ph.D. thesis Geography Savita kulkarni - Shodhganga

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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

62-63

Ambawade 23

23

Rock overhang in the channel near Mhakoshi

72-73

24

24

Deep cut of rock channel near Ambawade

72-73