Champaign, IL weather data specified at hourly intervals in the CST time zone
for the years 2002, 2004, 2005, and 2006. The data includes typical inputs
required for BioCro simulations, with the addition of day_length, which
is specifically required for soybean simulations. Although this quantity can
be calculated by modules during the course of a simulation, it is included in
this weather data to speed up the simulations. The time range is restricted to
the SoyFACE growing season that was used for each year.
This weather data is included in the BioCro package so users can reproduce the calculations of Matthews et al. (2022) [tools:::Rd_expr_doi("10.1093/insilicoplants/diab032")] and for exploratory purposes; it is likely that most BioCro studies will require different data sets, and no attempt is made here to be exhaustive.
soybean_weatherA list of 4 named elements, where each element is a data frame corresponding
to one year of weather data and the name of each element is a year, for
example '2004'. Each data frame has 2952 - 3384 observations
(representing hourly time points) of 14 variables:
year: the year
doy: the day of year
hour: the hour
time_zone_offset: the time zone offset relative to UTC (hr)
precip: preciptation rate (mm / hr)
rh: the ambient relative humidity (dimensionless)
dw_solar: downwelling global solar radiation (J / m^2 / s)
up_solar: upwelling global solar radiation (J / m^2 / s)
netsolar: net global solar radiation (downwelling - upwelling)
(J / m^2 /s)
solar: the incoming photosynthetically active photon flux
density (PPFD) measured on a ground area basis including direct and
diffuse sunlight light just outside the crop canopy
(micromol / m^2 / s)
temp: the ambient air temperature (degrees Celsius)
windspeed: the wind speed in the ambient air just outside the
canopy (m / s)
zen: the solar zenith angle (degrees)
day_length: the length of the daily photoperiod (hours)