How to draw weather records?

Weather records can be downloaded and printed from the internet, or teachers can draw pictures with rulers and triangles themselves.

Weather forecast (measurement) or meteorological forecast (measurement) is to use modern science and technology to predict the state of the earth's atmosphere in a certain place in the future. Since prehistoric times, human beings have begun to predict the weather and arrange their work and life accordingly (such as agricultural production and military operations). ).

Today's weather forecast mainly uses collecting a large number of data (temperature, humidity, wind direction and speed, air pressure, etc.). ), and then use the current 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.

Weather forecast of ancient people in China.

According to the theory of "destiny", sunrise, sunset and ebb and flow of tides are all natural periodic changes. People can make more accurate predictions about these periodic changes. However, people often can't see the regular sunrise, sunset and ebb and flow. At this time, people expect to know those irregular phenomena in advance.