E3SM v1.0 coupled resolutions and mapping files
- Robert Jacob
- Mark Taylor
- Jon Wolfe
List of resolution combinations that E3SM will use, mapping and domain files, how made.
Preferred Tool = tool ACME uses to make mapping files.
- ESMF = ESMF Regridder, supports aave, bilinear and patchmap options.
- Tempest = TempestRemap
TempestRemap has several new algorithms with native support for spectral element meshes. These algorithms may eventually be implemented in ESMF, so below when we mention TempestRemap, we are referring to the algorithm, not the tool used to compute the maps. For spectral element source meshes, Tempest conserve (non-monotone) is the most accurate map available and is suitable for upscaling and downscaling. It is a good replacement for ESMF bilinear and patchmap options. Tempest conserve+monotone is a potential replacement for ESMF aave maps, but it has two issues that must be resolved before it should be used in an ACME compset: (1) consistent reference element map between HOMME and TempestRemap, and (2) element-scale artifacts that show up in the land mask defined on the atmosphere grid. These issues are being worked on under the SciDAC Multiscale project.
Domain files (from Mariana): "Domain files specify the grid and mask for all of the data models and also for CLM. CLM uses a global surface dataset where it assumes land everywhere - so where there is ocean it assumes wetland. It then uses the domain.lnd.xxx.nc file to determine its land mask (which is really the ocean land mask mapped to the land grid). By this mechanism you do not need different surface datasets when the land mask is changed (which used to be the case a few years ago).
Production Resolutions
Resolutions used in major campaigns.
Low Resolution: ne30_oEC60to30v3_ICG (Water cycle alpha/beta; BGC experiment)
Atm/Lnd ne30, 72L
Ocn/Sea-ice: oEC30to60 (eddy parameterized) , 60 layers.
ice-sheet: ais20km (only for now. Greenland maybe next year)
River model: 0.5 degrees
Mapping | Preferred Tool | Name on input data archive (blank = doesn't exist) | Notes |
|---|---|---|---|
atm 2 ocn fluxes | ESMF aave | ||
atm 2 ocn state | Tempest conserve | tempest | |
atm 2 ocn vector | Tempest conserve | tempest | |
ocn 2 atm fluxes | ESMF aave | ||
ocn 2 atm state | ESMF aave | ||
lnd 2 ice sheet | map_ne30np4_TO_ais20km_aave.151209.nc | NOT IN config_grids.xml | |
ice sheet 2 ocean fluxes | ESMF | To be updated to conservative mapping | |
ice sheet 2 ocean state | ESMF | ||
ice sheet 2 ocean runoff | |||
ocean 2 ice sheet fluxes | ESMF | To be updated to conservative mapping | |
ocean 2 ice sheet state | ESMF | ||
river 2 ocean | runoff_map tool to generate nnsmoothing tool to modify nn map | ||
lnd 2 river | map_ne30np4_to_0.5x0.5rtm_aave_da_110320.nc | ||
river 2 lnd | map_0.5x0.5_nomask_to_ne30np4_nomask_aave_da_c121019.nc |
Domain | file |
|---|---|
atm | |
lnd | |
ice | |
ocn |
High Res: ne120_oRRS18v3_ICG (Water Cycle and Cryosphere experiment):
Atm/Lnd: ne120, 72L
Ocn/Sea-ice: oRRS18to6
Ice Sheet: ais14to4km (want higher resolution. Down to 1km. Need to generate mesh)
River model: 0.125 degrees
2016-3-26: Note: per github issue #770, Ruby Leung stated that the plan is to use a 0.125 (not 0.5) degree River model.
Mapping | Physical examples | Preferred Tool | Name on input data archive (blank = doesn't exist) | Notes |
|---|---|---|---|---|
atm 2 ocn fluxes | precip, shortwave | ESMF aave | ||
atm 2 ocn state | temp, pressure | Tempest conserve | ||
atm 2 ocn vector | wind | Tempest conserve | map_ne120np4_to_oRRS18to6v3_conserve.170111.nc | |
ocn 2 atm fluxes | sensible, latent HF | ESMF aave | ||
ocn 2 atm state | SST | ESMF aave | map_oRRS18to6v3_to_ne120np4_aave.170111.nc | |
lnd 2 ice sheet | SMB | map_ne120np4_to_ais14to4km_aave.160204.nc | ESMF aave | |
ice sheet 2 ocean fluxes | meltwater, SHFLX | ESMF aave - do we also want nearestdtos? | ||
ice sheet 2 ocean state | ice sheet temp | ESMF aave - do we also want nearestdtos? | ||
ice sheet 2 ocean runoff | icebergs | |||
ocean 2 ice sheet fluxes | accretion, SHFLX | ESMF aave - do we also want nearestdtos? | ||
ocean 2 ice sheet state | ocean temp | ESMF aave - do we also want nearestdtos? | ||
river 2 ocean | river discharge | runoff tool using the method that was successful foroEC60to30 map | ||
lnd 2 river | runoff | |||
river 2 lnd | flooding |
Domain | file |
|---|---|
atm | |
lnd | |
ice | |
ocn |
Non-Production Resolutions
Resolution used in testing and other cases.
Ultra Low Resolution: ne11_oQU240 (for coupled integration testing)
Approximately 4 degrees. Replaces FV 1.9x2.5, T42 with gx1v6 cases.
ATM/LND: ne11, 72L option available
Ocn/sea-ice: 240km
ice sheet: ais20km or stub model SGLC.
River model: 0.5 degrees
(NEED TO UPDATE TABLE)
| Mapping | Preferred Tool | Name on input data archive (blank = doesn't exist) | Notes |
|---|---|---|---|
| atm 2 ocn fluxes | ESMF aave | ||
| atm 2 ocn state | Tempest conserve | ||
| atm 2 ocn vector | Tempest conserve | ||
| ocn 2 atm fluxes | ESMF aave | map_oQU240_to_ne16np4_aave.151209.nc | |
| ocn 2 atm state | ESMF aave | map_oQU240_to_ne16np4_aave.151209.nc | |
| ice sheet 2 ocean fluxes | ESMF aave - also have nearest neighbor map | ||
| ice sheet 2 ocean state | ESMF aave - also have nearest neighbor map | ||
| ice sheet 2 ocean runoff | |||
| ocean 2 ice sheet fluxes | ESMF aave - also have nearest neighbor map | ||
| ocean 2 ice sheet state | ESMF aave - also have nearest neighbor map | ||
| river 2 ocean | runoff_map tool nn, using 'rtm' gridtype | ||
| lnd 2 river | |||
| river 2 lnd |