UtilDewPoint2Humidity Method

Calculate the relative humidity (%) given the ambient temperature (°Celsius) and dew point (°Celsius)

Definition

Namespace: ASCOM.Utilities
Assembly: ASCOM.Utilities (in ASCOM.Utilities.dll) Version: 7.1.3+4851.c5da65c2b

C#

public double DewPoint2Humidity(
	double DewPoint,
	double AmbientTemperature
)

VB

Public Function DewPoint2Humidity ( 
	DewPoint As Double,
	AmbientTemperature As Double
) As Double

C++

public:
virtual double DewPoint2Humidity(
	double DewPoint, 
	double AmbientTemperature
) sealed

Double
Humidity expressed in percent (0.0 .. 100.0)

'Calculation uses the Vaisala formula for water vapour saturation pressure and is accurate to 0.083% over -20C - +50°C

http://www.vaisala.com/Vaisala%20Documents/Application%20notes/Humidity_Conversion_Formulas_B210973EN-F.pdf

InvalidValueException	When dew point < absolute zero or > 100.0C>
InvalidValueException	When ambient temperature < absolute zero or > 100.0C>