Annual Stream Hydrographs
The hydrograph to the right displays stream discharge during one-year periods for 6 American rivers in the 1990s.

(If you are not sure about the location of these rivers, click HERE.)

Click the radio buttons to select the hydrographs of the different rivers. Pay partricular attention to the different discharge patterns for each river. For example, some have peak discharge during winter storms whereas others have peak discharge episodes during the springtime snow-melt. Then complete the table below. (Some answers are already recorded.)