What are the characteristics of the monsoon climate along the southeast coast of China?

Wind is an important form of atmospheric activity, and its wind direction changes almost inversely with the transition from winter to summer. Zheng He, a famous navigator in the Ming Dynasty of China, used the monsoon to go to the Western Ocean seven times.

There are many regions of the world that have a monsoon climate, but to the eastern part of Asia.

and southern China, Japan, Korea, Indochina.

and the Indian Peninsula are the most significant.

Tibetan. The monsoon climate of the canyon is characterized by a change in the direction of the wind. Winter winds blow from the continent to the ocean, and the weather is cold and dry; The summer winds blow from the sea to the land, and the weather is hot and humid.

The direction of the winter and summer winds is almost opposite, which is the most important feature. China is located on the Eurasian continent.

The southeast, facing the Pacific Ocean, makes our country a country with a typical monsoon climate.

Since the summer monsoon comes from the ocean, it is hot and humid.

The closer to the ocean, the stronger the hot and humid air mass is, and the more precipitation there is. Inland areas far from the ocean are characterized by sparse rainfall, and the start of precipitation gradually pushes inland from the coast and ends at the opposite time, which is the second characteristic.

Since the tall mountains can block the movement of some clouds, there is a greater possibility of precipitation, especially on windward slopes, which is the third characteristic: the rainfall is more distributed in mountains than in plains, and there are more windward slopes in mountains than leeward slopes.

The fourth characteristic is that the rainfall is concentrated in the summer, which accounts for more than half of the year. Because the summer monsoon comes from the ocean, there is a lot of rainfall; The winter winds come from the mainland, so there is less rainfall.

The reason why China, East Asia and South Asia are the most typical monsoon climate zones in the world is that in addition to the similar conditions with other monsoon regions, there is also one of the most important factors, which is the "roof of the world."

The role of the Tibetan Plateau.

Because the summer monsoon brings abundant rain, it can meet the conditions of "rain and heat at the same time" for crop growth, which is conducive to the growth of high-yield food crops such as rice, so South Asia and Southeast Asia.

Countries such as China, North Korea and Japan are among the world's rice producing regions. Of course, the change of the summer monsoon and the winter monsoon is not regular, positional, and of equal intensity, and there will be large changes in different years, which may lead to floods and droughts.

The southeast monsoon is the main monsoon system that affects the southeast of China, Japan, the Korean Peninsula and the Russian Far East monsoon region in summer.

1. The southeast monsoon is mainly due to the difference in the thermal properties of land and sea, that is, the land absorbs heat and dissipates heat faster than the ocean, and the ocean temperature in winter is higher than that of the land, and the temperature of the continent is higher than that of the ocean in summer. This leads to seasonal changes in the center of pressure over the sea and land in summer and winter, causing the prevailing wind direction to change regularly with the seasons throughout the year.

2. The southeast monsoon is generated in the subtropical high and its northwest edge, which also has the characteristics of high temperature and high humidity. Under its influence, precipitation is concentrated in the eastern part of China, the Korean Peninsula, Japan and the Russian Far East, and the weather is hot, forming the influence process of the summer monsoon.

3. Since the southeast monsoon comes from the subtropical high circulation, it is affected by the subtropical high. Therefore, when the rainy season ends and it firmly controls an area, the area tends to experience hot and muggy weather, consistent with the influence of the subtropical high, which is different from the southwest monsoon.

4. The southeast monsoon and the southwest monsoon also have the same process of advance and retreat, but it advances and retreats with the movement of the subtropical high, the southeast monsoon affects South China in May, and the monsoon affects the northward in early to mid-June, and the Jiangnan area and the Ryukyu Islands enter the rainy season, and from late June to early July, it advances to the Yangtze River basin through southern Korea to south-central Japan, which will bring continuous precipitation to this area, commonly known as plum rain; In the first to mid-July, the southeast monsoon moved further northward, and the monsoon region of northern China and most of the Korean Peninsula, northern Japan and the Russian Far East monsoon region entered the rainy season one after another, and the monsoon began to retreat southward in August, and basically withdrew from the East Asian continent with the withdrawal of the subtropical high from the mainland in October, and the advance and retreat process of the monsoon was basically the same as that of the summer rain belt in eastern East Asia.

5. China's precipitation is mainly brought by the southeast monsoon, the southeast monsoon brings ocean moisture to China, and the southeast coastal areas of China will be the first to get the water vapor brought by the southeast monsoon, forming rich precipitation, and it has become the most abundant annual precipitation area in China.

