Why equatorial region show double maxima of rainfall?
The classic reasons are : 1- The trade winds from the high subtropical pressures are running into in the equatorial zone and forms a rising air chimney that gives a lot of rain. 2- equatorial regions are an area facing the sun. the air is very well heated and can hold a lot of water vapor.
Why the amount of rainfall peaks during an equinox in the equatorial region?
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.
How does rainfall occur in the equatorial areas?
Convectional rainfall is prevalent in equatorial regions. In these, the warm air rises up and expands then, reaches a cooler layer and saturates, then condenses mainly in the form of cumulus or cumulonimbus clouds. In the equatorial regions, the precipitation due to convectional rainfall occurs in the afternoon.
What is double rainfall peak?
The double rainfall peaks coinciding with the equinoxes are a characteristic feature of equatorial climates not found in any other type of climate. There is much evaporation and convectional air currents are set up, followed by heavy thunderstorms in the afternoons.
What is the meaning of double maxima of rainfall?
The southern region of Nigeria experiences a double rainfall maxima characterised by two high rainfall peaks, with a short dry season and a longer dry season falling between and after each peaks.
What is double rainfall peaks?
Which climate region often experience double maximum rainfall in the year?
Modified Equatorial Climate
4.1 Modified Equatorial Climate of the Coast As the other equatorial climate in this region, this region has no dry season but has a well-developed double maximum rainfall in May and October. There is high average temperatures and humidity throughout the year.
What is the equatorial climate?
Description of the equatorial climate They are hot and wet all year round – this creates a humid climate. The annual rainfall is high as it rains almost every day. The temperatures are constant all year round – the temperature range is usually only a few degrees. There are no seasons.
Which type of rainfall generally occur in the equatorial climate?
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 is modified equatorial climate?
4.1 Modified Equatorial Climate of the Coast As the other equatorial climate in this region, this region has no dry season but has a well-developed double maximum rainfall in May and October. There is high average temperatures and humidity throughout the year.
What is the meaning of equatorial climate?
A tropical rainforest climate or equatorial climate is a tropical climate usually found within 10 to 15 degrees latitude of the equator. They experience high mean annual temperatures, small temperature ranges, and rain that falls throughout the year. A tropical rainforest climate is typically hot, very humid, and wet.
What is double maxima in geography?
d) Double maxima of rain i.e. there are two rainfall peaks received. The rainfall regime is characterized by a bimodal pattern. There is hardly any dry spell (dry season). e) The type of rainfall received is mainly convectional rainfall commonly accompanied by lightning and thunderstorms.
What is the meaning of ‘doubly rainfall peak’?
It occurs when the sun is vertically overhead at the equator on two days every year – around March 21st ( Doubly Rainfall Peak refers to the two periods of maximum rainfall in April and October, in equatorial region. These two peaks are observed shortly after the equinoxes which occur around March 21st and September 23rd every year.
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.
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.
What is the average rainfall in equatorial climate?
In other words, it can be said equatorial climate is experienced by all those areas of South America, Africa, West Malaysia and Indonesia which lie close to the equator. The rainfall is heavy and well distributed throughout the year. The average rainfall is in the neighborhood of 1500 to 2500 mm.