Convectional rainfall seems to occur when the heated air from the earth’s surface rises upwards along with the water vapor & gets condensed when it reaches a higher altitude. Here the clouds carrying the water vapor are not carried away by the wind and hence, it rains in the same place.
What is convectional rainfall also known as?
Convectional rainfall is also called 4 o ‘clock rain: Convectional rainfall is the result of high rate of evaporation. Then condensation takes place and rain falls. At mid-day, when the sun is at the highest position, the temperatures rise at the equator.
What is conventional rainfall in simple words?
Convectional rainfall occurs when the energy of the sun (or insolation) heats the earth’s surface and causes water to evaporate changing to water vapor. This warm, moist air then rises, and as it rises, it cools.
What is convectional rainfall 6th?
Convectional Rainfall – Major Characteristics
As the air rises, it expands and drops the temperature and subsequently, condensation takes place and cumulus clouds are formed. Heavy rainfall with lightning and thunder takes place which does not last long. Such rain is usually in the summer or the hotter part of the day.
What is convectional rainfall Where does it occur?
Convectional rainfall occurs in the Equatorial region. The Equatorial region receives a greater amount of solar radiation. When the energy of the sun heats up the earth’s surface, there is an evaporation of water, forming water vapour. The warm air above the land surface expands and rises.
How is convectional rain caused?
Convectional rainfall occurs when surface of the earth is heated up by the sun. The warm surface also heats up the air. As air rises it cools down and begins to condensate. Further rising and cooling causes a large amount of condensation to occur and rain is formed.
Why does convectional rainfall occur?
Convectional rainfall takes place when the sun’s energy heats the surface and so that water evaporates changing to water vapor. This moist and warm air then rises upwards and as it rises, it starts to cool. The air reaches a point known as condensation level where the water vapor condenses and turns back to liquid.
What season is convectional rainfall?
It occurs generally in the equatorial regions of the world. Other regions of convectional rainfall are middle latitudes on summer days.
What is convectional and orographic rainfall?
Convectional or convective rainfall occurs due to thermal convection currents caused by insolation heating of the ground surface. Orographic rainfall occurs due to the accent of air from highland. Cyclonic or frontal rainfall occurs due to upward movement of air caused by convergence of contrasting wind.
What are the types of rainfall Class 7?
Following are the three types of rainfall. 1. Convectional rainfall 2. Orographic rainfall 3. Cyclonic rainfall
- Convectional rainfall.
- Orographic rainfall.
- Cyclonic rainfall.
What is rainfall class 7th?
Precipitation is the process where water vapour condenses in the air and returns to the earth in form of rain, dew or snow. Rainfall is the most common form of precipitation and occurs in three different ways i.e. convectional rainfall, orographic rainfall and cyclonic rainfall.
What is frontal rainfall Class 7?
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. The air is cooled and so condenses to form a stratus cloud.
What is convectional rainfall Brainly?
Explanation: Convectional rainfall occurs when the energy of the sun (or insolation) heats the earth’s surface and causes water to evaporate changing to water vapor. This warm, moist air then rises, and as it rises, it cools.
What are heavy rains called?
Definitions of downpour. a heavy rain. synonyms: cloudburst, deluge, pelter, soaker, torrent, waterspout. type of: rain, rainfall.
Where is Convectional rain most common?
equatorial area
Convectional rainfall occurs in equatorial area. In this areas, the surface gets heated because of the sun’s heat and the air near it also get heated. As it get heated, it spreads and becomes lighter and moves upwards. Condensation of the water vapour takes place and results in rainfall.
Is convectional rainfall heavy?
Convectional rainfall-type occurs in equatorial regions. Rainfall is heavy and there can be some lightning or thunder. Convectional rainfall does not last long. This rainfall type occurs in the summer or during the warmer part of the day.
What clouds give convectional rainfall?
Cumulus clouds give convectional rainfall.
What is orographic rain answer?
orographic precipitation, rain, snow, or other precipitation produced when moist air is lifted as it moves over a mountain range. As the air rises and cools, orographic clouds form and serve as the source of the precipitation, most of which falls upwind of the mountain ridge.
What are orographic rains?
Orographic rainfall also called orographic precipitation or snow. Orographic rainfall is precipitation produced when the mountains of uplands act as barriers to airflow, forcing the air to rise and the moist air moving upslope coo down by producing clouds and precipitation.
What is rain gauge class 8?
A rain gauge is a meteorological instrument to measure the precipitating rain in a given amount of time per unit area. The instrument consists of a collection container which is placed in an open area.
What is precipitation Class 7 Brainly?
This phenomenon of water falling back onto the surface of the earth in the form of rain, snow or sleet is called precipitation.