What ideas about meteorology emerged during the Spring and Autumn Period and the Warring States Period?

During the Spring and Autumn Period, physicians and doctors in Qin began to regard weather factors as external causes of diseases. Zeng Shen explained the causes of weather phenomena such as wind, thunder, fog, rain, dew and graupel with the theory of Yin and Yang. The Spring and Autumn Annals lists abnormal weather in historical records. Sun Tzu's Art of War lists weather as one of the five important factors that affect the success or failure of military affairs. I ching? Shuo Gua Zhuan points out that "heaven, earth, fire, wind, thunder and mountain ze" represent natural objects.

During the Warring States period, we attached importance to the application of meteorological conditions in combat. Zhuang Zhou pointed out that the formation of wind comes from the influence of airflow, and sunlight and wind can make water evaporate. Huangdi Neijing? Su Wen explained in detail the relationship between climate, season and health care and treatment.