regionalized water flows

[robyistrate]

BW/ecoinvent’s biosphere does not differentiate regionalized water flows (natural resource and emissions to air), whereas SimaPro does. When exporting inventories to the SimaPro format, water flows are not regionalized. For example, instead of “Water, well, in ground, CN” for a unit process located in China, the exported flow is always “Water, unspecified natural origin.” Is there a reason for this?

I’ve worked a potential solution (robyistrate@ddd4a72), but I haven’t tested it extensively yet. Before proceeding further, I’d like to check whether I might be missing something about how the current export setup works.

[romainsacchi]

Hi @robyistrate,
you're right. There's no specific reason for this. I just have not thought about it.
If you think you have a good fix, please submit a PR and I'll merge it.

[romainsacchi]

@codex suggest a PR to address this issue

[chatgpt-codex-connector]

Summary

• Taught get_simapro_biosphere to preserve regional flow variants by returning location-aware mappings when multiple SimaPro names exist for the same ecoinvent flow. brightpath/utils.pyL27-L77
• Added a resolver in BrightwayConverter that selects the appropriate SimaPro biosphere name based on exchange or activity geography, reusing the logic when exporting resources and emissions. brightpath/bwconverter.pyL73-L160 brightpath/bwconverter.pyL446-L517

Testing

• ✅ pytest

View task →

[romainsacchi]

Hi @robyistrate there's a PR for that #4
It comes straight out of AI; hence, it may be BS, but if you have 5 min to test it out, that's great.
Otherwise, if you have a sample BW file to try it with, I can do that.