River discharge is affected by different factors.
The more water that flows as runoff, the shorter the lag time will be. This means discharge will increase because more water gets to the channel in a shorter space of time.
Examples of different factors that can affect discharge are:
- Amount and type of rainfall
- Previous weather conditions
- Rock type
- Land use
- Relief (how the height of the land changes)
1) Amount and type of rainfall - Lots of rain and short, heavy periods of rainfall means there's more runoff. Lag time is decreased, so discharge increases.
2) Temperature - Hot, dry…