What is the cause behind frontal rain? Frontal rainfall occurs when a warm front meets a cold front. The heavier cold air sinks to the ground and the warm air rises above it. When the
What is the cause behind frontal rain?
Frontal rainfall occurs when a warm front meets a cold front. The heavier cold air sinks to the ground and the warm air rises above it. When the warm air rises, it cools. The cooler air condenses and form clouds.
What is a frontal rainfall?
Frontal rain occurs when two air masses meet. When a warm air mass meets a cold air mass, they don’t mix as they have different densities (a bit like oil and water). Instead, the warm less dense air is pushed up over the cold dense air creating the ‘front’.
Where is frontal rainfall most common?
Frontal Rainfall This rainfall occurs when a warm, tropical air mass comes in contact with a cold, polar air mass. It is very common in Britain and Ireland. Because the air is in the warm front, then it rises over the cold front.
Why is frontal rainfall common in the UK?
Frontal rainfall The British Isles are affected by a number of different air masses . As the warm air is forced to rise it cools. Also, the warm air is in contact with the cold air along the fronts, and this also cools. Condensation occurs and clouds form.
What is the other name of frontal rainfall?
d) orographic rainfall is the correct answer . Explanation: Relief rainfall, also known as orographic rainfall, occurs in areas where land increases in height.
How does Convectional rainfall occur?
Convectional rainfall occurs when the heated air from the earth’s surface rises upwards along with the water vapour and gets condensed when it reaches a higher altitude. Here the clouds carrying the water vapour are not carried away by the wind and hence, it rains in the same place.
What is convection rainfall?
Convectional rainfall is a type of rainfall that involves the formation of convection currents. This rainfall occurs when the temperature gets high and the warmer air rises up in the atmosphere. On expansion, this air cools down and clouds are formed, which are generally cumulus clouds.
What are the 3 main causes of rainfall?
There are 3 main types of rainfall: relief, frontal and…
- Occurs mostly in tropics where it is hot.
- When air is hot is rises and cools and condenses forming rain.
- If the air is hot enough, it rises very quickly and can cause thunderstorms.
What time does Convectional rainfall occur?
In the equatorial regions, convectional rainfall is received almost daily in the afternoon. It generally happens regularly at 4 p.m. throughout the year. For this reason it is called 4’o clock rainfall. In the late afternoon the clouds burst into a heavy downpour often accompanied by thunder and lightning.