Why is this year s temperature change more volatile than usual?!

Answer 1: Weather is a general term for atmospheric conditions (such as cold and warm, wind and rain, dry and wet, cloudy and sunny, etc.) and their changes in a certain area in a short period of time. Weather system usually refers to the atmospheric movement system with typical characteristics, such as high pressure, low pressure and high pressure ridge and low pressure trough, which cause weather changes and distribution.

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. Therefore, the weather and weather changes in a region are related to the weather system and its development stage, and are the combined results of the dynamic and thermal processes of the atmosphere.

All kinds of weather systems are formed, developed and evolved in a certain atmospheric circulation and geographical environment, and all reflect the environmental characteristics of a certain region. For example, the polar region and its surroundings are covered with ice and snow all year round, and the air is cold and dry, which has become the background condition for the formation and development of low-altitude cold high pressure and high-altitude polar vortex and trough in the polar region. The high temperature and humidity in the equatorial and low latitudes all year round, and the unstable atmosphere are necessary conditions for the emergence and development of convective weather systems.

The middle and high latitudes are areas where cold and warm air currents often meet, and not only the cold and warm air masses alternate frequently, but also their baroclinic pressure is unstable, which is an important basis for the formation and development of frontal and cyclone systems. The formation and activity of weather systems, in turn, can have a profound impact on the structure and evolution of the geographical environment. Therefore, it is very important to understand the formation, characteristics, changes and evolution of weather and climate and the evolution of the geographical environment.

Answer two. Weather is the change in the physical condition of the atmosphere over a short period of time, and the main factors that affect the weather are air masses and fronts.

1) Air mass: It can be divided into warm air mass and cold air mass. When controlled by a single air mass, the weather is monotonous, often showing as sunny weather. When an air mass in a place is replaced by a new one, the weather changes.

2) Front: the interface between cold and warm air masses. When the cold air mass moves to the warm side, it is a cold front; Conversely, when the warm air mass moves to the cold side, it is a warm front. Frontal transit areas are often accompanied by changes in temperature, rain and snow, high winds or sandy weather.

3) Cyclones and anticyclones: cyclones are accompanied by low pressure and are characterized by rainy weather; An anticyclone is accompanied by high pressure and is characterized by fine weather. The position of a place in a cyclone or anticyclone determines the direction of the wind in that place.

It is going to be destroyed, this is a precursor.

Diurnal variation of temperature refers to the cyclical variation of high and low temperatures in a day. This change becomes more pronounced the closer to the ground, the more pronounced the annual change in temperature, which refers to the cyclical change in temperature over the course of the year. In most parts of the planet, there is a maximum and a minimum monthly average temperature during the year.

Due to the storage of heat on the ground, the time when the highest and lowest local low values occur is not in solar radiation.

The strongest and weakest days are not in the month where Qi Chen's day is located, but 1-2 months behind that day. Remember the good reviews.

on 24 Jul 2014

Weather] The temperature dropped by more than 10 degrees today! After two seasonal cooldowns.

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1. The difference in the altitude angle of the sun causes the heat absorption in different regions to change, and the temperature also changes.

2. Atmospheric conditions cause changes in heat loss, resulting in temperature changes.

3. The amount of absorption and loss of net heat, the periodic change of the previous measure causes the latter to change, and the latter is the main factor of temperature change, so the change of net heat eventually causes the change of temperature.

4. Of course, other geographical conditions will also cause temperature changes.

Changes in the weather outside cause changes in water temperature, air pressure, dissolved oxygen, etc., which will affect the activities and foraging of fish in the water, which will also affect the results of our fishing, especially in winter. It's best to check the weather forecast when fishing, because if the weather is suitable for the fish, then there will be a good catch, otherwise, we may go home empty-handed.

One of the main reasons for such a varied summer weather is water vapor, which is the basic material for all kinds of weather changes. Speaking of water vapour, we would like to introduce you to a weather system called the subtropical high. The subtropical high is a high pressure system located at an average of 35 degrees above the earth, approximately arranged along the latitudinal circle, and the location of the subtropical high has obvious seasonal changes, in the northern hemisphere, it is northerly in summer and southerly in winter.

The airflow rotates outward from the center of the high pressure in a clockwise direction, forming a southerly airflow in the western part of the high pressure, which continuously transports warm and moist air from the ocean to the mainland of China, thereby providing water vapor for rainfall.

