Traditional Culture Encyclopedia - Weather forecast - Will the rain and snow weather forecast be good next year?
Will the rain and snow weather forecast be good next year?
Weather forecast, also known as meteorological forecast (measurement), refers to the use of modern science and technology to predict the state of the earth's atmosphere in a certain place in the future. Prehistoric humans have already begun to predict the weather to arrange their work and life accordingly (such as agricultural production, military operations, etc.). ).
Today's weather forecast is mainly based on the collection of a large number of data (temperature, humidity, wind direction and speed, air pressure, etc.). ), and then use the understanding of atmospheric processes (meteorology) to determine future air changes. Because of the chaos of the atmospheric process and the fact that science has not fully understood the atmospheric process today, there will always be some errors in the weather forecast.
The satellite cloud image of China Central Meteorological Observatory was taken from Fengyun-1 and other meteorological satellites. Using satellite cloud images for analysis can improve the accuracy of weather forecast.
Weather common sense
When listening to the weather forecast, we often hear time terms such as "today's day" and "tonight", and meteorological terms such as "cloudy", "cloudy" and "sunny". "Today's day" means 12 hour, from 8 am to 20 pm. "Tonight" means 12 hours from 20:00 to 8:00 the next morning, and "sunny" means that the cloud cover accounts for10–30%; "Cloudy" means that the amount of clouds accounts for 40-70%; "Yin" means that the cloud cover accounts for 80- 100%.
Meteorological units have two standards for precipitation: 12 hours and 24 hours. The standard of 12 hour precipitation level is: "light rain" refers to precipitation of 0.6–5 mm; The "moderate rain" precipitation is 5.1–15 mm; "Rainstorm"15.1–30 mm; "Rainstorm" is 30.1–70 mm; The rainstorm is 70.1–200mm.
The standard of 24-hour precipitation level is: "light rain" precipitation means1–10 mm; The precipitation of "moderate rain" means10.1-25mm; "Rainstorm" precipitation means 25.1–50 mm; "Rainstorm" means 50.1–100 mm; "Rainstorm" is 100. 1-250 mm of precipitation.
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