Hydrology and Fluvial Geomorphology Quiz

What is the equation for calculating river discharge?

• Discharge = (cross-sectional) area x (average) velocity

• Discharge = (cross-sectional) area / (average) velocity

• Discharge = time x (average) velocity

Define the term Drainage Basin

• an area or ridge of land that separates waters flowing to different rivers, basins, or seas.

• Area of land that is drained by a river and its confluences

• Area of land that is drained by a river and its tributaries

Is the hydrological cycle an open or closed system?

• Open

• Closed

Define the term Potential Evapotranspiration (EVT)

What are the two types of hydrographs we learn about?

• Raster Hydrograph

• Annual hydrograph (river regime)

• Storm/ Flood hydrograph

• Direct Runoff hydrograph

What does the time lag show on a storm hydrograph

Which of the following is a factor that affects hydrographs (select all that apply):

• quantity/ type of vegetation

• land use

• rock type

• all of the above

What effect does urbanisation on hydrographs have on the peak flow and time lag

• INCREASES peak flow and DECREASES time lag.

• DECREASES peak flow and INCREASES time lag.

What are the ways load is transported in a river (list all 4)

What does the Hjulstorm Curve show

• the relationship between stream velocity and ability of river processes on particular sized particles

• Shows how over time a river changes

• Shows the amount of work a river does

• Shows how much time the load takes to be transported to the mouth of a river.