As air increases in elevation, its relative humidity typically decreases.
As relative humidity increases, the chance of precipitation also tends to increase. This is because higher relative humidity indicates that the air is closer to reaching its saturation point, and clouds are more likely to form and produce precipitation.
Yes. Relative humidity is the amount of water vapor actually in the air compared to the amount that could be in the air (saturation point) at the exisiting temperature. So, if the temperature of the air changes and the amount of water vapor in it does not, the relative humidity will be different. But, if the temperature of the air changes and so does the amount of water vapor in it, then the relative humidity could be the same as before the temperature change. That is to say that the air could contain the same percentage of water vapor that it could hold at each temperature, even though the actual amounts are different.
Relative Humidity can be calculated by this equation: RH = (Vapor Pressure)/(Saturated Vapor Pressure) x100 From what we know about Saturated vapor pressures (saturated warm air has more water vapor than cool air that is saturated) we notice that more water vapor in the same given volume of air would inherently increase SATURATED vapor pressure. Thus, by simple mathematics (explained below), we can see that relative humidity would decrease as temperatures increase. If, for a given fraction y/x, as x increases the fraction becomes smaller and smaller - assuming y is constant.
As a parcel of air rises, it expands and cools adiabatically. This cooling causes relative humidity to increase, as the air temperature drops and its capacity to hold moisture decreases. If the air parcel reaches its dew point temperature, the relative humidity will reach 100% and condensation or cloud formation may occur.
Air temperature rises because the air compresses and warms adiabatically (simply because pressure increases). But no moisture is being added or removed from the air, so the dew point and absolute/specific humidity do not change. What changes is relative humidity, which lowers, due to the warmer air being able to hold more moisture.
The relative humidity decreases
Relative humidity increases.
The relative humidity will decrease.
The relative humidity increases, assuming that the pressure stays the same.
it decreases :)
As relative humidity increases, the chance of precipitation also tends to increase. This is because higher relative humidity indicates that the air is closer to reaching its saturation point, and clouds are more likely to form and produce precipitation.
The relative humidity increases, assuming that the pressure stays the same.
The relative humidity increases, assuming that the pressure stays the same.
The relative humidity increases, assuming that the pressure stays the same.
The relative humidity increases, assuming that the pressure stays the same.
Relative humidity increases
condensation Another question that follows: As an air mass cools to its dew point; relative humidity increases