Which mechanism is responsible for the occurrence of rainfall in India?
The monsoon rainfall is greatly influenced by the Arabian Sea surface temperature. Numerical simulations have shown that a cold sea decreases the evaporation rate, increases the surface pressure, in turn reducing the cross-equatorial flow and the moisture flux.
What is orthographic 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.
What mechanisms are required for the formation of precipitation?
Most rain actually begins as snow high in the clouds. As the snowflakes fall through warmer air, they become raindrops. Particles of dust or smoke in the atmosphere are essential for precipitation. These particles, called “condensation nuclei,” provide a surface for water vapor to condense upon.
What are the 3 causes of rain?
There are 3 main types of rainfall: relief, frontal and…
- Frontal rainfall occurs when warm air is forced to rise over cold air.
- The moisture in the warm air condenses as it cools which causes clouds and rain.
Where is highest rainfall in world?
The average annual rainfall in Mawsynram, which is recognised as the world’s wettest by the Guinness Book of Records, is 11,871mm – more than 10 times the Indian national average of 1,083mm.
What are the 3 types of rain?
There are three different types of rainfall:
What are the 3 main types of precipitation?
The most common types of precipitation are rain, hail, and snow.
What are the two forms of precipitation?
The most common types of precipitation are rain, hail, and snow. Rain is precipitation that falls to the surface of the Earth as water droplets. Raindrops form around microscopic cloud condensation nuclei, such as a particle of dust or a molecule of pollution.
What is the main mechanism of precipitation?
Mechanisms. Precipitation occurs when local air becomes saturated with water vapor, and can no longer maintain the level of water vapor in gaseous form. This occurs when less dense moist air cools, usually when an air mass rises through the atmosphere.
What three types of rainfall are distinct?
Based on the sources for the uplifting of the air, three main types of rainfall exists.
- Convectional rainfall.
- Cyclonic/Frontal rainfall.
- Orographic/Relief rainfall.
Which country has no rainfall?
But the driest non-polar spot on Earth is even more remarkable. There are places in Chile’s Atacama Desert where rain has never been recorded—and yet, there are hundreds of species of vascular plants growing there.
How does the mechanism of rainfall work Wiki?
Answer Wiki. It is basically a process by which water is transferred from the land to the atmosphere by evaporation from soil and other surfaces and by transpiration from plants. This process we get humidity or water vapor in the air.
What is acid rain and how is it formed?
What is acid rain and how is it formed? Acid rain occurs when certain emissions come into contact with the water of the atmosphere.
How does acid rain affect the aquatic ecosystem?
When acid rain falls down and flows into the rivers and ponds it affects the aquatic ecosystem. As it alters the chemical composition of the water, to a form which is actually harmful to the aquatic ecosystem to survive and causes water pollution. Acid rain also causes the corrosion of water pipes.
How does rain get higher in the atmosphere?
In order to get rainfall it is necessary that water vapor gets higher in the atmosphere. The uplift meant of water vapor can be achieved by different mechanism like by mountains or by the Cold fronts pushing the warm front above in mid latitude area or the intensive warming of earth surface causes the upliftment in low latitude area.