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acid rain

acid rain   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
348 words
Illustration(s):
1

A form of *air pollution created by acid-forming reactions within the atmosphere involving gaseous pollutants, principally *sulphur dioxide

analysis

analysis   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008

Detailed examination of the state of the atmosphere based on synoptic observations, in particular for forecasting or research purposes. This

anticline

anticline   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

A common type of *fold in rock. It takes the form of a symmetrical fold, arched upward in the

anticyclone

anticyclone   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
277 words
Illustration(s):
1

A region of relatively high atmospheric pressure, also known as a high. On a synoptic chart, it

atmospheric pressure sensor

atmospheric pressure sensor   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
107 words
Illustration(s):
2

An advanced sensor under development to determine surface pressure from space. By monitoring several wavelengths, it measures the quantity of

atmospheric structure

atmospheric structure   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
152 words
Illustration(s):
1

The broadly horizontal layering of the *atmosphere, the layers being distinguished by differences in the rate of change

auroral zone

auroral zone   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008

The region, c.15–30° from each magnetic pole, with the greatest frequency of aurorae. The maximum frequency of aurorae at

back-bent occlusion

back-bent occlusion   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
102 words
Illustration(s):
1

An occlusion where the motion of the front reverses, being carried westwards or southwards (in the northern hemisphere) by the

baffle chamber

baffle chamber   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

A *dust collector in which a fixed baffle plate deflects the gas stream, causing it to lose energy so

barchan

barchan   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

A crescent‐shaped *dune form common in sandy deserts with winds that blow predominantly from one direction. The convex side

blocking anticyclone

blocking anticyclone   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008

A deep anticyclone that extends throughout the depth of the troposphere and tends to obstruct the normal passage of depressions

Campbell–Stokes sunshine recorder

Campbell–Stokes sunshine recorder   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

An instrument for measuring how long the Sun shines at a particular place, based on a glass sphere which focuses

carbon cycle

carbon cycle   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
209 words
Illustration(s):
1

The natural *biogeochemical cycle through which *carbon circulates through the *biosphere, *atmosphere, and *

col

col   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
113 words
Illustration(s):
1

The point on a weather map that lies between two depressions and two anticyclones, arranged alternately. The pressure distribution

cold-front wave

cold-front wave   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008

A common form of secondary depression that forms on a trailing cold front. More than one such depression may

cyclone collector

cyclone collector   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

A device with no moving parts that removes dust from waste gases. The velocity of an input gas stream is

depression

depression   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
267 words
Illustration(s):
1

An area of low pressure, characterized by closed isobars (approximately circular, elliptical, or oval in shape), accompanied by cyclonic circulation

drainage pattern

drainage pattern   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

The pattern displayed by a *river network, as seen from the air or on a map, which is

Earth

Earth   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
174 words
Illustration(s):
1

Our home planet, the fifth largest of the nine planets within the *solar system. It rotates around its

ecosystem

ecosystem   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Science and technology, Environmental Science, Earth Sciences and Geography
Length:
146 words
Illustration(s):
1

Short for ecological system, meaning the natural interacting *biotic and *abiotic system in a given area, which includes

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