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Why does RCP1.9 always fail to be solved in SSP2? #242

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wangyingying1227 opened this issue Oct 29, 2022 · 3 comments
Open

Why does RCP1.9 always fail to be solved in SSP2? #242

wangyingying1227 opened this issue Oct 29, 2022 · 3 comments

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@wangyingying1227
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Hello, I have a question. Why does RCP1.9 always fail to be solved in SSP2? Increasing the number of model iterations and lowering the model accuracy have been tried
@wangyingying1227
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There are periods that model can't solve.

Schuch666 pushed a commit to Schuch666/gcam-core that referenced this issue Jun 6, 2023
@sypnl
Pull request JGCRI#242: Siddarth/feature/detailed industry byu
50f797d 
Merge in JGCRI/gcam-core from siddarth/feature/detailed-industry-byu to sha/feature/detailed-industry-byu

* commit '1fcde8304cfafb83a3ce5d78a5fe4501273a9da1':
  Add wind_offshore backup cost
  Change industry supply sector names in GCAM-USA
  Remove Commented Code
@Vapson
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Vapson commented Jan 4, 2024

I wonder if you have solved this problem?

@jayfuhrman
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Hi @wangyingying1227, @Vapson, which model periods are not solving? In SSP/SPA2, carbon pricing does not begin until 2040, which would likely make it infeasible to then return to 1.9 W/m2 under SSP2 technology and GDP growth assumptions which in turn inform constraints on negative emissions deployment. This was our finding for a SSP2-1.9 scenario without direct air capture available from our recent paper (in the supplementary information):

https://iopscience.iop.org/article/10.1088/1748-9326/ac2db0/meta

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@jayfuhrman @wangyingying1227 @Vapson