Log in using the username and password we sent you
Lost your password?
Question: Why do we have floods?
earth, flood, weather
Asked by victor9 to Austin, Kirsty, Nicola, Nike, Sarah on 21 Jun 2012.
answered on 21 Jun 2012:
Flooding can occur for a number of reasons. The two main ones are:
1) Too much rain in a short period of time can lead to flash floods. This is worsened if the ground is very dry and unable to absorb the water, or the drains are blocked.
2) If there is a particularly high tide and onshore wind, then the sea can flood low lying areas.
logan10 commented on 21 Jun 2012:
because of the impact on the wind
Log in to Reply
Kirsty commented on 22 Jun 2012:
Thank you for contributing. An onshore wind can create something called a storm surge. If you have a low lying area with a shallow coast, then the wind can drive the water into a wave that surges onto a floods the shore. Deep coast lines don’t experience this. It was one of the reasons that Hurricane Katrina was so devastating.
Why does the earth revolve around the sun and not the sun revolve around the earth?
Why is the earth the only planet with life?
How do hurricanes happen?
Why do we have earth quakes?