# How do you calculate saturation specific humidity?

**Relative humidity**is just e/es, the ratio of the

**vapor pressure**to

**saturation vapor pressure**or or w/ws, the ratio of mass mixing ratios of water vapor at

**actual**and

**saturation**values. If you have

**specific humidity**, which is the mass

**mixing ratio**of water vapor in air, defined as: q≡mvmv+md=ww+1≈w.

Simply so, how do you calculate saturation humidity?

Divide actual vapor pressure by **saturation** vapor pressure and multiply by 100 to obtain a percentage using the **formula** Relative **Humidity** (percentage) = actual vapor pressure/**saturated** vapor pressure x100. The resulting number indicates relative **humidity**.

Likewise, what is saturation specific humidity? **saturation specific humidity**. The **specific humidity** of water vapor corresponding to the **saturation** mixing ratio.

Also question is, how do you calculate specific humidity?

If m_{v} is the mass of vapour in a volume of air, then **absolute humidity**, or d_{v}, is simply d_{v} = m_{v}/ V, in which V is the volume and d_{v} is expressed in grams per cubic metre.

How do you calculate enthalpy with temperature and humidity?

This is given by the **equation**: h = ha + H*hg; where ha is the specific **enthalpy** of dry air, H is the **humidity** ratio, and hg is the specific **enthalpy** of water vapor. **Calculate** ha. This is given by the **equation** cpa*T; where cpa is the specific heat of air, and T is the **temperature** of air.