Table of Contents
What does rainfall mean how does it occur?
Rain is liquid water in the form of droplets that have condensed from atmospheric water vapor and then become heavy enough to fall under gravity. The major cause of rain production is moisture moving along three-dimensional zones of temperature and moisture contrasts known as weather fronts.
What does heavy rainfall mean?
Heavy rainfall is more than 0.30 inches of rain per hour. Rainfall amount is described as the depth of water reaching the ground, typically in inches or millimeters (25 mm equals one inch). An inch of rain is exactly that, water that is one inch deep.
How is rainfall caused explain it with the help of a diagram?
When water on the Earth’s surface is heated by the Sun, it evaporates and turns into water vapour which rises into the air. When the air cools it condenses around some dust or other particles in the air, called condensation nuclei. These small droplets then become visible as clouds.
Why rain is the main source of water?
As the rainwater falls on the ground, the earth absorbs it. And by this, ground water level increased which helps us in a variety of ways like for irrigation process and when we have Scarcity of water.. So here you can understand why the rain water is considered the main source of water in the earth.
What is heavy rainfall called?
Definitions of downpour. a heavy rain. synonyms: cloudburst, deluge, pelter, soaker, torrent, waterspout.
How does heavy rainfall cause flooding?
Heavy rainfall – if there is heavy rainfall there is less chance of it being soaked up by the soil (infiltration ) so it runs off into the river. The faster the water reaches the river, the more likely it will flood. This will increase the flood risk, as the water will not be intercepted and flow into the river.
How is rainfall caused Brainly?
How is rainfall measured?
A rain gauge is really just a cylinder that catches rain. If an inch collects in the cylinder, it means an inch of rain has fallen. It’s that simple. Most standard rain gauges have a wide funnel leading into the cylinder and are calibrated so that one-tenth of an inch of rain measures one inch when it collects inside.
Which body of water gets most rainfall?
According to the geographical studies, we found that the oceans get most of the rainfall which is even more than the rainfall amount in the land areas. The oceans are the largest water bodies in our planet. The clouds are generated from the oceans.
What effects does heavy rainfall produce?
Heavy rainfall can lead to numerous hazards, for example: flooding, including risk to human life, damage to buildings and infrastructure, and loss of crops and livestock landslides, which can threaten human life, disrupt transport and communications, and cause damage to buildings and infrastructure.
What are the effects of heavy rain fall?
Heavy rainfall effects. If heavy storms are frequent in your area,heavy rains will wear down shingles and other elements of a roof.
What are the main causes for rainfall?
Occurs mostly in tropics where it is hot.
What mechanisms produce high precipitation?
The mechanisms that produce high precipitation in the tropics is the warm moist air cools as it rises, since cool air holds less water vapor than warm air, the water vapor carried by this rising air mass condenses and form clouds, which produce the heavy rain fall associated with tropical environments.