On a hydrograph, why is the rising limb much steeper than the falling limb?

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Heyy to anyone who can answer this, just need some help for my geography hw, ty 4 any answers :D

Posted Sun 3rd March, 2013 @ 11:10 by Jess

1 Answer

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the rising limb is usuallly (but not always) steeper than a falling limb because when river levels are rising they are rising due to increased rainfall, but also surface run off from fields and also water from other smaller tributarty rivers, basically the river has a lot higher dicharge (a lot higher volume of water) when its rising cause a falling limb does not have the extra water from rainfall. hope this helps

Answered Sun 3rd March, 2013 @ 11:26 by Thegirlwhoknewtoomuch - Team GR