b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.193

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
20/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
fortran
Domain
hpc, testing-qa

Research direction

Start by reviewing the listed SourceMods files: build-namelist, namelist_defaults_cam.xml, namelist_definition.xml, zm_conv_intr.F90, and zm_convr.F90, along with the cesm3_0_beta06 sandbox. Compare this case with issue #140 and inspect the linked case directory and diagnostics; completion is not defined beyond testing the total-energy plume calculation with the supplied namelist values.

Written by the indexing model from the issue text.

Description

Purpose:*

To test an implementation of the ZM plume calculation that takes into account total energy and not just potential energy (buoyancy/CAPE). New parameters that account for this are a prescribed initial parcel kinetic energy (zmconv_parcel_ke, J/kg) and a PE to KE energy conversation efficiency (zmconv_pe2ke_eff, fraction). The convective cloud top is then determined where total energy = 0 and not where buoyancy = 0.

zmconv_parcel_ke               = .true.
zmconv_pe2ke_eff               = 0.1
zmconv_pini_ke         = 10.

Description:

Same as 192 (#140) but with:

zmconv_parcel_ke               = .true.
zmconv_pe2ke_eff               = 0.1
zmconv_pini_ke         = 10.

SourceMods:

build-namelist
namelist_defaults_cam.xml
namelist_definition.xml
zm_conv_intr.F90
zm_convr.F90

Case directory:


Sandbox:


Diagnostics:


Output:

  • Raw output on derecho (if still available): /glade/derecho/scratch/hannay/archive/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.193/
  • CAM Climos: /glade/campaign/cgd/amp/amwg/climo/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.193

Contacts:
@cecilehannay @swrneale @dlawrenncar @adamrher @PeterHjortLauritzen @JulioTBacmeister @swrneale @slevis-lmwg @wwieder @olyson @gustavo-marques @fobryan3 @klindsay28 @dabail10 @duvivier @tilmes @mbramberger


Extra details:

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Stars
11
Forks
3
PR merge metrics
No merged PRs in 30d

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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