How can satellite clouds help people resist typhoons and floods?

Since the landlord doesn't want what Baidu found, I guess you are not an ordinary middle school student, right? Or people who do similar research in universities or other places? Anyway, I guess you already know the obvious knowledge, right? Then I suggest you don't always come to Baidu to ask questions. You should make more use of periodical network or China Knowledge Network to see how others study this problem. After all, the articles published there still have some depth. The following is an article I found related to your question, you can refer to it.

Application of satellite cloud image in flood control

The characteristics of satellite cloud images are continuous, real-time and high quality.

Frequency. These quantitative information are used for weather forecast, environment and natural disasters.

Loss prediction, especially the monitoring of local floods, has played an intuitive and objective role.

The important role of opinions. Changes of cloud clusters and cloud systems on satellite cloud images

Motion is the process of atmospheric circulation and the interaction between the atmosphere and the ground.

Intuitive reflection and careful analysis of cloud system characteristics in different periods can be clear.

Understand the occurrence and development process of multi-scale weather system in the atmosphere,

So as to explore the law and mechanism.

Judging the cloud top according to the brightness and humidity of infrared satellite images.

Relative height, using model identification technology and other judgments, and junction.

According to historical data, determine the types of clouds: frontal cloud system, thunderstorm cell,

Or strong tropical storms, their precipitation intensity and storage time are different.

Not too big. In this way, the precipitation area, precipitation intensity and rainfall can be predicted.

The development or movement of this area. In flood control work, satellite images

Mainly from the following aspects for analysis and application:

Cloud system analysis of (1) station

Through satellite cloud pictures, we can judge the occurrence and development of wind.

Trend, landing position and its weakening into tropical depression after landing

The whole process. People can find the station earlier through meteorological cloud pictures.

Wind trend, and can accurately determine its position and intensity, thus

Predict its development and changes such as direction and speed. Therefore, satellite images

It is very effective to monitor typhoons and predict their moving paths.

Tools, especially typhoon positioning, cannot be separated from satellite cloud images.

Satellite cloud images can also be used for monitoring and recording every year.

All generated typhoons and their trajectories can be determined.

Typhoon database, analysis and comparison, study its evolution law.

Method, record its rainfall and disaster.

(2) Analysis of rainstorm cloud system

According to relevant data, on the infrared cloud image, rainstorm clouds appear in clusters.

When it reaches maturity, when cloud top temperature is at -60~-70℃, it will

There is a heavy rain; When the cloud top temperature is at -70~-78℃, it will come out.

Heavy rain; When the temperature in cloud top temperature is below -78℃, there will be storms.

Rain to rainstorm. Rainstorm is very important in flood control.

Rainstorm is the main cause of flood, and short-duration high-intensity rainstorm is easy to form flood process. Through the analysis of cloud images before several rainfalls, it is found that there are large-scale rain clouds in the upper reaches of Xinlicheng Reservoir, Yitong River Basin and its surrounding areas in Yitong County, Siping area, and they contain a lot of water vapor. After analysis, it is found that cloud top temperature is generally between-60℃ and-70℃. When the water vapor content is 30~50 mm, there is a possibility of heavy rain to heavy rain in the basin. Compared with the actual situation, the rainfall in the place with the largest rainfall reaches more than 90 mm, generally exceeding 10 mm or dozens of mm. Such as July 23, 2008

There was a rain that day, and the rainfall at Yidan Station was 92.2 mm, 15.

Within 2 hours from 17, the rainfall reached 9 1. 1 mm; Leshan railway station

The rainfall is 74.0mm, twice from 14: 30 to 16.

Within half an hour, the rainfall reached 72.9 mm,

A rainfall on June 5438+05, the rainfall measured by relevant stations is roughly as follows.

About 50 mm, the maximum rainfall is 79.8 mm; ; July 2008

There was a rainfall on March 3rd1day, and the rainfall measured by the relevant stations was average.

The maximum rainfall is 45 mm and the minimum rainfall is 64.2 mm.

The rainfall is 32.0mm.

(3) Analysis of local clouds

Using the cloud image receiving system, we can not only monitor the large-scale decline.

The movement track of rain clouds can also monitor the local rainfall.

Clouds and the rainfall they form. For typhoon clouds, cyclone clouds or

Large-scale rainfall cloud system is generally paid more attention to, but for the local

Rain clouds generated in a short time often pay attention to the possibility.

Small, even ignored. However, locally generated rain clouds usually

Bring unexpected disasters, such as local heavy rain or hail.

The cloud image of August 23, 2008 17: 30 shows that only

There is a cloud over Changchun area. Adjacent to Changchun

Siping area in the south, Jilin area in the east and Songyuan area in the west.

Wan Li is clear and Wan Li is cloudless. August 23, 2008

The cloud image of 18: 00 shows that Siping, at the junction of Liaoning and Jilin,

There is a local cloud cluster in this area; In the following time (18 ~

At 20 o'clock), the cloud is constantly strengthening and expanding, and gradually moving north. At 20: 30, it met and merged with the clouds over Changchun area and strengthened again; Finally, there was rain in Yitong County in the north of Siping area.

After analyzing the cloud images of 19: 00 to 20: 00,

It is found that this cloud contains a lot of water vapor, which may form a rainstorm.

Especially the cloud image analysis at 20: 00 on August 23rd, 2008.

At present, the precipitation content contained in this cloud picture is 30~50 mm rain.

After that, through field observation, from 20: 00 to 22: 00 on August 23, 2008.

The rainfall of Yitong Hydrological Station is 38.8 mm, and the Yitong River basin is flat.

The average rainfall is 9.3mm.

(4) Comparative analysis

Based on the analysis of several major rain clouds in 2008

Now: ① The cloud center corresponds to the center of the rain area. Rainstorm cloud range and

Generally speaking, the precipitation areas are relatively corresponding, and the cloud center is in harmony with precipitation.

There is also a good correspondence between rain centers. When cloud top temperature is below

At 60℃, there is usually heavy rain in the basin; When cloud top temperature

There will be heavy rain at MINUS 70 degrees. ② Heavy rain and clouds

The direction of movement is roughly the same. ③ The intensity of clouds is related to the rainfall intensity.

Consistent. Rainfall intensity obtained from rain cloud cluster analysis and field after rain

The measured rainfall intensity is basically the same, and cloud cluster is very important for judging short-term rainfall.

The increase or decrease of intensity is an excellent indicator when the top of the cloud is

When the temperature rises, the range of cloud clusters decreases and the intensity of cloud clusters decreases.

This time often indicates a decrease in rainfall intensity, when storm clouds disappear.

If you lose, the rain will stop soon.