def net_shortwave_radiation_daily(rs, albedo):
    """
    :param rs: daily shortwave radiation [MJ m-2 day-1]
    :param albedo: reflection coefficient (0 <= albedo <= 1), which is 0.23 for the hypothetical grass reference crop [-]
    :return: daily net shortwave radiation reaching the earth [MJ m-2 day-1]
    """
    return (1.0 - albedo) * rs