Open rp9823 opened 1 month ago
Hi, Thanks for your questions. I also encountered similar issues you posted before and I would like to share my views.
https://jgcri.github.io/gcam_training/gcam.html#Scenario_Adjustments
You should add the policy (e.g. carbon_tax_10_5) in the configuration_policy file. Configuration_ref file defines the reference scenario for GCAM release.
I think the find-path mode should be set to 1. This issue also mention the similar problem.https://github.com/JGCRI/gcam-core/issues/238
I am also quite new to gcam. Please correct if there are errors. Thanks again.
Just to add to that, if I'm running a simple carbon price or emissions constraint scenario, I usually start from configuration_ref.xml
, leave find-path
set to 0, and add the carbon price or emissions constraint file to the scenarioComponents
.
find-path
set to 1 (as in configuration_policy.xml
) indicates to use target-finder mode, which is used for solving a policy that will require multiple iterations of the model itself. For example, if you wanted to hit an end of century radiative forcing target, the exact concentrations of each gas in 2100 aren't known, as a number of different levels of each gas could work. Moreover, the emissions pathways of each gas similarly are not known a priori. For such a policy design, the model will have to run a number of different times, adjusting the GHG price trajectory such that the end of century target is met. In this mode, only the final scenario run is saved and written to the output database.
I have 3 questions: