Global Distribution of Rainfall| Class 11 Geography Notes

Global Distribution of Rainfall denotes and calculates the distribution of rainfall in this whole world. The Global Distribution of Rainfall is uneven and specifically depends on the different climatic regions. It is uneven because there is a huge difference margin between yearly precipitation in different areas. The highest rainfall happens in the equatorial zone and the least rainfall happens in Chile. Southeast Asia is the place where monsoon happens between April and September. The average yearly precipitation of the Earth is around 100 cm.

In this article, we are going to discuss the Global Distribution of Rainfall in detail.

Global Distribution of Rainfall| Class 11 Geography Notes

Global Distribution of Rainfall – Concept

Global Distribution of Rainfall is uneven. It is dependent on the climate which may vary as per the regions.

• The projected average annual rainfall is 100 cm for the whole world.
• Arica, Chile is the place where the rainfall distribution is low. It is the world’s driest city.
• The equatorial zone and the monsoon area of Southeast Asia receive the highest rainfall in the world.

Global Distribution of Rainfall

In different seasons, the Earth receives different amounts of rainfall throughout the year. Here is the Global Distribution of Rainfall as mentioned below.

Region/Zone	Average Yearly Precipitation (cm)	Additional Notes
Equatorial Belt	> 200	Rainfall distributed evenly throughout the year
Coastal Sections of Monsoon Land	> 200	Rainfall distributed evenly throughout the year
Windward Slopes of Mountains along Western Shores of Cold Temperate Zone	> 200	Rainfall distributed evenly throughout the year
Interior Continental Areas	100 – 200	Moderate rainfall
Coastal Areas of Continents	100 – 200	Moderate rainfall
Central Parts of Tropical Land	50 – 100	Low rainfall
Eastern and Interior Parts of Temperate Lands	50 – 100	Low rainfall
Rain Shadow Zone of Interior of Continents and High Latitudes	< 50	Very low rainfall

Intesting Facts

• The amount of rainfall reduces from the equator towards the poles.
• Coastal regions of continents get more rain compared to areas further inside.
• Oceans get more rain than land because there is more water.
• Rainfall first happens on the western edges of continents. It happens because the winds blow from the west between 45 and 65 degrees north and south of the equator. Then, it reduces its strngth towards the east.

Significance of Rainfall

Here are the significance of Rainfall as mentioned below.

• Rainfall is really important for plants and animals to stay alive and sustain their life.
• It brings fresh water to Earth by following the water cycle. Most of the world’s freshwater comes from rain.
• Due to a lack sufficient of rainfall, we can have water shortages and disasters like droughts.
• It helps create different habitats and gives water for farming and making electricity.
• Rain also cools down the air because of the moisture present in it.

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FAQs on Class 11 Global Distribution of Rainfall

What is world distribution of rainfall Class 11?

The regions of highest rainfall are found in the equatorial zone and the monsoon area of Southeast Asia. Middle latitudes receive moderate amounts of precipitation, but little falls in the desert regions of the subtropics and around the poles.

What are the three types of rainfall Class 11?

The three types of rainfall are: Convectional rainfall. Orographic rainfall (also known as relief rainfall) Cyclonic rainfall (also known as frontal rainfall)

What is the distribution of rainfall in India Class 11?

The western coast and northeastern India receive over about 400 cm of rainfall annually. However it is less than 60 cm in western Rajasthan and adjoining parts of Gujarat Haryana and Punjab. Mawsynram in the southern range of the Khasi hills receives the highest average rainfall in the world.

What affects rainfall distribution?

Rainfall distribution is influenced by various factors such as climatic conditions, geographical location, proximity to water bodies, and topographical features. These elements contribute to the uneven distribution of rainfall around the world.

What are the characteristics of rainfall distribution?

The characteristics of rainfall are the amount, the intensity, the duration, the frequency or return period, and the seasonal distribution.

Who is lowest rainfall in India?

The least rainfall in India is recorded in the Jaisalmer district of Rajasthan. The average rainfall in Rajasthan is about 200-40 mm and the least amount of rainfall is in the Jaisalmer district, which is around 12 cm a year.