WMS:Modified Rational Hydrograph: Difference between revisions
From XMS Wiki
Jump to navigationJump to search
No edit summary |
|||
| Line 1: | Line 1: | ||
The Modified Rational Hydrograph also assumes that the time to peak is equal to the <math>t_c</math>, but allows for the duration of the storm to be longer than <math>t_c</math>, resulting in a trapezoidal shaped hydrograph as shown below. A coefficient to modify the slope of the receding limb may also be applied with this method. | The Modified Rational Hydrograph also assumes that the time to peak is equal to the <math>t_c</math>, but allows for the duration of the storm to be longer than <math>t_c</math>, resulting in a trapezoidal shaped hydrograph as shown below. A coefficient to modify the slope of the receding limb may also be applied with this method. | ||
[[Image: | [[Image:ModifiedRationalHydrograph.gif]] | ||
where: | where: | ||
Revision as of 16:52, 29 April 2015
The Modified Rational Hydrograph also assumes that the time to peak is equal to the , but allows for the duration of the storm to be longer than , resulting in a trapezoidal shaped hydrograph as shown below. A coefficient to modify the slope of the receding limb may also be applied with this method.
File:ModifiedRationalHydrograph.gif
where:
- = time of concentration.
- = Flow at time , in cfs.
- = Peak flow.
- = falling limb coefficient
- = storm duration
Related Topics
WMS – Watershed Modeling System | ||
|---|---|---|
| Modules: | Terrain Data • Drainage • Map • Hydrologic Modeling • River • GIS • 2D Grid • 2D Scatter |  |
| Models: | CE-QUAL-W2 • GSSHA • HEC-1 • HEC-HMS • HEC-RAS • HSPF • MODRAT • NSS • OC Hydrograph • OC Rational • Rational • River Tools • Storm Drain • SMPDBK • SWMM • TR-20 • TR-55 | |
| Toolbars: | Modules • Macros • Units • Digitize • Static Tools • Dynamic Tools • Drawing • Get Data Tools | |
| Aquaveo | ||