What can represent the summer monsoon in the southeast coastal area of China is the water vapor transport link. 。The summer monsoon is the wind that blows from the ocean to the land, carrying a lot of water vapor.

The southeast coastal areas of China will be the first to get the water vapor brought by the southeast monsoon, forming abundant precipitation, which will become the most abundant annual precipitation area in China.

In winter, ocean temperatures are warmer than on land, and the air over the ocean rises. Himalayas.

The cold, dry air in the region then flows south. In summer, the air in the northern part of the Indian subcontinent becomes unusually hot and the air rises, prompting the warm, humid Haimopai Ocean Currents to flow northward, bringing abundant precipitation to South Asia – the monsoon season begins.

Knowledge of the summer monsoon in China.

It originates mainly from the subtropical high over the northwest Pacific Ocean.

And also from the Indian Ocean.

Target. Characteristics warm and humid, control the eastern part of the country.

The control range is smaller than that of the winter monsoon, and the control time in our country is shorter.

The disasters will lead to abnormal summer monsoon activity, which will bring drought disasters to the water accompanying the amusement; If it is a large flood disaster, it can also cause geological disasters.

The eastern coastal summer monsoon is the greatest. Typhoons should be in water temperatures of 26 degrees Celsius.

The sea temperature in the southeast coastal area of China gradually began to rise at the beginning of summer, and the temperature standard of the northwest Pacific Ocean in summer is the most likely to reach the generation standard of infiltration typhoon, and the key typhoon is generated from May to December, especially in the concentration from July to October (accounting for 70% of the number) At this time, if the atmospheric conditions are met, it is easy to form a tropical depression, and if it continues to develop, it will become a tropical storm, a strong tropical storm, a typhoon, a strong typhoon, and a super typhoon. After becoming a tropical cyclone, under the influence of the guiding airflow, the typhoon's own dynamics and the geostrophic deflection force, it will go westward or northwest (among which there is also a special path), and the southeast coast of China is located on the west coast of the northwest Pacific Ocean, so it is easy to encounter typhoons.

The provincial-level administrative unit of China bordering the three seas or oceans is Taiwan Province.

North: East China Sea: South China Sea: Southeast of the South China Sea: Pacific Ocean, the eastern part of Chinese mainland bordering the seas: Bohai Sea, Yellow Sea.

The East China Sea, the South China Sea, and the island of Taiwan.

To the east of the Pacific Ocean, except for the Bohai Sea, which belongs to the inland and overseas areas, the other three seas belong to the Pacific Ocean.

The reason for the formation of the monsoon is mainly the seasonal variation of the thermal circulation between land and sea. In summer, the heat increase of the continent is more intense than that of the ocean, and the change of air pressure with altitude is slower than that over the ocean, so at a certain altitude, a horizontal pressure gradient from the continent to the ocean is generated, and the air is directed from the continent to the ocean, and high pressure is formed on the ocean, and the continent forms a low pressure, and the air blows from the ocean to the continent, forming an air flow opposite to the direction of the upper altitude.

It constitutes the monsoon circulation in summer. In our country, it is the southeast monsoon and the southwest monsoon. The summer monsoon is particularly warm and humid.

In winter, the continent cools rapidly, and the temperature on the ocean is higher than on the land, so the continent is high pressure, and the ocean is low pressure, and the low-level air flow flows from the continent to the ocean, and the upper air flow flows from the ocean to the continent, forming a monsoon circulation in winter. In our country, it is the northwest monsoon and becomes the northeast monsoon.

The main feature of the southeast monsoon climate.

1. Obvious monsoon characteristics.

In summer (May to September), southwesterly winds prevail, bringing warm, humid air. In winter (November to March), northerly northeasterly winds prevail, bringing dry, cold continental air.

Second, the climate of high temperature and rain.

The average annual temperature is between 20-28°C, which is warm all year round. Precipitation is abundant, mainly in summer, with annual precipitation ranging from 1000-2000 mm.

3. Frequent typhoons and torrential rains.

Affected by tropical cyclones, typhoons and other storms frequently occur in summer and autumn, which can easily cause strong winds and rains.

Fourth, the diversity of climate types.

From the equator to the north, the climate types are complex and varied, with different types such as tropical rainforest climate and tropical monsoon climate.

5. Richness of biological species.

The species are very enviable, especially in the tropical rainforest.

Sixth, the agricultural quarrel and hardship industry is dominated by rice.

The main crop is rice, and tropical crops are also cultivated in some areas.

7. Complexity of vegetation types.

The vegetation transitions from tropical rainforest to savannah, and the types are complex and diverse.