"Application of Geographic Information Technology in Disaster Prevention and Mitigation" Natural Disasters PPT Courseware

Description

"Application of Geographic Information Technology in Disaster Prevention and Mitigation" Natural Disasters PPT Courseware

Part One: Explanation of Curriculum Standards

1. Understand the working principles of remote sensing technology, global satellite navigation systems and geographic information systems, and master their characteristics.

2. Give examples of the application of remote sensing technology, global satellite navigation systems and geographical information systems in resource census, environment and disaster monitoring. (comprehensive thinking)

PPT on the application of geographical information technology in disaster prevention and reduction, part 2: preview of new knowledge

1. Remote sensing technology

1. Concept: Remote sensing technology is a geographical information technology that uses optical or electronic equipment installed on aircraft or spacecraft to sense surface objects over long distances.

2. Features: It has a large detection range, fast information acquisition speed, short cycle, large amount of information, few ground restrictions, and can realize real-time and dynamic monitoring of ground object information.

3. Function: Monitor the formation process of disasters in real time and make accurate forecasts; quickly identify the scope of impact of natural disasters, and provide strong support for disaster statistics, disaster relief and other work.

Why can remote sensing technology that links life be widely used in disaster relief?

It is suggested that because remote sensing technology has the characteristics of large detection range, fast data acquisition, few restrictions on ground conditions, and large amount of information, the application field is very broad.

2. Global satellite navigation system

1. Concept: The global satellite navigation system uses satellites to perform real-time positioning and navigation around the world.

2. Composition: It consists of three parts: satellite constellation (space part), ground monitoring system (ground control part) and signal receiving system (user part).

3. Features: Global, all-weather, continuous and real-time.

4. Global satellite navigation systems: the United States’ Global Positioning System, Russia’s Global Satellite Navigation System, Europe’s Galileo Satellite Navigation System and my country’s Beidou Satellite Navigation System.

5.Application

(1) Provide users with precise three-dimensional coordinates, speed and time.

(2) When encountering a natural disaster or facing disaster risk, send a distress signal and report the location and disaster situation in a timely manner.

What help can the Linked Life Global Positioning System provide in our lives and production?

The prompt can provide users with precise three-dimensional coordinates, speed and time, which can help people conduct field inspections, travel and measurements.

3. Geographic Information System

1. Concept: Geographic information system is a computer information system that inputs, processes, stores, manages, queries, analyzes, and outputs geographic data.

2. Function: Use the spatial query and analysis functions of the geographic information system to conduct overlay analysis of relevant data according to different purposes.

3. Application in disaster prevention and reduction

Conduct dynamic monitoring of natural disasters, forecast and warning, determine the scope and status of disasters, and provide a basis for formulating disaster reduction plans, assessing disaster losses, and guiding post-disaster recovery and reconstruction.

How does Link Life understand the sentence "Geographic Information System (GIS) is an extension of the map"?

The tip can be understood as the map is an important information source of GIS and the basis of GIS; and GIS is the extension and improvement of the map. In addition to the basic functions of the map, it also has other more functions that the map does not have.

PPT on the application of geographical information technology in disaster prevention and reduction, part three: independent detection

1. Judgment of right and wrong

(1) Remote sensing technology can only provide information about local areas and cannot provide global information. ()

(2) The color of the ground objects on the remote sensing images is not the real color of the ground objects. ()

(3) The Beidou satellite navigation system can only provide three-dimensional coordinates of geographical objects. ()

(4) The geographic information system does not only have map query functions. ()

(5) Remote sensing technology can predict earthquakes. ()

Answer(1)×　(2)×　(3)×　(4)√　(5)×

2. The advantages of using remote sensing technology to monitor forest fires compared with manual monitoring are ()

① Obtain data quickly and can perform dynamic analysis in a timely manner ② Limited by the ground, it can avoid casualties ③ The amount of information obtained is large ④ The detection range is wide and can be monitored objectively

A.①②③ B.①③④

C.①②④ D.①②③④

AnswerD

3. Compared with traditional manual measurement methods, the following advantages that do not belong to global satellite navigation systems are ()

A. High measurement accuracy

B. Complex operation and large instrument size

C. Round-the-clock operation

D. Information is automatically received and stored, reducing cumbersome intermediate processing links.

Analyze the advantages of the global satellite navigation system in measurement: high measurement accuracy; easy operation; small instrument size, easy to carry; all-weather operation; automatic reception and storage of information, reducing cumbersome intermediate processing links.

