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Some aqua planet experiments looking at zonal wind and EKE at model top: /wiki/spaces/NGDNA/pages/1060077843
At NE256 (and probably higher) with EAM’s 72L configuration, the model is unstable and the sponge layer needs to be larger (but not stronger):
atm.log.* output:
EAM V3 80L configuration, Reference pressure for the first 12 levels:
1st column: interface pressure (mb)
2nd column: midpoint pressure (mb)
columns 3-6: A and B hybrid coordinate info
| Code Block |
|---|
Layer Locations (*1000)
1 0.1000 0.0000 0.1000
0.1236 0.0000 0.1236
2 0.1472 0.0000 0.1472
0.1819 0.0000 0.1819
3 0.2166 0.0000 0.2166
0.2674 0.0000 0.2674
4 0.3183 0.0000 0.3183
0.3924 0.0000 0.3924
5 0.4665 0.0000 0.4665
0.5740 0.0000 0.5740
6 0.6814 0.0000 0.6814
0.8358 0.0000 0.8358
7 0.9902 0.0000 0.9902
1.2093 0.0000 1.2093
8 1.4284 0.0000 1.4284
1.7344 0.0000 1.7344
9 2.0405 0.0000 2.0405
2.4590 0.0000 2.4590
10 2.8776 0.0000 2.8776
3.4356 0.0000 3.4356
11 3.9936 0.0000 3.9936
4.7150 0.0000 4.7150
12 5.4364 0.0000 5.4364
6.3372 0.0000 6.3372 |
V3 default sponge layer with EAM’s 80L configuration, as a function of model level k
| Code Block |
|---|
sponge layer nu_top viscosity scaling factor
nu_scale_top 1 6.32916693361379
nu_scale_top 2 3.71290112422668
nu_scale_top 3 1.96275667155077
nu_scale_top 4 0.975836740648787
nu_scale_top 5 0.471377418464948
nu_scale_top 6 0.225813746829097 |
EAM’s 72L configuration, Reference pressure for the first 6 levels:
1st column: interface pressure (Pa)
2nd column: midpoint pressure (Pa)
3rd column: layer thickness:
...
| Code Block |
|---|
nu_scale_top 1 8.00000000000000 nu_scale_top 2 8.00000000000000 nu_scale_top 3 8.00000000000000 nu_scale_top 4 8.00000000000000 nu_scale_top 5 8.00000000000000 nu_scale_top 6 4.96653062623658 nu_scale_top 7 2.27814520652286 nu_scale_top 8 1.04498410914579 nu_scale_top 9 0.479333707632238 nu_scale_top 10 0.21987014085820321987014085820 |
SCREAM;'s 128L configuration:
V2 sponge layer with SCREAM’s 128L configuration, as a function of model level k
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