Traditional Culture Encyclopedia - Weather inquiry - Why is the same temperature and humidity higher in places than in dry places?

Why is the same temperature and humidity higher in places than in dry places?

At the same temperature, the place with high humidity makes people feel colder than the dry place, because water needs to absorb the heat in the air during the transition from liquefaction to vaporization. When the heat in the air is absorbed, the surrounding temperature will drop, which will make us feel colder. In the same way, just like when we open the lid of a hot pot, our hands will be very hot when they are washed by steam, because water changes from vaporization to liquefaction, and heat is released in the process, which makes people feel hotter than the lid.

At the same temperature, places with high humidity make people feel colder than dry places, especially in winter. If a Harbin person goes to Nanjing, based on his winter experience in Harbin these years, he will definitely feel that the outdoor temperature in Nanjing is much lower than that in Harbin, because the humidity in Nanjing is much higher than that in Harbin, which affects the human body's feeling cold. Because of the high air humidity in Nanjing, water changes from liquid to gas, which needs to absorb energy. In this process, the surrounding temperature will decrease, and the temperature that the human body can feel will be lower.

Since then, the humidity in the air in the south is high, and the humidity of the clothes people wear is correspondingly high. In this process, the heat emitted by the human body is provided to the wet clothes, which causes us to be wrapped in clothes and feel very cold.

Similarly, the increase or decrease of temperature in the air determines the humidity content in the air. At a certain temperature, water mainly exists in the form of liquid, and then the higher the temperature, the higher the temperature, and the higher the moisture in the air. The lower the temperature, the lower the moisture in the air, because the moisture in the air has been converted into liquid or solid. The greater the humidity in the air in summer, the weaker the ability of evaporation and heat dissipation, which will make people feel hotter. In winter, because the humidity increases, it will accelerate the heat dissipation and make people feel very cold.