From this week, researchers worldwide can follow the flow of rivers and height of lakes across the African continent from the comfort of their desks. A new web-based demonstration launched to ...

Envisat Tracking Africa's Rivers And Lakes To Help Manage Water Resources Date: October 16, 2005 Source: European Space Agency Summary: From this week, researchers worldwide can follow the flow of ...

Rivers often start in upland areas like this, from lakes, marshes and glaciers or even springs that bubble out of the ground. A river has a channel with banks on both sides and a bed.