What are the advantages of the four weather systems?

Monitoring the global atmosphere and collecting meteorological data quickly is a global movement around the earth. In order to fully understand the dynamic and thermal state of the atmosphere and find signs of weather changes, it is necessary to carry out global and three-dimensional atmospheric monitoring. Since the 1960s, meteorological satellites have been put into operation, and automatic weather stations have been designed and used, which greatly made up for the lack of observation data caused by the inability to set up stations in oceans, mountains and deserts, and formed a global three-dimensional meteorological monitoring network, and carried out extensive international cooperation through the United Nations World Meteorological Organization (WMO) to provide and exchange meteorological data with each other. There are many meteorological data, such as at least four ground observations in 24 hours, and encryption 1 hour if necessary. Turn on the weather radar at any time, and track and observe the weather satellites as needed. The data is more abundant, and most of them provide cloud pictures every few tens of minutes. China's Fengyun-2 meteorological satellite can provide cloud images every half hour, and it can be encrypted if necessary. Such rich meteorological data must be collected and analyzed in a short time for weather forecast. China has successively opened meteorological circuits connecting Asia and Europe from Beijing to Tokyo and from Beijing to offenbach. Beijing Meteorological Center has become the sub-regional meteorological center and communication hub of the World Meteorological Organization, which can collect a large number of foreign meteorological data. Due to the application of computer wide area network technology, the information transmitted every day is 20 times higher than the original transmission. The transmission time is also advanced by 1.2 hours, which provides good conditions for making weather forecast. Comprehensive application, analysis and forecast of various methods and tools for weather. Meteorological technicians should analyze the past and present situation of atmospheric movement on the basis of mastering a large number of meteorological data, and then make forecasts. At present, the main methods of making weather forecast are: synoptic method, and its main tool is weather map. This is a special blank map. In addition to the terrain, there are weather stations in various countries. Forecasters quickly fill the collected meteorological data of each station into weather symbols to form a weather map. Forecasters can intuitively understand the distribution of large-scale air pressure, temperature and weather phenomena by drawing weather maps. Numerical prediction method It's like solving an equation. According to the dynamic and thermodynamic characteristics of atmospheric movement, the mathematical model of atmospheric change (also called forecasting equation) is established, and then the data of the atmosphere at a certain moment is substituted into the equation as the initial state, and the atmospheric state at any moment in the future can be obtained through the calculation of high-speed electronic computer. This method can get objective and quantitative results. At present, due to the application of large-scale high-speed computers and the continuous improvement of numerical forecasting models, numerical forecasting is a development trend. The idea of statistical forecasting method is that "weather phenomenon" (such as rainstorm) is a probabilistic event. Therefore, we can use the principles and methods of mathematical statistics to analyze the statistical laws of "events" from a large number of historical data (samples), and then design and establish statistical prediction equations. The key of this method is that it needs a lot of historical data and applies the theory and method of meteorology to find suitable forecasting factors, and it also needs high-speed electronic computers to calculate statistical forecasting models. Strengthen scientific experiments and constantly improve the level of forecasting. With the progress of modern science and technology, weather forecasting technology is also developing, and forecasting accuracy is also improving. But sometimes it is not satisfactory, because the law of atmospheric change has not been fully understood. For example, it is a very difficult problem to predict the location, time and rainfall of rainstorm. This is because people have not fully understood the weather system and formation mechanism that caused the rainstorm. In particular, some small and medium-sized systems, with small scope and short life history, are difficult to be found in time by conventional meteorological monitoring networks, and often become "fish that slip through the net". For another example, there are many factors that affect the short-term climate change in a region. According to the research, besides the change of atmospheric circulation itself, it also includes the interaction between air and sea, as well as the influence of solar activity, volcanic eruption and earth-universe factors. This also requires people to constantly carry out experimental research to reveal and understand the mystery of atmospheric change.