es {sirad}

Mean saturation vapour pressure

Description

'es' calculates mean saturation vapour pressure based on air temperature.

Usage

es(Tmax,Tmin)

Arguments

Tmax

Vector of length n containing daily maximum temperature [C].

Tmin

Vector of length n containing daily minumum temperature [C].

Value

Vector of length n of mean saturation vapour pressure [kPa]

Author(s)

Jedrzej S. Bojanowski

References

Allen, R.G., L.S. Pereira, D. Raes, and M. Smith. 1998. Crop Evapotranspiration: Guidelines for computing crop water requirements. Irrigation and Drainage Paper 56, Food and Agriculture Organization of the United Nations, Rome, pp. 300.

Examples

es(Tmax=25.1,Tmin=19.1)