Flod notes

Drainage basins

• the area where all the precipitation accumulates is called a drainage basin

• the boundary in between basins is called a drainage divide

• rain falling on one side of the divide goes into one basin, where the rain falling on the opposite side goes into a different basin

• anytime there is t much precipitation in one drainage basin then there well be a flood

• can result from: melting snow, hail, rain water, ice storm or any other combination  

Tracking the Flood

• organisations track early flooding to help plan

• what dams or flood ways need to be built

• what areas are not good for building

• what areas need food relief credits ($)