hydrology

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hydrologic cycle

Two illustrated divers are superimposed onto a photograph showing a lake underwater.

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Aurochs. Bos primigenius. Skeleton. Extinct animal. Skeleton of an Aurochs, an extinct wild ox.

6 Animals We Ate Into Extinction

Shadow of a man holding large knife in his hand inside of some dark, spooky buiding

7 of History's Most Notorious Serial Killers

Drinking water is poured into a glass.

Water Fluoridation: Just the Facts

Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere

Why Do Some Cicadas Appear Only Every 17 Years?

Dancers at a Cinco de Mayo festival at the Mission District, San Francisco, California. (Photo dated 2019.) holidays

Is Cinco de Mayo Mexico's Independence Day?

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

Amendments 1-10 to the Constitution of the United States constitute what is known as the Bill of Rights on an American flag.

What Is the Emoluments Clause?

hydrology: Related Content

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Photos and Videos

hydrologic cycle

Two illustrated divers are superimposed onto a photograph showing a lake underwater.

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Topics

Horton overland flow Dunne overland flow Ekman reversing water bottle chemical hydrology gauging station limnology hydrosphere water ocean hydrologic sciences oceanography hydrometeorology glaciology paleohydrology

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Key People

Pierre Perrault

French hydrologist

Robert E. Horton

American engineer

Domenico Guglielmini

Italian mathematician

Quiz

water glass on white background. (drink; clear; clean water; liquid)

Water and its Varying Forms

Cave pool thermal spring in Grjotagja Cave, near Myvatn lake in Iceland. Groundwater. Lava cave

Groundwater Quiz