Global Distribution of Rainfall (Leaving Cert Geography): Flashcards

Solar heating, air pressure, ocean proximity, topography

2,000-3,600 mm

Direct solar heating causes warm air to rise, cool, and condense

Convectional rainfall

Seasonal variation, often monsoonal pattern

Approximately 1,100 mm

500-1,500 mm

Four distinct seasons; wetter autumn/winter, drier summers

100-500 mm

Distance from oceans and rain shadow effect

Mountains block moist air, creating dry leeward conditions

200-400 mm

Cold air holds very little moisture

Approximately 750 mm

2,300-3,600 mm