What disasters are easily caused by unstable summer monsoon activities?

The instability of monsoon activities easily leads to various natural disasters, including floods, droughts, storms, hail, low temperature and freezing damage, which are described as follows:

1. Flood: Unstable summer monsoon activities easily lead to uneven rainfall distribution, and some areas may suffer floods due to the long rainy season. For example, in southern China, continuous heavy rainfall often occurs in rainy season, leading to flooding. In addition, extreme weather such as typhoons may also cause floods.

2. Drought: When the summer monsoon activity is weakened or blocked, the rain belt stays too long, which may lead to a long time without rain in some areas, thus causing drought. For example, North China often suffers from drought in summer, resulting in reduced crop production and difficulties in drinking water for people and livestock.

3. Wind disaster: When summer monsoon activity increases, tropical cyclones and other weather systems may become more active, thus causing disasters such as strong winds and storm surges. These disasters have a particularly serious impact on coastal areas and islands, which may lead to the collapse of houses, damage to ships and damage to crops.

4. Hail disaster: The instability of summer monsoon activities may also lead to the intersection of cold air and warm and humid air, resulting in thunderstorms and hail weather. These weather may lead to crop damage, house damage, traffic disruption, etc.

5. Low temperature freezing injury: In some high altitude areas or cold climate areas, summer monsoon activities may lead to a sudden drop in temperature, resulting in low temperature freezing injury. For example, some parts of the Qinghai-Tibet Plateau in China may still be covered with snow and ice in summer, affecting animal husbandry and transportation.

Related knowledge of summer monsoon

1. Summer monsoon refers to the strong wind prevailing in summer in monsoon area, which is usually caused by factors such as pressure difference, temperature change and atmospheric circulation. The summer monsoon has an important influence not only on the climate in China, but also on the weather and climate in the surrounding areas.

2. The influence of summer monsoon is very extensive. In China, the summer monsoon mainly affects the Yangtze River basin, the Yellow River basin and the Pearl River basin. In these areas, the intensity and direction of summer monsoon will have an impact on rainfall and rainfall time. For example, in the rainy season, if the summer monsoon is too strong, it will lead to continuous heavy rainfall, which will lead to floods.

3. The activity of summer monsoon is also closely related to global climate change. With the increase of global temperature, the intensity and activity law of summer monsoon are also changing. Some studies show that global warming may lead to the weakening or delay of summer monsoon, which may lead to disasters such as drought and flood.