Package index • photobiologySunCalc

Package overview

photobiologySunCalc photobiologySunCalc-package: photobiologySunCalc: Sun and Atmosphere Calculations

Astronomy

Astronomical computations of interest in photobiology and meteorology.

solar_time(): Local solar time

as.solar_date(): Convert a solar_time object into solar_date object

is.solar_time() is.solar_date(): Query class

as_tod(): Convert datetime to time-of-day

format(<tod_time>): Encode in a Common Format

print(<tod_time>): Print time-of-day objects

tz_time_diff(): Time difference between two time zones

day_night() day_night_fast() is_daytime() noon_time() sunrise_time() sunset_time() day_length() night_length(): Times for sun positions

sun_angles() sun_angles_fast() sun_elevation() sun_zenith_angle() sun_azimuth() distance_to_sun(): Solar angles

format(<solar_time>): Encode in a Common Format

print(<solar_time>) print(<solar_date>): Print solar time and solar date objects

validate_geocode() is_valid_geocode() length_geocode() na_geocode(): Validate a geocode

irrad_extraterrestrial(): Extraterrestrial irradiance

Atmosphere

Computations related to water vapour in air, and on equivalent air mass at different solar elevations.

water_vp_sat() water_dp() water_fp() water_vp2mvc() water_mvc2vp() water_vp2RH() water_RH2vp() water_vp_sat_slope() psychrometric_constant(): Water vapour pressure

relative_AM(): Relative Air Mass (AM)

ET_ref() ET_ref_day(): Evapotranspiration

net_irradiance(): Net radiation flux