Weather variables obtained from NASA's Prediction of Worldwide Energy Resource (https://power.larc.nasa.gov/) for the 591 environments in the historical series analyzed by Krause et al. (2022).
weather
A data frame in messy format with 504 observations on the following 5 variables:
location
locations, 63 levels (observed locations in the historical series)
LON
longitude
LAT
latitude
DOY
day of the year
YYYYMMDD
calendar date in the format YYYY/MM/DD
daysFromStart
days from average planting date
T2M
daily average temperature at 2 meters
T2M_MAX
daily maximum temperature at 2 meters
T2M_MIN
daily minimum average temperature at 2 meters
PRECTOT
rainfall precipitation
WS2M
wind speed at 2 meters
RH2M
relative humidity at 2 meters
T2MDEW
dew point at 2 meters
ALLSKY_SFC_LW_DWN
downward thermal infrared (longwave) radiative flux
ALLSKY_SFC_SW_DWN
insolation incident on a horizontal surface
n
duration of sunshine in hours
VPD
the deficit of vapor pressure
SPV
the slope of saturation vapor pressure curve
ETP
evapotranspiration
PETP
deficit of evapotranspiration
GDD
growing degree-days
FRUE
effect of temperature on radiation use efficiency
T2M_RANGE
daily temperature range at 2 meters
PTT
photothermal time (GDD \(\times\) daylight in hours)
PTR
photothermal ratio (GDD / daylight in hours)