def _get_extra_radiation_shim(datetime_or_doy, solar_constant=1366.1,
method='spencer', epoch_year=2014, **kwargs):
if method == 'spencer':
if not isinstance(datetime_or_doy, (float, int)):
dayofyear = datetime_or_doy.timetuple().tm_yday
else:
dayofyear = datetime_or_doy
B = (2.*pi/365.)*(dayofyear - 1)
RoverR0sqrd = (1.00011 + 0.034221*cos(B) + 0.00128*sin(B) +
0.000719*cos(2.0*B) + 7.7e-05*sin(2.0*B))
Ea = solar_constant * RoverR0sqrd
return Ea
from pvlib import get_extra_radiation
return get_extra_radiation(datetime_or_doy=datetime_or_doy,
solar_constant=solar_constant,
method=method,
epoch_year=epoch_year,
**kwargs)
def _get_extra_radiation_shim(datetime_or_doy, solar_constant=1366.1,
method='spencer', epoch_year=2014, **kwargs):
if method == 'spencer':
if not isinstance(datetime_or_doy, (float, int)):
dayofyear = datetime_or_doy.timetuple().tm_yday
else:
dayofyear = datetime_or_doy
B = (2.*pi/365.)*(dayofyear - 1)
RoverR0sqrd = (1.00011 + 0.034221*cos(B) + 0.00128*sin(B) +
0.000719*cos(2.0*B) + 7.7e-05*sin(2.0*B))
Ea = solar_constant * RoverR0sqrd
return Ea
from pvlib import get_extra_radiation
return get_extra_radiation(datetime_or_doy=datetime_or_doy,
solar_constant=solar_constant,
method=method,
epoch_year=epoch_year,
**kwargs)