The animation shows what the seafloor looks like off the coasts of Mexico, South ... map the seafloor. Its main purpose is to measure the height of water over oceans, rivers, lakes, and other ...

"The Mississippi is 'America's River,' flowing through the nation's heartland, providing drinking water ... on it. "South-central Alaska's Susitna River is one of the most pristine rivers in ...

A team has created the most complete map of the world's rivers ever made offering a major leap forward for flood prediction, climate risk planning, and water resource management in a warming world.