The meaning of the first letter in the compset naming is inherited from CESM and has a long history. Below table taken modified from http://www.cesm.ucar.edu/models/cesm1.0/cesm/cesm_doc_1_0_4/x42.html.
“datm” is a data atmosphere model. A “data” model will take the place of a full model and send real values for all expected fields (from files).
“swav” is a stub wave model. A “stub” model just provides a routine for the coupler to call and does nothing. No data sent.
...
Designation | Components | Details |
|---|---|---|
A | datm,dlnd,dice,docn,drof,sglc, swav | All DATA components with stub glc and wav (used primarily for testing the coupler) |
B | NOT USED by E3SM. | The “fully coupled” cases in CESM. |
C | NOT USED by E3SM. | in CESM, POP active with data atm, lnd(runoff), and ice plus stub glc. Instead E3SM has… |
CMPASO | datm,dice,dlnd, mpas-ocean, drof, sglc, swav | mpas-ocean active with data atm, land, runoff and seaice. stub glc and wav. |
D | NOT USED by E3SM | This would be an active MPAS-sea ice only case with data atm and ocn and stub lnd, runoff, glc, wav. Instead E3SM has.. |
DTESTM | datm,slnd, mpas-seaice, docn, drof, sglc, swav | MPAS-seaice with data atm, ocn, and runoff. Stub glc, wav. |
E | eam, elm,mpas-seaice, docn,sglc, swav | EAM, ELM, MOSART and CICE active with data ocean (som mode) plus stub glc, wav. We have these defined but don’t use them. Like an F-case but the sea-ice is fully active and active runoff is added. |
F | eam, elm, cice, docn, srof, sglc, swav (need to replace cice with mpas-seaice equivalent) | EAM, ELM, and old CICE (prescribed mode) active with data ocean (sstdata mode) plus stub rof, wav and glc. What we use when we say “atmosphere only” |
G | NOT used by E3SM | in CESM, POP and CICE active with data atm and and runoff plus stub lnd, glc and wav. Instead we have... |
GMPAS | datm,slnd, mpas-seaice, mpas-ocean, drof, sglc, swav | MPAS-ocean and MPAS-seaice active with data atm and runoff, stub lnd, glc, wav. The ocean and sea-ice version of an F-case. |
H | NOT USED by E3SM | This would be the same as a G case but stub runoff instead of data runoff. We have none of these defined. |
I | datm, elm, mosart, sice,socn, swav, sglc | ELM and MOSART active with data atm and stub ice, ocean, wave and glc. NOTE Some I-cases have stub atm. |
S | satm,slnd,sice,socn,srof,sglc,swav | All STUB components (used for testing only) |
TG | satm, ELMelm, sice,socn,srof, mpas-landice, swav | Active land model and land-ice with stub everything else |
X | xatm,xlnd,xice,xocn,sglc | All DEAD components except for stub glc (used for testing only) |
A_WYCLE | eam,elm,mpas-ocean,mpas-seaice, mosart, sglc | FULLY Active water cycle cases with stub glc, wav |
BGC | eam,elm,mpas-ocean,mpas-seaice, mosart, sglc with BGC pieces turned on. | FULLY active BGC cases with stub glc, wav |
CRYO | eam,elm,mpas-ocean,mpas-seaice, mosart, mpas-landice, stub wav. | FULLY active with stub wav. |
MALI | mpas-landice, satm, slnd, socn, srof, swav | MPAS-landice and stub everything else. |