virtual double get_dewpoint_sea_level_degc () const;
virtual double get_dewpoint_degc () const;
virtual double get_pressure_sea_level_inhg () const;
virtual double get_pressure_inhg () const;
virtual double get_density_slugft3 () const;
virtual double get_dewpoint_sea_level_degc () const;
virtual double get_dewpoint_degc () const;
virtual double get_pressure_sea_level_inhg () const;
virtual double get_pressure_inhg () const;
virtual double get_density_slugft3 () const;