Water in the UK
Water in the UK

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Water in the UK

S278_17 Glossary


S278_17 Glossary
Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

H

Humidity

A measure of how close air is to saturation with water vapour.

Permalink: Humidity

Hydraulic conductivity

A measure of the volume of water that will flow through a unit cross-sectional area of rock per unit time, under a unit hydraulic gradient and at a specified temperature: K in the

Darcy’s law equation.

Permalink: Hydraulic conductivity

Hydraulic gradient

The slope of a water table.

Permalink: Hydraulic gradient

Hydrological cycle

Another name for the water cycle.

 

Permalink: Hydrological cycle

Hydrologically effective precipitation

The quantity of water available from underground or from rivers in an area, given by the excess of precipitation over actual evapotranspiration.

Permalink: Hydrologically effective precipitation

Hydrology

The study of water movement on and beneath the ground, and the physics and chemistry of water.

Permalink: Hydrology

Hydrosphere

The parts of the Earth that are mainly composed of water.

Permalink: Hydrosphere


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