Relative optical air mass — trans_air_mass

Calculates relative optical air mass. Returns NA for negative values.

trans_air_mass_rel(...)

# S3 method for numeric
trans_air_mass_rel(sol_elevation, ...)

# S3 method for weather_station
trans_air_mass_rel(weather_station, ...)

Arguments

...	Additional parameters passed to later functions.
sol_elevation	Solar elevation in degrees.
weather_station	Object of class weather_station

Value

Relative optical air mass.