What are the meteorological phenomena related to the four seasons?

Answer: 1. Little swallow. Low-flying insect catcher.

There is a folk saying that "it will rain when swallows fly low". 2. Small fish. Swim out of the water to breathe.

Fish live by breathing oxygen dissolved in the water. When the atmospheric pressure is high on a sunny day, there is a lot of dissolved oxygen in the water, so it sinks quietly to the bottom of the water; Before the rain, the air pressure is low, and the oxygen in the deep water is greatly reduced, and the fish rise to the surface to breathe.

This article mainly provides information about the climatic characteristics of the four seasons in primary science, primary school science: explain the reasons for the formation of the four seasons, which phenomena in nature are used in the text to describe the changes in the climate of the four seasons, and what are the climatic characteristics of the autumn third-grade science related content is provided by Chuzhou Meteorology, click to view details.

According to the type, it can be divided into: precipitation phenomenon; ground condensation; visual impaired phenomena; lightning phenomena; Other phenomena.

1. Precipitation phenomenon: According to the form of precipitation, it is divided into 11 kinds, namely:

liquid precipitation – rain, drizzle, showers;

Solid precipitation – snow, ice particles, rice snow, snow showers, graupel, hail;

Mixed precipitation – sleet, showers.

2. Surface condensation and freezing: including dew, frost, fog, rain and so on.

3. Visual range obstruction: including fog (fog, fog, dense fog); light mist; blowing snow; Snowstorm; Smokescreen; Haze; sandstorms (sandstorms, severe sandstorms, super-strong sandstorms); Yangsha; Dust.

4. Lightning phenomenon: thunderstorm, lightning, aurora.

5. Other phenomena: wind, squall, tornado, dust tornado, ice needle, snow, ice.

In this way, there are many common weather phenomena, and rare weather phenomena such as "solar rain", "double rainbow", and "ball lightning", no matter how unpredictable, are actually inseparable.

Weather phenomena

Various natural phenomena that occur in the atmosphere, that is, the comprehensive performance of the spatial distribution of various meteorological elements in the atmosphere (such as air temperature, air pressure, humidity, wind, clouds, fog, rain, flash, snow, frost, thunder, hail, haze, etc.) in a certain instant.

Weather processes are the process of changing weather phenomena in a certain area over time. All kinds of weather systems have certain spatial and temporal scales, and the various scale systems are intertwined and interact with each other. The combination of many weather systems constitutes a large-scale weather situation that constitutes the atmospheric circulation of the hemisphere or even the world.

Weather systems are always in the process of rebirth, development and disappearance, and have their corresponding distribution of weather phenomena at different stages of development.

Spring (summer) comes, summer (autumn) comes, (autumn) goes (winter) comes, and the weather varies.

Spring goes and summer comes. 1. Pronunciation: chūn qù xià lái 2. Explanation: It means that spring has passed and summer has arrived, describing the passage of time.

3. Source: Feng Menglong of the Ming Dynasty Volume 1 of "Yu Shi Mingyan": "Chen Dalang raised his eyebrows and complained about his mother-in-law

Godmother, you are so slow-hearted! Spring has gone to summer, and now autumn has passed. Thou hast said that it is too early today, and that it is too early tomorrow, but thou hast not known that my days are like years.

After a few more days, when his husband returned, the matter was in vain, but he did not kill me alive! Yin Si must not ask for your life if you go. ”

Features of the four seasons of spring, summer, autumn and winter:

1. Spring. Spring is the first of the four seasons, and a new cycle begins. Spring represents warmth, growth, plant germination, warm wind and sun, and the fragrance of birds and flowers.

The temperature, sunshine and rainfall in this season are at the turning point of the year, tending to rise or increase. In spring, the yin and yang qi begins to change, and all things sprout and grow with the rise of yang energy, and spring is the season for all things to grow, spring ploughing and sowing, and the so-called "plan of the year lies in spring".

2. Summer. Summer is the season when crops are in full bloom. The temperature rises, the weather is hot, the storms are frequent, and everything grows.

Summer is the most stormy season, often accompanied by high winds and heavy rain. In the summer of the Northern Hemisphere, the continental heat pressure rises to form a low pressure, the ocean constant temperature is relatively low to form a high pressure, and according to the circulation, the southeast wind blows in the summer. Summer has the longest daylight hours of the year across the Northern Hemisphere.

3. Autumn. Autumn is the harvest season, which means that everything begins to grow from luxuriant to mature. The first two solar terms of autumn are the beginning of autumn, the heat of the summer, or the hot weather, because the heat brought by the sun has not weakened, the so-called "heat in the dog days", the dog days appear between the heat and the heat, it is the highest temperature of the year and humid and sultry days.

The climate characteristics of the first two solar terms in autumn are humid and sultry, and the real coolness of autumn is generally known after the Bailu solar term, and it gradually tends to be cool and dry from Bailu. As the late autumn begins, the climate turns from hot to cool, and everything grows with the cold and gradually declines, which is the season of alternating heat and cold. The most noticeable change in autumn is when the leaves of the vegetation change from lush green to yellow, and the leaves begin to fall and the crops begin to ripen.

