Why the amount of rainfall peaks during an equinox in the equatorial regions?
Answer: this is known as convectional rainfall. It is more likely to happen when the sun is overhead, and at the equinox the sun is directly over the equator, so there is more rain at these times.
Why does the equatorial region have the most rainfall?
When air currents from surrounding high-pressure regions blow toward the ITCZ they bring huge amounts of humidity into ITCZ and this wet air rises in ITCZ and forms Cumulonimbus clouds. Cumulonimbus clouds produce huge amount of rainfall in these regions.
What type of rainfall occurs in equatorial regions and why?
Convectional rainfall occurs in equatorial region. Because, The convectional rainfall is occured due to the emission of significant amount of solar heat energy which causes high amount of land water vaporization.
What causes double maxima in equatorial region?
The warm to hot temperatures lead to high moisture content in the atmosphere which results into high precipitation with two peaks of rainfall or bimodal rainfall.
Why do deserts receive less rainfall?
Some deserts are near the equator where the air is very dry. Some deserts are in the middle of a continent. By the time the wind gets there, it has little moisture. If rain falls it stays dry in deserts because the sand absorbs the water.
Why is humidity high in equatorial region?
The sun-rays fall directly and there is more rainfall in the equatorial region. This is the reason behind which are high temperatures and humidity in this region.
Why is equatorial region hot and wet throughout the year?
Equatorial region consists of the area around the equator which is at 0 degree latitude. Option (A ) hot and wet climate throughout the year is correct as these places, due to being close to the equator, have ample sunshine throughout and grow tropical rainforest.
Why is water warmer near equatorial region and cooler near polar regions?
Due to the spherical shape of the Earth, sunlight falls on different parts at different angles. Direct and focussed sun rays falls on the equator and hence, the regions here are hotter and warmer. The polar regions receive diffused sun rays, which is why the areas there are colder.
Why does the equatorial region receive Convectional rainfall throughout the year?
Air near the equatorial region is heated more due to high-intensity solar radiation. It expands, becomes lighter and moves in the upward direction in the form of convectional currents. The rising air cools down. Clouds are formed and every day in the evening, the equatorial regions get a convectional type of rainfall.
What is Convectional rainfall why is it caused in the torrid zone?
Convectional rainfall occurs when the energy of the sun heats the surface of the Earth, causing water to evaporate to form water vapour. When the land heats up, it warms the air above it. This causes the air to expand and rise. As the air rises, it cools and condenses.
How much rainfall do equatorial regions usually experience in a year?
These regions usually experience 2000 mm of rainfall or more in a year. Rainfall is high for most of the year. Many equatorial regions are affected by the ITCZ. As the ITCZ passes over these areas it brings heavy rainfall and thunderstorms.
Why do equinoxes have double rainfall peaks?
The double rainfall peaks coinciding with the equinoxes are a characteristic feature of equatorial climates. However, this pattern may be upset by local conditions. Going from equator to north or south leads to a monsoonal pattern with the heaviest rainfall coming in summer months in the north and winter months in south.
How does the Intertropical Convergence Zone affect rainfall?
Rainfall is high for most of the year. Many equatorial regions are affected by the ITCZ. As the ITCZ passes over these areas it brings heavy rainfall and thunderstorms. In some areas, the ITCZ causes two periods of very heavy rainfall every year.
What is the climate like at the equinoxes?
Cooling during the nights brings out much fog and dew. The climate of this region is typically hot, damp and steamy. The double rainfall peaks coinciding with the equinoxes are a characteristic feature of equatorial climates. However, this pattern may be upset by local conditions.