"Atmospheric Heating Process and Atmospheric Movement" Atmosphere on Earth PPT Download

Description

"Atmospheric Heating Process and Atmospheric Movement" Atmosphere on Earth PPT Download

Part One: Explanation of Curriculum Standards

1. Use schematic diagrams, videos, simulation experiments and data to explain the heating process of the atmosphere. (geographical practice)

2. Draw a schematic diagram of thermodynamic circulation to explain the principle of thermodynamic circulation. (geographical practice)

3. Understand the rules of horizontal movement of the atmosphere, and be able to judge the wind direction and wind force on isobars. (comprehensive thinking)

4. Use the atmospheric heating process and thermodynamic circulation principles to explain related geographical phenomena. (comprehensive thinking)

Atmospheric heating process and atmospheric movement PPT, part 2: preview of new knowledge

1. The heating process of the atmosphere

1. Energy source: Solar radiation is the most important energy source of the earth's atmosphere.

2. Heating process

Reminder

① During the propagation process of solar radiation, a small part is absorbed or reflected by the atmosphere, and most of it reaches the earth's surface. ② The atmosphere's absorption of solar radiation is selective: ozone strongly absorbs ultraviolet rays; water vapor and carbon dioxide mainly absorb infrared rays.

3. Direct heat source: Ground long-wave radiation is the main and direct heat source of the near-surface atmosphere.

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

1. Absorption: Water vapor, carbon dioxide, etc. in the troposphere have a strong ability to absorb long-wave radiation. Most of the long-wave radiation radiated from the ground (75%~95%) is absorbed by water vapor, carbon dioxide, etc. in the troposphere.

2. Atmospheric reverse radiation: After the atmosphere absorbs long-wave radiation from the ground, it also radiates long-wave radiation outward. Most of the atmospheric radiation is emitted to the ground, and its direction is opposite to the direction of ground radiation, so it is called atmospheric reverse radiation.

3. Insulation effect: Atmospheric reverse radiation transfers heat to the ground, which compensates to a certain extent the heat lost by ground radiation and plays an insulating effect on the ground.

A small reminder that atmospheric reverse radiation is part of atmospheric radiation. It always exists during the day and night, and the radiation is stronger during the day.

3. Atmospheric thermal circulation

1. Atmospheric movement

2. Thermodynamic circulation

(1) Concept: Air circulation formed due to uneven cold and heat on the ground. Thermodynamic circulation is the simplest form of atmospheric motion.

(2) Formation process

① Ground A receives a lot of heat, the air expands and rises, and the density of the air near the ground decreases, forming a low pressure; the air at D gathers and increases in density, forming a high pressure.

② B and F receive less heat, the air shrinks and sinks, and the air density near the ground increases, forming high air pressure; the air density at C and E decreases, forming low air pressure.

③ Horizontal movement: On the same horizontal plane, air flows from high pressure areas to low pressure areas.

Tips: ① The air pressure value in the vertical direction is always greater near the ground than at high altitude. The air pressure value on the same horizontal plane is that high pressure is greater than low pressure. ② The vertical movement of the airflow is caused by the uneven cold and heat near the ground, while the horizontal movement is caused by the difference in air pressure on the same horizontal plane.

(3) Local small circulation

①Urban heat island circulation: The temperature difference between the central area and the suburbs of the city, and the thermal circulation formed between the central area and the suburbs, is called the "urban heat island circulation".

②Sea and land breeze: During the day, the land heats up quickly and the ocean heats up slowly; at night, the land cools down quickly and the ocean cools down slowly. The atmospheric thermal circulation caused by the difference in day and night temperatures between sea and land is called sea and land breeze.

