"The Heating Process of the Atmosphere" Atmosphere PPT Courseware on Earth

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"The Heating Process of the Atmosphere" Atmosphere PPT Courseware on Earth

Part One Content: Curriculum Standards:

Use schematic diagrams, etc. to illustrate the heating process of the atmosphere and explain related phenomena.

Literacy goals:

1. Through the schematic diagram, know the sources and transfer directions of solar radiation, ground radiation, and atmospheric reverse radiation. (District and city awareness)

2. Through multimedia pictures, understand the heating process of the atmosphere and the insulation effect of the atmosphere on the ground from a comprehensive perspective of time and space. (comprehensive thinking)

3. Understand the relationship between human activities and the atmospheric heating process from the perspectives of energy security and environmental change. (Coordinated view of man and earth)

4. Through typical cases in life, understand the heating process of the atmosphere and the principle of the atmosphere's insulation function. (geographical practice)

PPT on the heating process of the atmosphere, part 2: essential knowledge and foundation for literacy

1. The weakening effect of the atmosphere on solar radiation

1. The weakening effect of the atmosphere on solar radiation: reflection and _____, in addition to _____.

2. Regional differences in solar radiation: solar radiation at low latitudes ___, polar regions ___.

[Question] Large-scale volcanic eruptions may cause the surface temperature to drop. Why?

Tip: A large-scale volcanic eruption will emit a large amount of volcanic ash. The volcanic ash has a strong reflection and scattering effect on solar radiation, that is, it has a strong weakening effect on solar radiation, thereby weakening the short-wave solar radiation reaching the ground.

2. The thermal insulation effect of the atmosphere on the ground

1. Principle of atmospheric insulation:

(1) Atmospheric warming: Most of the heat released by ________ is absorbed by water vapor, carbon dioxide, etc. in the troposphere. The atmosphere will heat up after absorbing ________.

(2) Atmospheric heat preservation: While the atmosphere is warming, it also radiates ________ outwards. Most of the atmospheric radiation directed to the ground is called _________, which transfers heat to the ground, making up for _________ to a certain extent. The lost heat plays a role in insulating the ground.

[Discriminate]Determine whether the following statements are true or false.

① Solar radiation reaches the ground, and the ground absorbs and heats up, so the sun is the direct heat source of the ground. ( )

②The ground heats up to form ground radiation, and the atmosphere absorbs and heats up. The sun is the direct heat source of the atmosphere near the ground. ( )

③ After the atmosphere heats up, atmospheric radiation is formed, and the downward part is called atmospheric reverse radiation, which returns most of the heat to the ground. ( )

2. The common significance of the atmosphere’s weakening effect on solar radiation and its insulation effect on the ground:

It reduces the difference in temperature and provides suitable temperature conditions for the growth and development of organisms and human activities.

[Question] What is the reason for the increase in carbon dioxide concentration? What kind of environmental problems may it bring?

Tip: Humans’ massive burning of fossil fuels and deforestation have increased the concentration of carbon dioxide in the atmosphere. Increased carbon dioxide concentration absorbs a large amount of ground long-wave radiation, heating the atmosphere and easily causing global warming.

Atmospheric heating process PPT, the third part of the content: key capabilities and literacy formation

Ability: The thermal insulation effect of the atmosphere

1. The heating process and insulation effect of the atmosphere:

The heating process and insulation effect of the atmosphere can be vividly summarized as "the sun warms the earth", "the earth warms the atmosphere" and "the atmosphere returns to the earth". The specific illustrations are as follows:

2. Application of the principle of atmospheric heating process:

(1) Explain the impact of large amounts of greenhouse gas emissions on global warming.

(2) Apply to agricultural production practice to improve production efficiency.

Use greenhouses to produce off-season vegetables and use smoke to prevent frost; spreading sand or pebbles in orchards can not only prevent soil moisture from evaporating, but also increase the temperature difference between day and night, which is beneficial to the accumulation of sugar in fruits.

(3) Use the weakening effect of the atmosphere to analyze the abundance and shortage of solar energy in a certain area. For example: high altitude areas - the air is thin, the weakening effect of the atmosphere is weak, and solar energy is abundant; inland areas - there are many sunny days and few rainy days, the weakening effect of the atmosphere is weak, and solar energy is abundant.

3. Analysis of the temperature difference between day and night:

The analysis of the temperature difference between day and night must be based on the principle of atmospheric heating process, mainly from the aspects of terrain height, weather conditions, and underlying surface properties.

[Typical example demonstration]

The picture below is a "schematic diagram of the heating process of the atmosphere." Read the picture to answer questions (1) to (3).

(1) The correct serial number of ①～④ is ()

A.①——Ground radiation

B.②——Atmospheric radiation

C.③——Solar radiation

D.④——Atmospheric reverse radiation

(2) In the figure, the direct heat source of the atmosphere near the ground comes from ()

A.① B.② C.③ D.④

(3) The ancients had a method of preventing frost by "setting fire to make fire, so as to get less smoke and avoid frost". This method makes ()

A. ① weaken B. ② strengthen C. ③ weaken D. ④ strengthen

[Ideas] To solve this type of problem, you should start from the following three points:

(1) When reading pictures, you should pay attention to two "surfaces", namely the "upper interface of the atmosphere" and the "ground".

(2) Determine the four radiation directions based on two "surfaces".

(3) Determine the "radiation source" according to the radiation direction, determine the name of the radiation and the heat propagation space.

[Analysis] (1) Choose D, (2) Choose C, (3) Choose D. Question (1), from reading the picture, we can see that ① represents the solar radiation reaching the upper boundary of the atmosphere; ② represents the solar radiation reaching the ground; ③ represents the ground radiation; ④ represents the atmospheric reverse radiation. Question (2): The main and direct heat source of the atmosphere near the ground is ground radiation. Question (3): Smoke can absorb ground radiation and then return it to the ground in the form of atmospheric reverse radiation, so ④ is enhanced.

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Update Time: 2024-10-20

This template belongs to Geography courseware Hunan Education Edition High School Geography Compulsory Course I industry PPT template

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