cal_sunsetHourAngle {simET}

Calculating sunset hour angle

Description

Calculating sunset hour angle

Usage

cal_sunsetHourAngle(lat, solar_declination)

Arguments

lat

latitude (Radian), positive for the northern hemisphere and negative for the southern hemisphere.

solar_declination

solar declination(Radina).

Value

A vector for sunset Hour Angle(Radian)

References

Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. FAO Irrigation and drainage paper No. 56. Rome: Food and Agriculture Organization of the United Nations, 1998.