When the warm and humid airflow meets the cold air coming down from the north, it will form a wide range of rainy weather, because the position of this high pressure changes with the season, it also makes the rainfall belt in the summer half of China advance from south to north. In autumn, the subtropical high retreats southward, and the rain belt also moves southward. This is the reason why the rainy season in the south of China starts early, ends late, and lasts for a long time, while the rainy season in the north starts late, ends early, and lasts for a short time.

Through these analyses, it can be found that on sunny days when the human body feels comfortable, fish may feel uncomfortable, and many of their habits are still different from those of people who live in the water and are ectothermic animals. Therefore, when we fish, we must consider from the perspective of the fish, so that we can catch the fish.

And on a sunny night, because there is no cloud cover, the heat on the ground will be dissipated more quickly, resulting in a large drop in water temperature, and in the morning the temperature in the upper layer of the water will be very low, and when the sun rises, the water temperature will rise rapidly, resulting in an increase in the temperature difference between day and night.

The anomalies in the climate state of various parts of China do not exist in isolation, but all occur in an important context: global warming. Over the past 50 years, there has been a wide range of changes in extreme heat and low temperatures.

Low temperatures and frosts are becoming less frequent than before, while high temperatures and heat waves are becoming more common.

This is due to the very high temperatures in the Antarctic and the Arctic, which have led to a relatively large impact on the temperature in the inland areas, which is why such a high temperature change occurs.

Because the earth's environment is particularly polluted, global warming is becoming more and more serious.

Are you a god? Why is it possible to get to the future weather in a few months?

The temperature varies from year to year during the year, and the highest value is ().

a.Before and after the summer solstice oak solar term.

b.Before and after the solar term of the Great Heat.

c.The beams before and after the Lixia solar term are burning.

d.Before and after the summer season.

Correct answer: B

The variation law of annual temperature difference is as follows.

1. The annual temperature range increases with the increase of latitude.

2. In the same latitude area, the farther away from the ocean, the greater the annual temperature difference.

3. Generally speaking, the highland is smaller than the depression or valley, and the higher the altitude, the smaller the annual temperature difference.

4. The annual temperature difference in areas with more clouds and rain is smaller than that in areas with less cloud-based rainfall.

5. The annual temperature difference in the area with vegetation is smaller than that in the area without vegetation (bare land).

The annual variation of temperature is:

Northern Hemisphere: July with maximum land temperature and January minimum temperature; The highest temperature in the ocean is August, and the lowest temperature is February.

Southern Hemisphere: January with the highest temperature on land and the lowest temperature in July; The highest temperature in the ocean is February and the lowest temperature is August.

The Tarim Basin is located in the northwest inland of China, which is a temperate continental climate, and one of its characteristics is that the diurnal and annual temperature ranges are large! The difference between the highest monthly average temperature and the lowest monthly average temperature of a year is called the annual temperature range.

The difference between the highest monthly average temperature and the lowest monthly average temperature of a year is called the annual temperature range. The annual temperature range is an important basis for dividing climate types, and the oceanic climate is warm in winter and cool in summer, and the climate is pleasant. The continental climate is characterized by severe cold winters and hot summers.

As the saying goes, "lukewarm, grains do not bear fruit". The high summer temperature is very beneficial to the growth of most crops, and in Central and East Asia, where the continental climate is very strong, rice and cotton can still grow normally in the high latitude area of about 50°N. In the United Kingdom, at the same latitude, due to the extremely strong maritime climate, cotton could not be grown at all, only wheat and potatoes.

In Siberia, where the continental climate is very strong, many coniferous forests extend deep into the Arctic Circle, while in the United Kingdom, at 59°N, tundra is already present, and coniferous forests cannot grow.

In general, the regions affected by continentalism (mainly located in the mid-latitude continental hinterland) have large annual temperature variations.

Large annual temperature range is the main feature of temperate continental climate.

Weather changes, must be due to the change of seasons, the alternation of cold and warm currents, the confrontation of cold and warm fronts, the formation of macro meteorology, and then specifically affected by different factors such as the topography and geographical location of each region, the weather of a certain place is formed.

The change of winter weather is because the cold air from the north moves south, resisted by the warm air that originally controlled the area, in this process, both will retreat and advance, but in the end it will be the cold air that completely occupies, but during the period of progress and retreat, there will be rainy and sunny weather, perhaps what you call impermanence.