Why does southwest wind blow in summer and northeast wind blow in winter in India?

Southeast Asia has the most remarkable monsoon climate in the world, because it is backed by the largest continent in Asia and Europe, as well as the largest ocean and Pacific Ocean.

In the Southeast Asian monsoon region, the birthplace of winter monsoon is located in Siberia and Mongolia, and the birthplace of summer monsoon is the Pacific Ocean and the Indian Ocean.

As shown in the following figure: India is located in the northern Indian Ocean and southwest of Siberia, so the northeast monsoon prevails in winter and the southwest monsoon prevails in summer. China is located on the west coast of the Pacific Ocean, so the northwest monsoon prevails in winter and the southeast monsoon prevails in summer.

The causes of Asian monsoon

In Asia, the sea surface temperature in the Pacific Ocean is low in summer, the airflow sinks, and the air pressure near the ground is high, while the temperature in the Asian continent is high, the airflow rises, and the air pressure near the ground is low, so the wind blows from the ocean to the land, forming the southeast monsoon in winter. The sea surface temperature of the Pacific Ocean is higher than that of the land, so the sea surface pressure is lower than that of the land, and the wind blows from the land to the ocean, forming a northwest monsoon.

Monsoon climate characteristics

Positive influence; The same period of rain and heat in summer is beneficial to crop growth. The precipitation brought by the summer monsoon is beneficial to alleviate the drought. Negative effects; The summer monsoon brings a lot of local precipitation, which may lead to floods. Summer monsoon comes late, leaving early will cause drought. Winter winds bring cold waves, sandstorms and cool weather. Disaster weather such as snow.

Distribution of Asian monsoon region

The monsoon regions in Asia are mainly distributed in East Asia, Southeast Asia and South Asia, specifically the eastern monsoon regions of China, Japan and South Korea, Indo-China Peninsula and Indian Peninsula, generally in the southeast of the whole Eurasia, while the winter monsoon comes from the north, and the summer monsoon is mainly southeast wind or southwest wind, which is obviously consistent with the summer monsoon.