Physical geography

Physical geography

Contributors in Physical geography

Physical geography

The tilt of the earth means that during an orbit cycle the line of latitude receiving the most concentrated insolation igrates-between the tropics. On 21st june, the sun is most directly above the ...

salt marsh

Geography; Physical geography

An area of semi-vegetated tidal mudflat that becomes increasingly vegetated as sediments accumulate in sheltered waters allowing salt-tolerant plants to colonise them.

laterite

Geography; Physical geography

See hardpan.

gravitational water

Geography; Physical geography

The water in the soil that is unavailable to plants and which flows out of the soil as throughflow to the river channel or percolates into the rock below.

swamp

Geography; Physical geography

An area, usually vegetated, permanently flooded or at least saturated by groundwater.

pan

Geography; Physical geography

(1) Collection of chemicals found in photochemical smog - See peroxyacyl nitrates (PAN). (2) Compact soil horizon that has a high clay content. (3) Large natural basin or depression found in desert ...

humidity

Geography; Physical geography

The water vapour content of the atmosphere. Two main measures are absolute humidity and relative humidity. Humidity is controlled by air temperature (the higher the temperature the more water vapour ...