Weather refers to the specific state of the atmosphere near the surface of a certain area in a short time, and the phenomenon of light precipitation can be divided into 11 types. Here are how many kinds of weather are compiled by Xiaobian for everyone, and you can share them if you like!
How many kinds of weather are there?
I. Precipitation phenomena (11 kinds)
Liquid precipitation; Rain, shower, Mao Mao rain; Solid precipitation; Snow, snow showers, graupel, rice snow, ice particles, hail; Mixed precipitation; Sleet, intermittent sleet
Second, the ground condensation phenomenon (4 kinds)
Dew, frost, rime and rain
Third, visual range obstacles (9 kinds)
Fog, light fog, snow blowing, snowstorm, smoke screen, haze, sandstorm, sand blowing and floating dust
Four, lightning phenomenon (3 kinds)
Thunderstorm, lightning, aurora
V. Other phenomena (7 kinds)
Strong winds, squalls, tornadoes, dust storms, ice needles, snow and ice.
How is the weather predicted?
The first step is to collect data
The first step is to collect Ji Guang, air pressure, temperature and other data on the ground or sea surface through the equipment of some professionals. The World Meteorological Organization will further coordinate these data and finally successfully formulate a standard.
Data from meteorological satellites are more important. It can successfully collect data from all over the world and help meteorologists learn more about it. By observing and detecting clouds, we can know cloud top temperature and make predictions. Of course, ground data is more important. Specialized weather radar can obtain rainfall information, such as area and intensity.
The second step is data assimilation
Data assimilation is to combine the collected relevant data with the basic digital model, make some meteorological analysis, and get the basic answer. The final result is the optimal solution, which can not only know the temperature and humidity, but also know the pressure, wind speed and wind direction at a glance.
Step 3 Data Weather Forecast
Then the atmosphere is simulated by computer, mainly based on the data assimilation results. However, because the equation is relatively complex, only computers can make predictions.
Step 4: Output processing
After calculating the results, people can understand the meaning of the data through processing, in which errors should be eliminated and some basic adjustments should be made to the data results.
These tasks used to be done by meteorologists, but now they are much simpler, the weather forecast is more accurate than before, and meteorologists can finish their work more easily.
Step 5: Final display
The first four steps are behind the scenes, all preparing for step 5, and step 5 is also the most important step, which is to display the calculation results, so that everyone can know the future weather and make corresponding preparations.
Ancient weather forecasting methods
For thousands of years, sailors, fishermen, farmers and hunters have looked at clouds, wind, sky and objects to predict the weather and explore weather forecasting. Weather forecast has become a folk art. Ancient people looked at the sky and measured the wind and cloud. The former is the sky condition that can be observed by naked eyes and simple instruments. It not only observes the changes of the sun, the moon and the stars, but also records all kinds of past and current natural phenomena, and combines the summarized experience with current observations to make weather forecasts.