When did the weather forecast start?

As early as 3000 years ago in Shang Dynasty, China used Oracle Bone Inscriptions to record weather conditions such as wind, rain, drought and waterlogging. This is the meteorological record of Oracle Bone Inscriptions in Shang Dynasty in BC 12 17. The words on it are: Gui Hai Bu, Ding (true) 10th. March. Ugly, evening (night), rain. Ding Mao, Ming, Yu. E (Chen), small mining day, rain, wind. Self (fourth), Ming, Qi (Ji). Ren Shen, an ancient man in China, explained some phenomena about the causes of weather phenomena. The book "Zhuangzi" said: "A large breath is called the wind." This shows that the wind is formed by air flow. Zhu explained the cause of rain in the Southern Song Dynasty: "Steaming is rain, like rice retort, steaming is sweating." He also said that Lou didn't land. Li Shizhen's Compendium of Materia Medica said: "Those who expose themselves will wet the roadside at night."

There are detailed meteorological records in China ancient history books and local chronicles. Since the Han Dynasty, special weather such as drought, severe cold, frost, snow and hail has been recorded, especially in the capital areas of various dynasties.

China has used meteorological instruments to observe weather conditions for a long time, and was the first country to invent anemometers and rain gauges. Zhang Heng of the Eastern Han Dynasty invented the waiting seismograph in 132. It stands a 5-foot (about 16.7 meters) high pole with a rotatable copper bird on it. According to the direction in which the bronze bird rotates with the wind, we can see what the wind direction is. This is similar to the waiting for chickens recorded in foreign books in 12 century, and it is later than the bronze bird 1000 year.

There was also a wind flag in ancient China, which was tied with a Jason Chung and hung on a high pole. You can tell what wind is blowing by looking at the direction in which the flag is blowing. This is similar to the modern wind pocket.

China first used the rain gauge. There is a passage in Shu Shu Jiu Zhang that describes the situation from 65438 to 0247 AD in the Song Dynasty. The rain gauge is uniform in size, with a cylinder diameter of 14 cm and a copper rain gauge.