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Add qv photochemistry diagnostics#949

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DWesl wants to merge 21 commits into
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DWesl:add-qv-photochemistry-diagnostics
Closed

Add qv photochemistry diagnostics#949
DWesl wants to merge 21 commits into
NOAA-EMC:developfrom
DWesl:add-qv-photochemistry-diagnostics

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@DWesl
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@DWesl DWesl commented Apr 10, 2025

Description

Adds arrays to accumulate the water vapor photochemistry terms and write them out.

This PR should not change model output, but it will change water vapor diagnostics in the stratosphere and mesosphere to reflect changes from methane oxidation and photodissociation.

I should mention that one of the parameters gets called dtend_qv_ozmix, because the $-\frac{1}{\tau}(r-r_0)$ term it represents here is analagous to the $\left.\frac{\partial(P-L)}{\partial r}\right|_0 (r - r_0)$ ozone photochemistry diagnostic called dtend_o3_ozmix. I don't know how to change the CCPP machinery to change the name of the diagnostic, nor what to change it to if I did.

Issue(s) addressed

Testing

  • Tested on Hera with default global-workflow compilers, probably Intel
  • There should not be changes outside diagnostic output, so existing regression tests should suffice
  • I need to look up how to run the regression tests, and have not run them
  • This should not require baseline updates, unless they track specific humidity diagnostics from the stratosphere or mesosphere

Dependencies

@DusanJovic-NOAA DusanJovic-NOAA changed the title ENH: Add qv photochemistry diagnostics Add qv photochemistry diagnostics Apr 18, 2025
@grantfirl
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@DWesl I don't see a ufs-weather-model pull request for this work. Are you going to add one?

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DWesl commented Apr 18, 2025

@DWesl I don't see a ufs-weather-model pull request for this work. Are you going to add one?

Oh, right. What branch would that be against? develop is pulling in more FV3 changes than mine

@grantfirl
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@DWesl I don't see a ufs-weather-model pull request for this work. Are you going to add one?

Oh, right. What branch would that be against? develop is pulling in more FV3 changes than mine

It needs to go into develop.

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DWesl commented Apr 18, 2025

ufs-community/ufs-weather-model#2707 created to pull these changes into that repository.

@DusanJovic-NOAA
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Merged via #990

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Add diagnostics for water vapor photochemistry parametrization

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