4. Winter. In winter, yin and yang change, all things are received and hidden, and plants are angry and closed. After entering the beginning of winter, it means that the dry climate with little rain in autumn gradually passes, and the winter climate characteristics are cloudy and cold.

The height of the sun in the hemisphere next to Beixin Meng is small, and the daylight hours are short. The so-called "hot in the three dogs", cold in the three nines", the winter solstice is "one nine days", before the winter solstice is not very cold slippery oak, after the winter solstice, the strong cold air goes south frequently, and crosses the South Ridge, the temperature plummets, and the weather is cold. Winter is really cold, and it is after the winter solstice.

The four seasons refer to the four seasons of spring, summer, autumn and winter. The climatic characteristics of each season are also different, and the following describes the climatic characteristics of each season.

Spring: In spring, the temperature rises, the air humidity increases, it is windy, the sunshine hours gradually increase, and the temperature difference between day and night is large. There is also an increase in precipitation in the spring and sun season, and there are cooling phenomena such as rain.

Summer: high temperature, hot and humid summer, frequent thunderstorms, heavy precipitation, and flooding disasters during the flood season. At the same time, the summer has long sunshine, long daylight hours, and relatively short nights.

Autumn: Autumn temperatures gradually drop, the climate is dry, and precipitation decreases. Autumn also has occasional typhoons and torrential rains. Autumn is the harvest season, especially in temperate regions, when some fruits and crops ripen.

Winter: Winter temperatures drop, precipitation decreases, and it is dry and cold. Snowfall, frost and other phenomena occur. Due to the short hours of daylight, the daylight hours are short and the nighttime hours are long.

In short, the climatic characteristics of the four seasons vary significantly, and different clothing, diet and protective measures need to be taken in the seasons that are not the same. A better understanding of the climate can help us better adapt to the environment and maintain good health.

Common natural phenomena in the four seasons include spring breeze, summer rain, autumn frost, and winter snow. These natural phenomena are the result of the Earth's revolution and rotation, specifically:

1.Spring breeze: Spring winds are produced due to the rotation and revolution of the earth. Due to the difference in heat generated by the revolution of the earth, the air pressure is unevenly distributed, and a spring breeze is formed. Spring breezes help the temperature rise, melt the snow, and revive everything.

2.Summer rains: Summer rainfall is due to the high summer temperatures, the amount of water vapor in the air increases, and when the water vapor meets the cold air, raindrops are formed. Summer rainfall helps replenish soil moisture and sustains plant growth, and is an important part of the hydrological cycle.

3.Autumn frost: Autumn frost is formed when the temperature drops and the water vapor in the air condenses into ice crystals near the ground.

It usually occurs on clear nights, when the temperature is below freezing, and the water vapor condenses directly into ice crystals. The appearance of autumn frost marks the arrival of autumn and is also a harbinger of winter.

4.Winter snow: Winter snow is formed when the temperature drops, and the water vapor in the air condenses into snowflakes near the ground.

Snowflakes usually begin to form when the temperature drops below minus 5 degrees Celsius. The arrival of winter snow marks the arrival of winter, which provides insulation to the earth and moisture to the plants in winter.

In general, the natural phenomena that are common in the four seasons are the result of the rotation and rotation of the earth, and these natural phenomena play an important role in maintaining ecological balance and recycling natural resources.

The common natural phenomena in the four seasons are "spring birth", "summer length", "autumn harvest" and "winter storage". That is, all things are born in the spring, grow in the summer, harvest (mature) in the fall, and hide in the winter (animals hibernate, plants lose their leaves).

The reason for the formation of the four seasons, have you studied geography?

In the process of the earth's revolution, due to the tilt of the earth's axis, the sunlight regularly shines directly or obliquely on a certain area, so the temperature also changes regularly, forming four seasons.

Because the earth is inclined to rotate around the sun, the direct sunlight of the sun is centered on the equator, and the Tropic of Cancer is the boundary of the Tropic of Capricorn, sweeping north and south, once a year, and the cycle is continuous, thus forming the phenomenon of the four seasons on the earth and the sequence of alternation.

From the perspective of astronomical phenomena, the seasonal change on the earth is the seasonal change in the length of day and night and the angle of the sun's altitude at noon, and this change depends on the annual change in the latitude of the direct point of the sun.

The seasons vary differently at different latitudes on Earth. In the lower latitudes near the equator, the length of day and night and the angle of solar elevation at noon do not change much throughout the year. The altitude angle of the sun is large at noon throughout the year. Therefore, it is summer all year round, and the phenomenon of seasonal change is not obvious.

In the high latitudes near the polar regions, the length of day and night varies the most, and there are polar day and polar night phenomena in the North and South Pole Circles, and the solar altitude angle at noon is very small throughout the year, so it is winter all year round.

In the mid-latitudes, the length of day and night and the solar elevation angle at noon vary greatly throughout the year, and the four seasons change significantly.

orbiting the Sun and atmospheric circulation.