What is Monsoon?

May 22, 2015 11:19 AM |

The word Monsoon is a derivative of the Arabic word ‘Mausim’ meaning season. Traditionally, Monsoon is defined as the seasonal reversal of winds accompanied by corresponding changes in precipitation.

The primary mechanism behind Monsoons or rainy seasons is a shift in global wind patterns, causing excessive rainfall in many parts of the world including Asia, North America, South America, Australia and Africa.


Why does it rain during Monsoon?

Winds mostly blow from the land to ocean making the air dry during most of the seasons. These winds originating from land are called continental winds. During certain months of the year, the winds blow from the ocean to the land and are called maritime winds. These moisture-laden winds originating over a water body, causes monsoonal rains over many countries.

Which countries are affected by Monsoon?

The places across the world affected by Monsoon include Australia, Africa, China, Philippines, Southeast Asian countries and India.

What are Global Wind Patterns?

Coriolis Effect

To understand the wind patterns on a rotating earth we first have to know what is the Coriolis effect or the Coriolis force. It is defined as the apparent deflection of objects such as wind, aeroplanes, missiles and ocean currents, while moving in a straight path relative to the earth's surface.

Strength of the Coriolis force is proportional to the speed of the earth's rotation at different latitudes. Therefore, Coriolis force is maximum at the poles.

The Coriolis Effect is an apparent motion, which depends on the position of the observer. It explains the reason why winds are deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.



To know about Southwest Monsoon, which brings a humid climate and torrential rainfall in India and Southeast Asia, click here.

For more updates on Monsoon and Monsoon related stories, click here

Featured image - pinterest, Coriolis Effect - www.surfline.com



For accurate weather forecast and updates, download Skymet Weather (Android App | iOS App) App.

Weather Forecast

Other Latest Stories

Weather on Twitter
#Hindi: 14 और 15 नवंबर को सिरसा, हिसार, भिवानी, महेंद्रगढ़ और चरखी दादरी सहित पश्चिमी हरियाणा के कुछ जिलों में बारि… t.co/MzwEVgQiLP
Wednesday, November 13 15:45Reply
#Hindi: आज यानि 13 नवंबर के बाद हम तमिलनाडु के तटीय इलाकों में बारिश शुरू होने की उम्मीद करते हैं। जबकि, बारिश की… t.co/lHgBkicl9L
Wednesday, November 13 15:30Reply
#Pollution in #Delhi has once again plunged into #hazardous category on Tuesday. It is likely to remain the same to… t.co/DEwog8jmNf
Wednesday, November 13 15:15Reply
बारिश 22 या 23 नवंबर तक जारी रह सकती है। राज्य के पुडुचेरी, कराईकल, तंजावुर, चेन्नई जैसे स्थानों के साथ-साथ दक्षिण… t.co/MNV9nCGBvU
Wednesday, November 13 15:00Reply
#Hindi: स्काइमेट के मौसम विशेषज्ञों का अनुसार, राजस्थान में यह बारिश 15 नवंबर तक जारी रहने की संभावना है। इसके बाद… t.co/gZ3UWiy21c
Wednesday, November 13 14:43Reply
#ArcticBlast: Over a 1000 flights have been cancelled and four deaths, all traffic ones have been reported. Highway… t.co/Kdz6pJnqJb
Wednesday, November 13 13:33Reply
अगले 24 घंटों के दौरान, पश्चिमी राजस्थान में हल्की से मध्यम बारिश होने की संभावना है। #Hindi #Weatherforecast t.co/Lpv50MFSqL
Wednesday, November 13 13:06Reply
We expect scattered #rains to continue over western districts of #Rajasthan today as well. Tomorrow, the intensity… t.co/ezxbo24ky7
Wednesday, November 13 12:30Reply
During the next 24 hours, scattered light to moderate #rains are likely over West #Rajasthan. Isolated rains might… t.co/0t0I01uQ2g
Wednesday, November 13 12:13Reply
#Rains may continue until November 22 or 23. Places like #Puducherry, #Karaikal, #Thanjavur, #Chennai as well as ad… t.co/IQIK6PDwtd
Wednesday, November 13 11:45Reply

latest news

Skymet weather

Download the Skymet App

Our app is available for download so give it a try