city_retrofit/factories/weather_feeders/helpers/weather.py
2020-10-29 08:16:48 -04:00

20 lines
716 B
Python

import math
import pandas as pd
import helpers.constants as cte
class Weather(object):
@staticmethod
def sky_temperature(ambient_temperature):
# Swinbank - Fuentes sky model approximation(1963) based on cloudiness statistics(32 %) in United States
# ambient temperatures( in °C)
# sky temperatures( in °C)
_ambient_temperature = ambient_temperature[['temperature']].to_numpy()
values = []
for temperature in _ambient_temperature:
value = 0.037536 * math.pow((temperature + cte.celsius_to_kelvin), 1.5) \
+ 0.32 * (temperature + cte.celsius_to_kelvin) - cte.celsius_to_kelvin
values.append(value)
return pd.DataFrame(values, columns=['sky temperature'])