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Human geography

Geographical events related to human actions.

Contributors in Human geography

Human geography

albedo

Geography; Human geography

The reflectivity of a surface, often expressed as a percentage of the solar radiation that falls on the Earth's surface. The average global albedo is about 34% (i.e. that percentage of the total ...

alluvial fan

Geography; Human geography

A fan-shaped mass of alluvium (sand, gravel, cobbles and sometimes boulders) formed where a rapidly flowing stream leaves a steep and narrow valley and enters a lowland or broad valley. At such ...

alluvium

Geography; Human geography

This describes the sediments laid down by streams. Alluvium is unconsolidated material forming features such as alluvial fans, flood plains, river terraces and deltas. The most common constituents ...

Alonso model

Geography; Human geography

A model developed by Alonso in the 1960s to explain the paradox observed in many cities that poor people tend to live close to the city centre on high-value land, while the rich occupy cheaper land ...

alp

Geography; Human geography

A high-level bench or gently sloping area standing above a deep U-shaped valley. Alps are sometimes interpreted as the remaining parts of preglacial valleys, left upstanding as a result of intense ...

alpine glacier

Geography; Human geography

A long, tongue-like valley glacier occupying a clearly defined mountain valley, typical of the European Alps. The glacier is nourished by an accumulation zone (or firn basin) which may comprise a ...

alternative energy

Geography; Human geography

Renewable sources of energy that offer an alternative to fossil fuels and nuclear power. These include geothermal heat, and solar, tidal and wind power. Given that fossil fuels are non-renewable, and ...

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