Time (hours)

Flow (m^3/s)

S-curve

0
2
4
6
8
10
12
14

0
117
197
145
109
64
21
0

0
117
197
262
306
326
327
326

Time (h...
Time (hours)

Flow (m^3/s)

0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32

0
117
197
145
109
64
21
0

Successive 4-hr lags...
250.00

200.00

150.00
6 hr UH
100.00

4 hr UH

2 hr UH
50.00

0.00
0
-50.00

2

4

6

8

10

12

14

16
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S-curve analysis for development of hydrographs

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- for development of hydrographs
- Its just an example

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S-curve analysis for development of hydrographs

  1. 1. Time (hours) Flow (m^3/s) S-curve 0 2 4 6 8 10 12 14 0 117 197 145 109 64 21 0 0 117 197 262 306 326 327 326 Time (hours) Flow (m^3/s) S-curve 0 2 4 6 8 10 12 14 0 117 197 145 109 64 21 0 0 117 197 262 306 326 327 326 S-curve lagged 6hr 0 117 197 262 306 S-curve lagged 2hr 0 117 197 262 306 326 327 Diff 6 hr UH ordinates (m^3/s) 0 117 197 262 189 129 65 20 0.00 78.00 131.33 174.67 126.00 86.00 43.33 13.33 Diff 2 hr UH ordinates (m^3/s) 0 117 80 65 44 20 1 1 0.00 234.00 160.00 130.00 88.00 40.00 2.00 2.00
  2. 2. Time (hours) Flow (m^3/s) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 0 117 197 145 109 64 21 0 Successive 4-hr lags 0 117 197 145 109 64 21 0 0 117 197 145 109 64 21 0 0 117 197 145 109 64 21 0 0 117 197 145 109 64 21 0 0 117 197 145 109 64 21 SUM 0 117 197 145 109 0 117 197 0 0 117 197 262 306 326 327 326 327 326 327 326 327 326 327 326 327 S curve (4 hr UH) 350 300 250 200 S curve (4 hr UH) 150 100 50 0 0 2 4 6 8 10 12 14 16
  3. 3. 250.00 200.00 150.00 6 hr UH 100.00 4 hr UH 2 hr UH 50.00 0.00 0 -50.00 2 4 6 8 10 12 14 16

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