Theme 2 Definitions part 1 4.5 / 5 based on 2 ratings ? GeographyPhysical ProcessesGCSEWJEC Created by: Emma KerriganCreated on: 08-10-14 19:34 Weather The conditions of the atmosphere at a certain place and time 1 of 22 Climate The average weather taken over a period of years 2 of 22 3 types of rain Relief, frontal and convectional rainfall 3 of 22 Distance from the sea How far a place is from a major body of water 4 of 22 Prevailing winds The most common wind direction of a place 5 of 22 Altitude How high a place is above sea level 6 of 22 Latitude How far north or south a place is from the equator 7 of 22 Convectional rainfall The sun heats the ground which in turn heats the air above it which rises and cools, condenses and forms clouds resulting in rain 8 of 22 Relief rainfall Warm, moist air from the mountains is forced to rise which then cools, condenses, forms clouds and rains 9 of 22 Frontal rainfall When a warm air mass and a cold air mass meet, the warm air is forced to rise as it is less dense then CCC=P 10 of 22 Depressions An area of low pressure that brings cloud, wind and rain 11 of 22 Tropical cyclone Areas of intense low pressure also known as hurricanes, typhoons etc. 12 of 22 Storm surge A rise in sea level caused by high winds pushing on the oceans surface from low pressure weather systems 13 of 22 Anticyclone An area of high pressure caused by sinking air that brings clear skies and dry conditions 14 of 22 Drought A prolonged period of abnormally low rainfall 15 of 22 Ecosystem A community of animals, plants and micro-organisms together with the habitat in which they live 16 of 22 Habitat A place where plants and animals live 17 of 22 Environment All the conditions that surround any living organism 18 of 22 Population All the members of a single species that live in a habitat 19 of 22 Food web A diagram which shows how different food chains join together to make an ecosystem 20 of 22 Desertification The process by which dry or arid environments become more like a desert 21 of 22 ITCZ Inter-tropical convergence zone 22 of 22
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