WMS:Universal Rational Hydrograph: Difference between revisions
No edit summary |
No edit summary |
||
| Line 38: | Line 38: | ||
Notice that the peak occurs at <math>3*t_c<math>, and the time base is equal to <math>11*t_c</math>. | Notice that the peak occurs at <math>3*t_c</math>, and the time base is equal to <math>11*t_c</math>. | ||
[[Image:WMSImage81.gif]] | [[Image:WMSImage81.gif]] | ||
Revision as of 23:17, 7 March 2013
The Universal Rational Hydrograph uses a set of coefficients and the peak discharge to compute the hydrograph ordinates at different times. The coefficients are shown in the following table and the resulting hydrograph is displayed.
| ||
| Failed to parse (SVG with PNG fallback (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle t} /Failed to parse (SVG with PNG fallback (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle t_c} | Failed to parse (SVG with PNG fallback (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle Q} /Failed to parse (SVG with PNG fallback (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle Q_p} | |
|---|---|---|
| 0 | 0.00 | |
| 1 | 0.21 | |
| 2 | 0.30 | |
| 3 | 1.00 | |
| 4 | 0.54 | |
| 5 | 0.39 | |
| 6 | 0.25 | |
| 7 | 0.18 | |
| 8 | 0.15 | |
| 9 | 0.14 | |
| 10 | 0.13 | |
| 11 | 0.00 | |
Notice that the peak occurs at Failed to parse (SVG with PNG fallback (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle 3*t_c} , and the time base is equal to Failed to parse (SVG with PNG fallback (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle 11*t_c} .
where:
- Failed to parse (SVG with PNG fallback (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle t_c} = time of concentration.
- Failed to parse (SVG with PNG fallback (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle Q} = Flow at time , in cfs.
- = Peak flow.
Related Topics:
