Characteristics of convectional rainfall
What is the main cause of convectional rainfall?
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.
What are the characteristics of orographic rainfall?
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.
Which characteristic is not found in the convectional rainfall?
Solution(By Examveda Team)
Drizzling characteristics is NOT found in the convectional rainfall. Drizzle consists of very small raindrops, larger than cloud droplets, but smaller than normal raindrops.
What is the definition of convectional rainfall?
noun [ U ] heavy rain caused by the surface of the atmosphere becoming hotter and causing damp (= slightly wet) air to rise.
What is the difference between convectional and orographic rainfall?
Convective precipitation is generally more intense, and of shorter duration, than stratiform precipitation. Orographic precipitation occurs when moist air is forced upwards over rising terrain and condenses on the slope, such as a mountain.
What are the 3 main types of rainfall?
There are three different types of rainfall: relief. convectional. frontal.
What is the other name of convectional rainfall?
4. Such rainfall is known as convectional rainfall which occurs mainly in the northern hemisphere, predominantly in the tropical regions. This type of rainfall is known as cyclonic rainfall and generally occurs in the coastal areas of the world.
Where is convectional rainfall found?
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.
What type of rain is convectional rain?
Convectional rainfall is a kind of rainfall that occurs when the heated air from the surface rises along with the water vapour and gets condensed after reaching a higher altitude. Since the cloud carrying these vapours is not carried away due to the wind, the rain falls in the same place.
What is orographic rainfall explain with certain examples?
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 the other name of orographic rainfall?
Orographic precipitation, also known as relief precipitation, is precipitation generated by a forced upward movement of air upon encountering a physiographic upland (see anabatic wind).
Why is orographic rainfall called relief rainfall?
When the saturated air his obstructed by land form barrier such as mountains, it is forced to ascend and as it rises, it expands and temperature falls. As a result, condensation takes place and rainfall occurs. This type of rainfall is called as relief rain or orographic rainfall.
What is an example of the orographic effect?
As an example, the North Shore mountains immediately north of Vancouver often experience heavy rain and snowfall due to orographic uplift. Winds approaching those mountains often do so approximately perpendicular (at right angles) to them, so the mountains form the barrier necessary for this effect.
What is relief and convectional rainfall?
Relief rainfall occurs in hilly or mountainous places, such as Wales, Scotland, the Alps and the Rockies. Places at the foot of hills or mountains which do not face the prevailing wind are in the rainshadow and do not get very much rainfall. Convectional rainfall 1 Hot sun heats any water on the ground.
What type of rainfall is received in hilly areas?
Orographic or relief rain. When air is forced to rise over land, particularly higher ground such as hills and mountains, it cools as the pressure falls. Dry air cools at 9.8°C per 1000m it rises.