Why does the weather forecast show 40 degrees, but it is still 5 1 degree cold? Shouldn't it be hot and cold here?
Theoretically, the temperature reported in weather forecast refers to the temperature of free-flowing air in natural state. Under normal conditions, it should be said that this temperature is disturbed by human factors as little as possible and by other factors in the natural environment except the sun temperature as little as possible. Therefore, the temperature reported in the weather forecast only represents the degree of cold and warm in the air, but not the outdoor temperature of the human body.
The external temperature parameter perceived by human body is called somatosensory temperature in academic circles. As we all know, our normal body temperature is around 37 degrees Celsius, and the temperature we feel outdoors is often influenced by humidity, wind speed, solar radiation, our daily mood and our clothes. It is precisely because of these factors that we have different perceptions of cold and warm after going out every day.
The temperature in the weather forecast is static windless temperature, and the temperature we feel is also called somatosensory temperature, which will change with the change of the outside world. If it is sunny, you will feel hotter in the sun than in the shade. If it is windy, the body temperature will be cooler. There will be some deviations in the forecast. Thermometers can solve this problem. First of all, we must be clear about the temperature. In meteorology, the physical quantity indicating the degree of air heat and cold is called air temperature, which is referred to as air temperature for short.