Hydrology

Hydrology is a branch of geography that studies the properties of water on Earth, especially its movement in relation to land.

Aralkum Desert: The World’s Newest Desert

Caitlin Dempsey

Replacing the shrinking areas of the Aral Sea, the Aralkum Desert is located in Uzbekistan and Kazakhstan, making it the world's youngest desert.

Satellite image showing the changing river patterns of the Amazon River. Image: NASA, public domain.

How Rivers Change the Landscape

Elizabeth Borneman

Rivers twist and turn, shaping the environment around them just as the physical geography of the surrounding landscape shapes them.

Paraná River

Caitlin Dempsey

The Paraná River runs 3,030 miles through Brazil, Paraguay and Argentina.   It originates at the junction of the Paranaiba and the Rio Grande rivers.  ...

Mississippi River

Caitlin Dempsey

The Mississippi River is the second longest river in North America.  Bodies of water from 31 contiguous states drain into ...

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