Hydrology

Water covers 70% of the Earth's surface

Vew of Fernando de Noronha, Brazil

Hydrology ^[1] is the study of movement, distribution, and quality of water throughout the Earth.^[2] A person who studies hydrology is called a hydrologist.

The central theme of hydrology is how the water circulates. This is called the water cycle. The most vivid illustration of it is the water evaporation from the ocean with the formation of clouds. These clouds drift over the land and produce rain.^[3]

Hydrology Media

Rain over a Scottish catchment. Understanding the cycling of water into, through, and out of catchments is a key element of hydrology.
The Roman aqueduct at Caesarea Maritima, bringing water from the wetter Carmel mountains to the settlement.
Building a map of groundwater contours
A flood hydrograph showing stage for the Shawsheen River at Wilmington.
A standard NOAA rain gauge
Estimates of changes in water storage around the Tigris and Euphrates Rivers, measured by NASA's GRACE satellites. The satellites measure tiny changes in gravitational acceleration, which can then be processed to reveal movement of water due to changes in its total mass.

Related pages

Notes

↑ from Greek: Yδωρ, hudōr, "water"; and λόγος, logos, "study"
↑ "What is hydrology and what do hydrologists do?". Archived from the original on 2014-02-22. Retrieved 2011-03-11.
↑ "Basic Ground Water Hydrology". Archived from the original on 2010-12-13. Retrieved 2011-03-11.

[1] rom Greek: Yδωρ, hudōr, "water"; and λόγος, logos, "study"

[2] "What is hydrology and what do hydrologists do?". Archived from the original on 2014-02-22. Retrieved 2011-03-11.

[3] "Basic Ground Water Hydrology". Archived from the original on 2010-12-13. Retrieved 2011-03-11.

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