Air humidity & Temperature
Humidity of air
Air, depending on its temperature, is able to absorb and store an amount of water vapour. The content of water vapour stored in the atmosphere is called air humidity
The amount of the water vapour in the atmosphere with a maximum of
The temperature describes the thermal state of the atmosphere. At the same time the temperature is a measure of the mean kinetic energy of the air molecules. At the absolute temperature-zero the molecules are not in motion. Readings of temperature are normally given in °C (degrees centigrade). Differences between any two temperatures (readings or calculated) are given in K (Kelvin). The only difference between the centigrade and the Kelvin scale are the zero points. The following is valid:
Temperature and uv radiation balance
The used definition of temperature in meteorology should only describe the mean kinetic energy of the air molecules and not the energy of the radiation. To determine the air temperature both is necessary the thermal balance and an effective protection against uv radiation.
By international agreements the temperature is measured two meters above soil. Temperature readings are always given as shade temperatures.