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@imreddyTeja imreddyTeja commented Apr 11, 2025

Purpose

closes #1091

Content

  • allocate space in the bucket cache for e_per_area
  • extend total_energy_per_area! for the BucketModel
  • update e_per_area using total_energy_per_area! in update_aux!
  • test from coupler - see PR

  • I have read and checked the items on the review checklist.

@kmdeck
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kmdeck commented Apr 11, 2025

@imreddyTeja we have some functionality for this recently added: total_energy_per_area! and total_liq_water_vol_per_area!

@juliasloan25
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@imreddyTeja we have some functionality for this recently added: total_energy_per_area! and total_liq_water_vol_per_area!

I don't think those functions are extended for the bucket though. It seems like there are 2 options for how we can move this forward to remove get_new_cache in the coupler:

  • add e_per_area to the bucket cache, like Teja has in this PR
  • extend total_energy_per_area! for the bucket, so the coupler can call that

I slightly prefer allocating space for it in the bucket cache, so we can access that field directly instead of allocating or using temp fields in the coupler

@kmdeck
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kmdeck commented Apr 15, 2025

@juliasloan25 that works! We can add the variables to the bucket cache and update them in ClimaLand using the extended methods of total_energy_per_area! (for the bucket)

@juliasloan25
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@imreddyTeja do you want to continue working on this, or do you want me to take it from here?

@juliasloan25 juliasloan25 reopened this Apr 17, 2025
@imreddyTeja
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@imreddyTeja do you want to continue working on this, or do you want me to take it from here?

I'm fine with either. If I do it, I might need a bit of guidance on synchronizing the changes between ClimaLand and the coupler.

Also a very minor thing: right now the field is called e_per_area. Should it be changed to energy_per_area per #1091 ?

@juliasloan25 juliasloan25 force-pushed the tr/add-energy_per_area-bucket branch 2 times, most recently from 4648238 to 1fd5811 Compare April 24, 2025 21:14
@juliasloan25 juliasloan25 marked this pull request as ready for review April 24, 2025 21:18
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coderabbitai bot commented Apr 24, 2025

Walkthrough

This change extends the BucketModel by adding two new auxiliary prognostic variables: total_energy and total_water, both associated with the :surface auxiliary domain. The make_update_aux function is updated to call two new functions, ClimaLand.total_energy_per_area! and ClimaLand.total_liq_water_vol_per_area!, which compute and update these new auxiliary fields. The energy calculation integrates soil sensible heat and accounts for snow ice energy, while the water calculation sums snow water equivalent, subsurface, and surface water storage. These additions do not modify existing logic or error handling outside these updates.

Assessment against linked issues

Objective Addressed Explanation
Add energy_per_area (as total_energy) to Bucket cache (#1091)
Ensure energy_per_area is updated with auxiliary variables (#1091)
Provide function to compute energy per area for BucketModel (#1091)

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Actionable comments posted: 0

🧹 Nitpick comments (1)
src/standalone/Bucket/Bucket.jl (1)

584-614: Energy calculation implementation is correct.

The function properly computes total energy by integrating soil thermal energy and subtracting snow energy. Consider adding units (J/m²) to the docstring for clarity.

-the total energy per unit ground area for the `BucketModel`.
+the total energy per unit ground area (J/m²) for the `BucketModel`.
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src/standalone/Bucket/Bucket.jl (4)

323-324: New auxiliary type looks good.

Adding the floating-point type (FT) to the auxiliary_types tuple correctly supports the new e_per_area variable.


339-340: Variable naming is consistent.

Adding e_per_area to auxiliary_vars aligns with project's naming conventions and PR objectives.


355-356: Domain assignment is appropriate.

The :surface domain for e_per_area is consistent with similar surface-related variables.


503-504: Implementation location is logical.

The placement of the e_per_area computation at the end of update_aux! is appropriate as it depends on previously updated state.

@juliasloan25 juliasloan25 force-pushed the tr/add-energy_per_area-bucket branch 2 times, most recently from 2cef12d to 0152549 Compare May 1, 2025 23:44
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Actionable comments posted: 1

🧹 Nitpick comments (1)
src/standalone/Bucket/Bucket.jl (1)

609-614: Unused parameter t – minor tidy-up.

total_energy_per_area! (and the water counterpart) ignore t. Consider prefixing it with _ or removing it to silence unused-variable lint.

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🔇 Additional comments (1)
src/standalone/Bucket/Bucket.jl (1)

324-326: Aux cache extension looks correct.

Thanks for appending total_energy and total_water to auxiliary_types; the tuple order stays consistent with the corresponding auxiliary_vars entry, so the cache will initialise properly.

@juliasloan25 juliasloan25 force-pushed the tr/add-energy_per_area-bucket branch 2 times, most recently from ea5237d to 855d703 Compare May 2, 2025 16:43
@juliasloan25 juliasloan25 requested a review from kmdeck May 2, 2025 21:17
@juliasloan25 juliasloan25 changed the title Add e_per_area to bucket cache Add energy, water to bucket cache May 2, 2025
@juliasloan25 juliasloan25 force-pushed the tr/add-energy_per_area-bucket branch from 855d703 to 6edfb00 Compare May 5, 2025 16:52
t,
)
ρ_cloud_liq = LP.ρ_cloud_liq(model.parameters.earth_param_set)
@. surface_field = (Y.bucket.σS + Y.bucket.W + Y.bucket.Ws) * ρ_cloud_liq
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This is converting from a liquid volume per area to a mass per area. I think given the function name this should be handled in the coupler...

@juliasloan25 juliasloan25 force-pushed the tr/add-energy_per_area-bucket branch from 6edfb00 to 8629643 Compare May 28, 2025 17:19
@juliasloan25 juliasloan25 enabled auto-merge May 28, 2025 17:21
@juliasloan25 juliasloan25 merged commit 38c0d26 into main May 28, 2025
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@juliasloan25 juliasloan25 deleted the tr/add-energy_per_area-bucket branch May 28, 2025 18:04
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Add energy_per_area to Bucket cache
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