Answer B

PPT on the application of geographical information technology in disaster prevention and reduction, part 4: classroom exploration

Remote Sensing Technology

Question exploration

According to Russian media reports on April 16, 2019, there are currently 438 Earth remote sensing satellites in orbit around the world, and China has the most large remote sensing satellites, with a total of 84. Remote sensing satellites are mainly used in scientific experiments, land and resources census, crop yield estimation and disaster prevention and reduction. In major natural disasters such as the Wenchuan Earthquake and the Zhouqu Debris Flow, remote sensing satellites have provided massive information support for ground command, disaster relief, disaster verification, recovery and reconstruction through real-time ground imaging observations.

Explore with materials:

(1) Remote sensing technology relies on aircraft, spaceships, satellites and other vehicles to analyze the impact of the operating altitude of the vehicles on remote sensing results.

(2) How to apply remote sensing technology for disaster monitoring?

Tips (1) The flight altitude of the sensor vehicle has a great influence on the range, speed, period, resolution, etc. of remote sensing detection. Generally speaking, the higher the vehicle flies, the wider the detection range, the faster the data is obtained, and the shorter the cycle, but the lower the resolution of ground objects.

(2) According to the different reflectivity of ground objects under different circumstances, remote sensing can be used to determine the occurrence of disasters.

Lectures by famous teachers

1. Working characteristics of remote sensing technology

Remote sensing has the characteristics of large detection range, fast data acquisition, few restrictions on ground conditions, and large amount of information obtained. Therefore, remote sensing has obvious advantages and is widely used.

2. Application of remote sensing technology

Application of geographic information technology in disaster prevention and reduction PPT, Part 5: On-site inspection

1. Beidou Navigation Satellite System (BDS) is a global satellite positioning and text communication system independently developed by my country. It is the third mature satellite navigation system after the United States Global Positioning System (GPS) and Russia's GLONASS (GLONASS). . The main roles played by BDS in earthquake relief are ()

① Provide images of the disaster area ② Statistics of economic losses in the disaster area ③ Determine the location of disaster relief personnel ④ Provide short text contact

A.①② B.①③ C.②③ D.③④

AnswerD

2. The geographical information technology that the image mainly relies on is ()

A.Geographic information system B.Remote sensing technology

C.Global positioning technology D.Digital Earth

3. The above geographical information technology can also be used to ()

A.Travel navigation

B.Plan urban road traffic

C. Establish urban management data model

D. Estimating grain production

Analyzing question 2, remote sensing technology is widely used in resource surveys, environmental monitoring, natural disaster prevention monitoring and other fields, and can be used to monitor forest fires. Question 3: Remote sensing technology can estimate the yield of food crops by monitoring their growth.

Answer 2.B　3.D

4. Read the materials and complete the following questions.

Material 1: After the Wenchuan earthquake, the hardest-hit areas fell into a state of information isolation. The Ministry of Land and Resources immediately activated aerial remote sensing aircraft to take high-precision remote sensing images of the earthquake-stricken area from an altitude of 6,000 meters. Experts conducted preliminary data processing and interpretation of the images, and marked the collapse of houses in the disaster area, the scale and distribution of landslides and debris flows, and the damage to dangerous landslides, roads and bridges, and other hazards. These images are transmitted to the front line of disaster relief as a reference for commanders to formulate earthquake relief plans. Later, aerial remote sensing aircraft also became the "eyes in the sky" for monitoring the threats of secondary disasters such as barrier lakes.

Material 2: The following two pictures are remote sensing images of the Wenchuan area taken by satellites on May 14, 2006 and May 14, 2008.

(1) (Double choice) Remote sensing can () when monitoring earthquake disasters

A. Analyze the causes of earthquakes

B. Monitor the dynamics of earthquake disasters

C. Provide plan basis for disaster relief

D. Control the occurrence of disasters

(2) From Material 2, we can clearly see what secondary disasters have occurred here?

(3) Combined with material analysis, the main role of remote sensing and geographic information systems in the process of disaster relief is _____;

The main role after a disaster is _____.

Keywords: PPT courseware for high school geography required by the People's Education Press is available for free download, application of geographic information technology in disaster prevention and reduction PPT download, natural disaster PPT download, .PPT format;

For more information about the "Application of Natural Disasters Geographic Information Technology in Disaster Prevention and Mitigation" PPT courseware, please click the "Natural Disasters PPT Application of Geographic Information Technology in Disaster Prevention and Mitigation" PPT tag.

"Application of Geographic Information Technology in Disaster Prevention and Mitigation" Natural Disasters PPT:

"Application of Geographic Information Technology in Disaster Prevention and Mitigation" Natural Disasters PPT Part One Content: Learning Objectives: 1. Understand the main types and characteristics of geographic information technology. 2. Master the working principles of major geographical information technologies and their applications in disaster prevention and reduction. ... ...

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