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).

As a caveat - CICE in prescribed mode (as is the case for F compsets) also uses the domain file to determine its grid and mask."

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	map_ne30np4_to_oEC60to30v3_aave.161222.nc
atm 2 ocn state	Tempest conserve	map_ne30np4_to_oEC60to30v3_conserve_161222.nc	tempest
atm 2 ocn vector	Tempest conserve	map_ne30np4_to_oEC60to30v3_conserve_161222.nc	tempest
ocn 2 atm fluxes	ESMF aave	map_oEC60to30v3_to_ne30np4_aave.161222.nc
ocn 2 atm state	ESMF aave	map_oEC60to30v3_to_ne30np4_aave.161222.nc
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		map_r05_to_oEC60to30v3_smoothed.r300e600.161222.nc	runoff_map tool to generate nn smoothing 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	domain.lnd.ne30np4_oEC60to30v3.161222.nc
lnd	domain.lnd.ne30np4_oEC60to30v3.161222.nc
ice	domain.ocn.ne30np4_oEC60to30v3.161222.nc
ocn	domain.ocn.ne30np4_oEC60to30v3.161222.nc

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	map_ne120np4_to_oRRS18to6v3_aave.170111.nc
atm 2 ocn state	temp, pressure	Tempest conserve	map_ne120np4_to_oRRS18to6v3_conserve.170111.nc
atm 2 ocn vector	wind	Tempest conserve	map_ne120np4_to_oRRS18to6v3_conserve.170111.nc
ocn 2 atm fluxes	sensible, latent HF	ESMF aave	map_oRRS18to6v3_to_ne120np4_aave.170111.nc
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		map_r0125_to_oRRS18to6v3_nn.170111.nc	runoff tool using the method that was successful for oEC60to30 map
lnd 2 river	runoff		map_ne120np4_to_0.125_nomask_aave.160613.nc
river 2 lnd	flooding		map_0.125_to_ne120np4_nomask_aave.160613.nc

Domain	file
atm	domain.lnd.ne120np4_oRRS18to6v3.170111.nc
lnd	domain.lnd.ne120np4_oRRS18to6v3.170111.nc
ice	domain.ocn.ne120np4_oRRS18to6v3.170111.nc
ocn	domain.ocn.ne120np4_oRRS18to6v3.170111.nc

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	map_ne16np4_to_oQU240_aave.151209.nc
atm 2 ocn state	Tempest conserve	map_ne16np4_to_oQU240_conserve.151209.nc
atm 2 ocn vector	Tempest conserve	map_ne16np4_to_oQU240_conserve.151209.nc
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		map_ais20km_to_oQU240_aave.151209.nc	ESMF aave - also have nearest neighbor map
ice sheet 2 ocean state		map_ais20km_to_oQU240_aave.151209.nc	ESMF aave - also have nearest neighbor map
ice sheet 2 ocean runoff
ocean 2 ice sheet fluxes		map_oQU240_to_ais20km_aave.151209.nc	ESMF aave - also have nearest neighbor map
ocean 2 ice sheet state		map_oQU240_to_ais20km_aave.151209.nc	ESMF aave - also have nearest neighbor map
river 2 ocean		map_r05_to_oQU240_nn.160318.nc	runoff_map tool nn, using 'rtm' gridtype
lnd 2 river		map_ne16np4_nomask_to_0.5x0.5_nomask_aave_da_c110922.nc
river 2 lnd		map_0.5x0.5_nomask_to_ne16np4_nomask_aave_da_c110922.nc

Domain	file
atm	domain.lnd.ne16np4_oQU240.151211.nc
lnd	domain.lnd.ne16np4_oQU240.151211.nc
ice	domain.ocn.ne16np4_oQU240.151211.nc
ocn	domain.ocn.ne16np4_oQU240.151211.nc

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