FUND EmissionsComponent- is this an error? Or am I missing something?

1

HI,

I do not get the idea in these lines of the emissions component of MimiFUND;
In the initial timestep, you are dividing emissint by energyuse(or GDP); I actually expected a multiplification of emissint by energyuse (as you have done in subsequent timesteps) - since you are using kaya identity. Is this a typo? Am I missing something here?
if is_first(t)
for r in d.regions
v.energint[t, r] = 1
v.energuse[t, r] = p.income[t,r]
v.emissint[t, r] = p.emissint0[r]
v.emission[t, r] = v.emissint[t, r] / v.energuse[t, r]

In the subsequent time step, it is written as:
v.emission[t, r] = (1 - v.scei[t - 1, r]) * v.emissint[t, r] * v.energuse[t, r] - exactly as I expected. Shouldn’t the initial timestep also be a multiplication as in: v.emission[t, r] = v.emissint[t, r] * v.energuse[t, r] instead of v.emission[t, r] = v.emissint[t, r] / v.energuse[t, r]?

2

Hi @pansah thanks for your question! This is probably a question that should be directed at the model authors for clarification, as we Mimi developers don’t actively manage all the models that leverage Mimi. . I wonder if the model documentation would be of help here too ie. Documentation | FUND Model, perhaps section 3. Emission, abatement and costs in version 3.9: http://www.fund-model.org/files/documentation/Fund-3-9-Scientific-Documentation.pdf?

3

Thank you, that was helpful.