Atmospheric heating process and atmospheric movement PPT, the third part: independent detection

1. Judgment of right and wrong

(1) Solar radiation is the fundamental source of atmospheric energy. ()

(2) The air pressure difference in the vertical direction changes with atmospheric movement. ()

(3) The direction of atmospheric movement is always from high pressure to low pressure. ()

(4) The geostrophic deflection force affects both wind speed and wind direction. ()

(5) Afforestation can effectively reduce wind speed. ()

Answer(1)√　(2)×　(3)×　(4)×　(5)√

2. "The autumn clouds linger and the frost flies late, leaving the withered lotuses to listen to the sound of rain", mainly because at this time ()

A.①Strong B.②Weak C.③Weak D.④Strong

The analysis of "Autumn Yin" and "Rain Sound" shows that it is rainy weather at this time, with heavy cloud cover, strong atmospheric reverse radiation, and high ground temperature, so frost comes later.

AnswerD

Read the schematic diagram of the air pressure and various forces forming a certain hemisphere near the ground, and complete questions 3 to 4.

3. Which of the following statements is correct ()

A. The pressure field shown in the picture is located in the northern hemisphere

B. F2 in the figure is the ground friction that increases the wind force.

C. The value of the medium pressure line in the figure is L1>L2

D. F3 in the figure is the geostrophic deflection force that deflects the wind direction to the left.

4. The driving force behind the horizontal movement of the atmosphere in the figure is ()

A.F1 B.F2

C.F3 D.The combined force of F2 and F3

Analysis: Near the ground, atmospheric movement is affected by the horizontal pressure gradient force, geostrophic deflection force and friction force, and the wind direction is oblique to the isobars. It can be seen from the figure that Fl is the horizontal pressure gradient force, which is perpendicular to the isobars and always points from high pressure to low pressure, so the isobars value L2>L1; F2 is the friction force that weakens the wind, and its direction is opposite to the wind direction; F3 It is the geostrophic deflection force that deflects the wind direction to the left, so this place should be located in the southern hemisphere. The horizontal pressure gradient force is the driving force that causes the atmosphere to move horizontally, which is Fl in the figure.

Answer 3.D　4.A

Atmospheric heating process and atmospheric movement PPT, part 4 content: classroom exploration

What effects does the atmosphere have on solar radiation and the ground?

Question exploration

2018 can be said to be a big year for space, from the debut of SpaceX's giant Falcon Heavy rocket, selfies of the Red Planet to the launch of three new NASA missions... But the space field in 2019 seems to be focused on one celestial body: the moon. my country may launch the "Chang'e-5" mission at the end of 2019. The follow-up work of "Chang'e 4" will collect lunar surface samples and bring them back to Earth, marking another milestone in space exploration.

However, the "lunar immigration" that is hotly discussed among the people is still difficult. This is because the temperature difference between day and night on the moon's surface is very large. The temperature in places where sunlight shines vertically during the day is as high as 127 ℃, while the temperature at night can drop to -183 ℃.

Explore with materials:

(1) Please mark solar radiation, absorption (atmosphere to sun), reflection (atmosphere to sun), ground radiation, and atmospheric reverse radiation at appropriate locations in the figure below.

(2) Why do the temperatures on the moon change so drastically?

(3) The earth, moon and sun are at the same distance, so why is the temperature on the earth relatively stable?

(4) Use the principle of atmospheric heating process to analyze the reasons for the large temperature difference between day and night in the Tarim Basin.

Lectures by famous teachers

1. The heating process and insulation effect of the atmosphere

The atmosphere realizes the heating process by absorbing short-wave radiation from the sun and long-wave radiation from the ground, and the insulation effect of the atmosphere on the ground is a continuation of the heating process of the atmosphere. The specific diagram is as follows:

2. Application of atmospheric heating process in daily life

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

(2) Application in agriculture: using greenhouses to produce off-season vegetables; using smoke to prevent frost; spreading sand or pebbles in orchards can not only reduce the evaporation of soil water, but also increase the temperature difference between day and night, which is beneficial to the accumulation of sugar in fruits and melons wait.

(3) Use the principle of atmospheric weakening to analyze the amount of solar energy in a certain area. For example, in high-altitude areas, the air is thin, the weakening effect of the atmosphere is weak, and solar energy is abundant; in inland areas, there are more sunny days and less rainy weather, and the weakening effect of the atmosphere is weak. , solar energy is abundant.

