Emerald platform2.0.1 test #3
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Conflicts: bld/CLMBuildNamelist.pm bld/namelist_files/namelist_defaults_ctsm.xml
…to the model platform; add scripts for creating site level aerodeposition, topo, urban data; modify namelist default to read inputdata from new folder structure for landpress, three-D and Finnmark site Resolve cherry-pick conflicts Conflicts: bld/namelist_files/namelist_defaults_ctsm.xml
…dapt namelist parameters to read these data
irismuz
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Apr 26, 2024
…hanges Dynlakes: fix some subtle issues ### Description of changes Fix a variety of subtle issues with dynamic lakes - particularly the accounting of total water and energy. ### Specific notes This branch contains the following commits: - a9fa875: This is needed to avoid counting lake water in the begwb and endwb terms, which is needed because these are used to calculate gridcell total water store (TWS), which in turn influences the methane code. Because the methane code was tuned around old values of TWS, changing TWS would lead to unintentional – and potentially large – changes in methane terms. Eventually we'd like to remove methane's dependence on TWS, but for now this workaround is needed to avoid changing behavior too much. See ESCOMP#659 (comment) for more details. - 52105c4: This minor fix is needed for the sake of water tracers / water isotopes. It shouldn't have any impact outside of that (because the tracer_ratio of bulk water is 1) - de3e12c and acf0984: This one is especially subtle; it is needed for backwards compatibility with old restart files. The main changes are in de3e12c; acf0984 is just a minor tweak on top of that. The problem is that, on existing initial conditions files, there can be already-existing DYNBAL_BASELINE variables (for LIQUID, ICE & HEAT). But these pre-existing variables will have baseline values of 0 for lake. Before this commit, when you started up from an old initial conditions file, the code would use these 0 values for lake baselines (because baselines are only reset if the user explicitly asks them to be reset with a namelist flag). This commit adds some code to detect if the initial conditions file is old, and if so, recomputes dynbal baselines for lake using the new definition. Note that some even older initial conditions files didn't have the DYNBAL_BASELINE variables at all; those would have been okay before this change: the problem is with initial conditions files that are somewhat but not very old - so have DYNBAL_BASELINE variables on them that use the old definition (where lake baseline values were 0). - 8088c3c: Minor fix for a pre-existing issue - a31875d: I'm not sure if this is actually needed, but I thought it would be good to group together the lake water content and the roughly equal-but-opposite baselines, so that these can cancel to near zero before adding the smaller terms. In principle, this should help maintain precision in these smaller terms. I thought this might help resolve some of the larger-than-expected answer changes I was seeing in testing, but I don't think it actually does... but I still thought this would be good to keep in place. **I have double and triple checked these changes, but it would be good to have an extra set of eyes on them to make sure I did this reordering correctly. In particular, I think there were some subtleties about when a term should accumulate on top of an existing value vs. setting the initial value of a variable.**
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