describe the three types of rainfall cyclonic , relief , onvectional
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There are 3 main types of rainfall:relief, frontal and convectional.Describe each and give conditions when the occur. Relief rainfall occurs when air has been blown over the sea and is then forced up over an area of high land. This causes the air to cool and the moisture in the air condenses and rain falls.
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Cyclonic rainfall is caused by cyclonic activity and it occurs along the fronts of the cyclone. It is formed when two masses of air of different temperature, humidity and density meets.
Relief Rainfall usually occurs along coastal areas where a line of hills runs along the coast. When wet onshore wind from the sea meets a mountain, hill or any other sort of barrier, it is forced to rise along the slope and cools. When the air temperature falls to its dew point, water vapour condenses to form clouds.
-When the land warms up, it heats the air above it. This causes the air to expand and rise. As the air rises it cools and condenses. If this process continues then rain will fall. This type of rainfall is very common in tropical areas but also in areas such as South East England during warm sunny spells.This type of rainfall is called Conventional Rainfall.
Relief Rainfall usually occurs along coastal areas where a line of hills runs along the coast. When wet onshore wind from the sea meets a mountain, hill or any other sort of barrier, it is forced to rise along the slope and cools. When the air temperature falls to its dew point, water vapour condenses to form clouds.
-When the land warms up, it heats the air above it. This causes the air to expand and rise. As the air rises it cools and condenses. If this process continues then rain will fall. This type of rainfall is very common in tropical areas but also in areas such as South East England during warm sunny spells.This type of rainfall is called Conventional Rainfall.
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