in the catchment
25
6
3.2
Absolute relief in the basin
27
7
3.3
Relative relief in the basin
28
8
3.4
Slope map
29
9
4.1 to 4.3
Channel cross sections
35 - 37
10
4.4
Downstream changes in width and depth ratio
39
11
4.5
Morphology and Sediment type of channel
45
bars in the lower sector of the channel. 12
4.6
Morphology and sediment type of point bars in
49
the channel 13
4.7
Shape analysis of channel bars in the middle
52
sector 14
4.8
Shape analysis of channel bar gravels in lower
53
sector 15
4.9
Shape analysis of channel bars in the middle sector
55
S.No.
Figure
TITLE
Page No.
Shape analysis of channel bar gravels in lower
56
No. 16
4.10
sector 17
4.11 to 4.19
Pot holes site 1 to 9
63-71
18
4.20
Downstream variation in frequency of potholes
72
19
4.21
Downstream changes in radius and depth of
73
pot holes 20
5.1 to 5.6
Sediment analysis of left bank site 1 to site 6
77-79
21
5.7 to 5.18
Sediment analysis of right bank site 1 to 12
80-85
22
5.19
Downstream variations in the properties of left
89
bank sand deposits 23
5.20
Downstream variations in properties of
89
right bank sand deposits 24
6.1 to 6.6
Channel morphology and channel features
94-99
along Dhul river channel 25
6.7
Features along the rock bed and gravel bed
101
channel of Dhul river 26
6.8
Channel shift in upper reach (In last 2 decades)
102
LIST OF TABLES S.NO.
TABLE NO
1
2.1
TITLE
Climatic data showing rainfall parameters
Page No.
7
from 1991 to2004 2
3.1
Stream order and number
18
3
3.2
Area ratio
21
4
3.3
Stream frequency
21
5
3.4
Drainage density
23
6
4.1
Downstream changes in Width and Depth
35
ratio 7
4.2
Velocity measurements in September 2007
41
8
4.3
Velocity measurements in August 2008
41
9
4.4
Morphological and statistical measures of
44
channel bars. 10
4.5
Analysis of Sand component on channel
47
bars. 11
4.6
Analysis of sand component on point bars.
50
12
4.7
Vegetation on Channel bar
59
13
4.8
Radius of potholes (cm)
62
14
4.9
Depth of potholes (cm)
62
15
4.10
Shape analysis of pothole material
72
16
4.11
Relative height of knick points
73
17
4.12
Suspended sediment
74
18
5.1
Sediment analysis of bank material
86
PHOTOGRAPHS SR. NO.
PHOTO NO.
PHOTO
PAGE NO Between
1
1
Rock bed near confluence
14-15
2
2
Rock bed near the confluence comprising of pot holes and
14-15
structural features 3
3
Catchment of the river – view towards east
23-24
4
4
River basin – rounded hill slopes of water divide
23-24
5
5
Rockbed and gravel bed channel 3 km downstream
32-33
6
6
Channel sector charcterised by pools and boulder deposits
32-33
7
7
Flood channel in monsoon near confluence
43-44
8
8
Rapids in the river stretch in monsoon
43-44
9
9
Relatively extensive channel bar 5.6 km distance
44-45
downstream 10
10
Heterogeneous deposits in the channel near Titeghar
44-45
11
11
Point bar deposits near Ambawade
48-49
12
12
A well defined point bar 8.6 km distance downstream
48-49
13
13
Vegetation on channel bar near confluence
54-55
14
14
Column of bank deposits on the right bank near confluence
54-55
15
15
Narrow terraces near confluence
58-59
16
16
Terrace showing two levels near the bank and 2.3 m above 58-59 the lower terrace
17
17
95 cm wide pot hole containing water near confluence
60-61
18
18
Dry, large size pot hole near Ambawade
60-61
19
19
Bed furrowed by 15 cm deep pot holes near confluence
61-62
20
20
Pot hole near the confluence consisting of heterogeous
61-62
material 21
21
Plunge pool of waterfall near Ambawade
62-63
22
22
The bed is characterised by knick and waterfalls near