Tips

Analysis skills of temperature difference between day and night

To analyze the size of the temperature difference between day and night, we must combine the principles of the atmospheric heating process, mainly from the aspects of terrain height, weather conditions, and underlying surfaces.

(1) Terrain height: high terrain → thin air → weak weakening effect of the atmosphere during the day and weak insulation effect of the atmosphere at night → large temperature difference between day and night.

(2) Weather conditions: Under clear weather conditions, the weakening effect of the atmosphere during the day and the insulation effect of the atmosphere at night are weak → the temperature difference between day and night is large.

(3) Underlying surface: The specific heat capacity of the underlying surface is large → the heating and cooling rates of the ground are slow → the temperature difference between day and night is small. For example, the temperature difference between day and night in the ocean is smaller than that on land.

Atmospheric heating process and atmospheric movement PPT, Part 5: Inspection in class

1. The sequence of heat transfer processes that increase the temperature of the atmosphere near the ground is ()

A.①→②→③ B.①→④→②

C.②→③→④ D.③→④→②

2. The atmospheric temperature near the ground decreases with increasing height, and its influencing factors are arrows ()

A.① B.② C.③ D.④

Analyzing question 1, the process of atmospheric warming near the ground is that most of the ① solar radiation passes through the atmosphere and reaches the ground. After the ground is heated, it transfers heat to the atmosphere in the form of ② ground radiation. The atmosphere absorbs the ground radiation and then heats up. Question 2: The direct and main heat source of the atmosphere near the ground is ② ground radiation.

Answer 1.B　2.B

3. Among the four points, the one with the highest air pressure is ()

A. Point A B. Point B C. Point C D. Point D

4. Which statement about the atmospheric movement and weather at each point in the picture is correct ()

A. Point A is downdraft

B. The upper atmosphere flows from point D to point B

C. The atmosphere near the ground flows from point A to point C.

Point D.C is under high pressure control and has sunny weather

Keywords: PPT courseware for high school geography compulsory course 1 from the People's Education Press is free to download, atmospheric heating process and atmospheric movement PPT download, atmosphere on the earth PPT download, .PPT format;

For more information about the "Earth's Atmosphere Atmospheric Heating Process and Atmospheric Movement" PPT courseware, please click the Earth's Atmosphere ppt Atmospheric Heating Process and Atmospheric Movement ppt tag.

"Atmospheric Heating Process and Atmospheric Movement" Atmosphere on Earth PPT courseware:

"Atmospheric Heating Process and Atmospheric Movement" Atmosphere on Earth PPT Courseware Part One Content: Learning Objectives: 1. Be able to use diagrams to analyze and explain the basic principles of the atmospheric heating process and atmospheric insulation. (Key points and difficulties) 2. Understand the formation process of thermodynamic circulation and...

"Atmospheric Heating Process and Atmospheric Movement" Atmosphere on Earth PPT:

"Atmospheric Heating Process and Atmospheric Movement" Atmosphere on Earth PPT Part One Content: Teaching Objectives 1. Understand the formation principles of thermodynamic circulation and learn to explain related geographical phenomena. 2. Understand the influencing factors of the horizontal movement of the atmosphere and the wind, and be able to judge on the isobars diagram..

"Composition and Vertical Stratification of the Atmosphere" PPT download of the atmosphere on Earth:

"The Composition and Vertical Stratification of the Atmosphere" The Earth's Atmosphere PPT Download Part One: Explanation of the Course Standards 1. Combined with chart materials, explain the main composition and functions of the atmosphere. 2. Use the schematic diagram of the vertical stratification of the atmosphere to analyze the stratification and characteristics of the atmosphere in the vertical direction. ..

File Info

Update Time: 2024-09-09

This template belongs to Geography courseware People's Education Press High School Geography Compulsory Course 1 industry PPT template

Preview