How is the somatosensory temperature calculated?

Somatosensory temperature is calculated by considering temperature and other weather factors that will affect human feelings, such as relative humidity, wind speed, sunshine and other factors. When the weather is hot, humidity has a great influence on the somatosensory temperature; When the weather is cold, the wind speed has a great influence on the somatosensory temperature. The air temperature of felt is actually calculated according to the rule of thumb. Zheng Guanghao, a weather analyst at the weather risk management company, said that besides temperature, the main weather factors that affect the feeling of temperature are wind speed, relative humidity and sunshine. Generally speaking, when the weather is cold, "wind speed" is the main factor affecting the somatosensory temperature, and when the weather is hot, the influence of "relative humidity" is more obvious. Zheng Guanghao explained that when the wind blows through the skin, it will take away the heat on the skin surface, so it will feel colder than the actual temperature; Just like walking and cycling in the same place, cycling will feel cooler. The greater the wind, the lower the somatosensory temperature, which is quite intuitive. For example, the temperature is 7 degrees and the relative humidity is 70%. In the windless Nantou area, the somatosensory temperature is 5 degrees. However, in the open and windy coastal Tainan area, if the wind speed is 6 meters per second, the somatosensory temperature will drop to 1 degree, resulting in the feeling of "the same temperature but different cold". Humidity in hot days As for the somatosensory temperature in summer, it is basically based on humidity, because "when the relative humidity of the environment is high, the moisture on the skin surface is not easy to evaporate and cannot take away heat, so it will feel sultry. Zheng Guanghao said. When the temperature is 32 degrees and the wind speed is fixed at 2.5 meters per second, the actual somatosensory temperature can reach 37 degrees if the relative humidity is 70%, and it will rise to 39 degrees if the relative humidity rises to 80%. It is warmer in the sun and colder in the shadow. The influence of sunshine on somatosensory temperature is easy to understand, but it is not very important because of factors such as small influence range or unpredictable. a.udn/focus/20 16/0 1/24/ 17500/index