calculateAtmosphericPressure: calculateAtmosphericPressure.

In aWhereAPI/CalculateWeatherVars_aWhere: Calculates intermediate vars in PET Calculations

Description

calculateAtmosphericPressure #function for calculating Atmospheric Pressure

Usage

calculateAtmosphericPressure(elevation, elevAtRefLevel, temp)

Arguments

-	elevation: In m - double
-	elevAtRefLevel: In m - double
-	temp: In C - double

Details

function for calculating Atmospheric Pressure: equantion (3-2) in FAO 56

P atmospheric pressure at elevation z [kPa] Po atmospheric pressure at sea level = 101.3 [kPa] z elevation [m] zo elevation at reference level [m] (normally 2) g gravitational acceleration = 9.807 [m s-2] R specific gas constant = 287 [J kg-1 K-1] al constant lapse rate moist air = 0.0065 [K m-1] TKo reference temperature [K] at elevation zo given by TKo = 273.16 + T (3-3) where: T mean air temperature for the time period of calculation [oC]

Value

double

References

see aWhere API Documentation (insert HTTP address)

Examples

NEED TO INSERT

aWhereAPI/CalculateWeatherVars_aWhere documentation built on March 10, 2020, 12:03 a.m.