Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
These are the Problems of Advanced Hydrology which includes Excess Ordinate, Data, Area Method, Histogram, Calculation, Contribution etc.Key important points are: Curve Method, Spreadsheet, Column Lagged, Adding Columns, Fairly Constant, Lagged, Unit Hydrograph
Typology: Exercises
1 / 6
This page cannot be seen from the preview
Don't miss anything!
Time (hr) 2-hr UH ordinate (cfs) 0 0 1 75 2 250 3 300 4 275 5 200 6 100 7 75 8 50 9 25 10 0
Make a spreadsheet with the 2-hr UH ordinates, then copy them in the next column lagged by D= hours. Keep adding columns until the row sums are fairly constant. The sums are the ordinates of your S-curve
Docsity.com
Time (hr)
2-hr UH
2-HR lagged UH’s Sum
Docsity.com
Time (hr) S-curve ordinate
S-curve lagged 3hr
Difference 3-HR UH ordinate 0 0 0 0 1 75 75 50 2 250 250 166. 3 375 0 375 250 4 525 75 450 300 5 575 250 352 216 6 625 375 250 166. 7 650 525 125 83. 8 675 575 100 66. 9 675 625 50 33. 10 675 650 25 16. 11 675 675 0 0
Docsity.com
Find the one hour unit hydrograph using the excess rainfall hyetograph and direct runoff hydrograph given in the table
Time (1hr) Excess Rainfall (in) Direct Runoff (cfs) 1 1.06 428 2 1.93 1923 3 1.81 5297 4 9131 5 10625 6 7834 7 3921 8 1846 9 1402 10 830 11 313
Docsity.com
