List of resolution combinations that

...

E3SM will use, mapping and domain files

...

, how made.

Preferred Tool = tool ACME wants to use 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.  

...

Production Resolutions

Resolutions used in major campaigns.

Low Resolution

...

Approximately 2 degrees.  Replaces FV 1.9x2.5, T42 with  gx1v6 cases.

ATM/LND:   ne16, 30L (72L option available)

Ocn/sea-ice:   240km

ice sheet:    ais20km or stub model SGLC.

...

: 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

Medium Resolution (res used for first ACME B-case.  Won't be developed further.)

Approximately 1 degree.  Replaces FV 0.9x1.25, T85 with  gx1v6 cases.

Atm/Lnd:   ne30, 30L (72L option available)

Ocn/Sea-ice:   120km

ice-sheet: stub

River model:  0.5 degrees

config_grid.xml entry:

<GRID sname="ne30np4_mpas120" alias="ne30_m120"> a%ne30np4_l%ne30np4_oi%mpas120_r%r05_m%mpas120_g%null_w%null</GRID>

...

High Res: ne120_oRRS18v3_ICG (Water Cycle and Cryosphere experiment):

Atm/Lnd

...

:  ne120, 72L

Ocn/Sea-ice:  

...

ice-sheet:   ais20km (only for now. Greenland maybe next year)

River model: 0.5 degrees

...

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.  

High Res Transition Grid (Proposed)

For use as a high-throughput testing case for tuning v1 low-res atmosphere coupled to eddy permitting ocean (avoids biases from ocean eddy parameterization that will be in the medium res grid but not in the high res grid).  

Per coupled model group:  Decision on if this grid will be used to be based on cost vs the medium resolution (BGC) grid.  It is possible that this configuration will only be slightly more expensive than the medium resolution BGC grid, while having biases similar to the high-res grid.  Hence this configuration might be a better warmup problem for high-res then using the BGC grid.  

Atm/Lnd:  ne30, 72L

Ocn/Sea-ice:   oRRS30to10

Ice Sheet:  ais20km

River model: 0.5 degrees

High Res (Water Cycle and Cryosphere experiment):

Atm/Lnd:  ne120, 72L

Ocn/Sea-ice:   oRRS15to5

Ice Sheet:  ais14to4km (want higher resolution.  Down to 1km.  Need to generate mesh)

River model: 0.5 degrees

2016-3-26: Note: per github issue #770, Ruby Leung stated  that the plan is to use a 0.125 degree River model.  

...

Mapping

...

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)

map_

oQU240_to_

ne16np4_aave.

151209.nc

map_

oQU240_to_

ne16np4_aave.

151209.nc