All people in China can watch the weather forecast released by CCTV every day, and what information is displayed.

People all over the country can see the weather forecast released by CCTV every day, which shows that the information is enjoyable.

The enjoyment of information is infinite, that is, the exchange, transmission and use of information can go on indefinitely and everyone can enjoy it. This kind of enjoyment is enjoyed by * * * through continuous diffusion.

From this point of view, information is the common wealth of mankind, and it is of great significance to enjoy information through diffusion for the development of society. For example, a major scientific research achievement can be transformed into realistic productivity by many people, thus promoting the development of production and social progress.

Extended data

Principle of weather forecast

The data of humidity, temperature, air pressure, wind speed and wind direction measured by ground, radar, satellite and other instruments are deduced by supercomputer, and the law of atmospheric movement is calculated by mathematical method, and the influence brought by different clouds is analyzed.

Forecasters comprehensively analyze meteorological, dynamic and thermodynamic data, and make short-term forecast (1~6 hour weather trend) and medium-term forecast (3~ 15 day weather trend). Of course, the longer it takes to predict the future weather conditions, the lower the accuracy.

At present, the accuracy of weather forecast has reached 85%, which is actually very high. Because the observation of the earth system is not complete, there are still many technical difficulties to be overcome, and our daily life will also have an impact on the climate. These uncertainties also caused 65,438+05% inaccuracy.

The atmospheric system is a complex system, involving many disciplines, and it is inevitable that the weather forecast is inaccurate. Human understanding of the atmospheric system is still in the primary stage, and weather forecasting technology is still in the process of continuous development.