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Use default option for config_extrap_airtemp in namelist.init_atmosphere #424

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Use default option for config_extrap_airtemp in namelist.init_atmosphere #424

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2 changes: 1 addition & 1 deletion config/mpas/initic/namelist.init_atmosphere
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@
config_tc_vertical_grid = true
/
&interpolation_control
config_extrap_airtemp = 'linear'
config_extrap_airtemp = 'lapse-rate'
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@jim-p-w jim-p-w Apr 17, 2026

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Is this going to impact all of the scenarios which run a forecast?

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@ibanos90 ibanos90 Apr 20, 2026

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That's a good question @jim-p-w! Scenarios that run mpas_init_atmosphere will now be using this option. My test ForecastFromGFSAnalyses confirms it runs with no issue. I will run other tests to confirm any differences.

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@ibanos90 ibanos90 Apr 23, 2026

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Just confirming the scenarios that run mpas_init_atmosphere complete successfully. As can be expected, some differences are found in theta field at level 0 in the init file due to the change in the method used for the extrapolation of air temperature above/below first-guess levels.

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@jim-p-w jim-p-w Apr 28, 2026

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Just confirming the scenarios that run mpas_init_atmosphere complete successfully. As can be expected, some differences are found in theta field at level 0 in the init file due to the change in the method used for the extrapolation of air temperature above/below first-guess levels.

@ibanos90 Thanks for checking this.

/
&preproc_stages
config_static_interp = false
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40 changes: 40 additions & 0 deletions scenarios/ForecastFromERAmlAnalyses.yaml
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@@ -0,0 +1,40 @@
suite: ForecastFromExternalAnalyses

externalanalyses:
resource: "ERA5.GDEX"

experiment:
name: 'ForecastFromERA5mlAnalyses'
prefix: ''

extendedforecast:
meanTimes: T00,T12
lengthHR: 24
outIntervalHR: 12
#execute: False # uncomment if forecasts are already completed

# optionally turn on extended forecast post
post: [verifyobs, verifymodel]

hpc:
CriticalPriority: economy
NonCriticalPriority: economy

members:
n: 1

model:
outerMesh: 120km
innerMesh: 120km

observations: # for optional verification
resource: GladeRDAOnline

workflow:
first cycle point: 20220606T00
final cycle point: 20220607T00
max active cycle points: 4

verifymodel:
#script directory: /glade/derecho/scratch/ivette/pandac/graphics/15km_abiahi/mpas-jedi/graphics
anaRef: 'ERA5'