| Storm Hydrograph (talking partners) | ||
| | Back | | ||
| 1. What two variables are plotted on a hydrograph. which one is on the horizontal axis and why? What units are used for each axis? | ||
| 2. Why is the discharge continuing to fall during the period that the rainstorm is occurring? | ||
| 3. What is the 'lag'? Why is there a 'lag? | ||
| 4. Why is the rising limb so steep? What flow contributes to the rising limb? What factors contribute to a steep rising limb? | ||
| 5. What is the 'peak'? What factors contribute to a 'flashy' hydrograph (with a high peak)? | ||
| 6. What is 'quickflow' or storm flow'? | ||
| 7. Why is the receding limb (or falling limb) not as steep as the rising limb? | ||
| 8. What is another name for baseflow? Why is baseflow higher after a storm than it was before it? | ||
| 9. Why does a U.K. river (like the Usk) not dry up completely even if it does not rain for two weeks or more? | ||
| 10. Sketch a hydrograph for a river in a wadi (desert gorge) - that only flows when there is a flash flood. | ||