tonyear.calculate_tonyears#
- tonyear.calculate_tonyears(method: str, baseline: ndarray, time_horizon: int, delay: int, discount_rate: float) dict [source]#
This function calculates the benefit of a delayed emission according one of two ton-year accounting methods.
- Parameters:
- methodstr
The ton-year accounting method (Moura Costa: ‘mc’, Lashof: ‘lashof’, Climate Action Reserve: ‘car’, or Quebec: ‘qc’)
- baselinenp.ndarray
Array modeling the residence of an emission in the atmosphere over time, i.e. a decay curve / impulse response function
- time_horizonint
Specifies the period over which the impact of an emission is considered (years)
- delayint
Specifies the emission delay for which a ton-year benefit will be calculated (years)
- discount_ratefloat
Specifies the discount rate to apply time preference to both costs and benefits over the time horizon. Extreme caution should be used when applying discounting within ton-year accounting. See documentation for more details.
- Returns:
- method_dictdict
Return dict with the following keys:
parameters : key parameters used for the calculation
baseline : array modeling baseline emission curve, discounted if applicable
scenario : array modeling the scenario curve, discounted if applicable
baseline_atm_cost : the cost of of a baseline emission
benefit : the benefit of delaying an emission, calculated according to specified accounting method
num_for_equivalence : the ratio between the baseline cost and the benefit