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@kdorheim kdorheim commented Oct 22, 2024

Eventually, this PR will incorporate the climate effects of H2 emissions into Hector's radiative forcing calculations. Multiple branches/PRs will be merged here before it is ready to be merged into dev and ready for a model release.

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PRs Old-New Test Update? Description
#751 no Add H2 emissions as input and expose CH4 lifetime OH as output
#758 no* Add coefficient to account for the effects of $H_2$ emissions on the OH sink for $CH_4$
#775 no* Indirect Effects of $H_2$: stratospheric water vapor
#780 no* Indirect Effects of $H_2$: trop O3

no* - indicates that there is no change in the old-new test data because $H{_2}$ emissions are set to 0 at the

@JGCRI JGCRI deleted a comment from github-actions bot Mar 10, 2025
@JGCRI JGCRI deleted a comment from github-actions bot Mar 10, 2025
* Implement the H2 effects on CH4 lifetime with respect to OH. 
* Change the CH4_LIFETIME_OH R function to be more descriptive
@JGCRI JGCRI deleted a comment from github-actions bot Mar 19, 2025
kdorheim added 12 commits April 22, 2025 16:04
Add the H2 emission contribution to the stratospheric H2O vapor.
Change how the H2 effects on tau OH is implemented so that now the H2 coefficient varies with the CO coefficient.
(1) Use the value from Sand et al. 2023 ST4 for the H2 emission coefficient for the strat. H2O water vapor forcing. This prevents double-counting forcing effects from CH4.
(2) Use consistent formatting to cite the Sand et al. 2023 parameters used in hector.
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2 participants