Page Comparison

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For each map (i.e. FV-FV mono, FV-SE monotr), see the sections below on naming conventions and specific command line options used to produce each map.  

Recommended

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Settings for E3SM

E3SMv2 with pg2

ATM FV grids with physics on the 2x2 physgrid (i.e. pg2) coupled to FV ocean and FV land. E3SMv2 will still use the spectral element dynamical core on the GLL grid, but the coupling between component always happens between the physics columns, which are now on a FV grid. 

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1. SE→FV  for fluxes:  use "SE→FV mono" 
2. SE→FV for state variables: SE->FV intbilin
3. FV→SE for fluxes:  FV→SE monotr
   1. The best map is the transpose of the SE->FV map computed above:
   2. This is the most important map, as it is used to compute the domain files and defines the ocean/land mask on the atm/land grid.  
4. FV→SE for state variables
   1. ocn→atm: currently this map must be the same as used for fluxes (FV→SE monotr) 
   2. lnd→atm:   if land grid resolution >> atmosphere resolution:  "FV→SE mono". 
   3. lnd→atm:   if land grid resolution <= atmosphere resolution:   ESMF's bilin.  (replace by FV→SE intbilin if it becomes available)

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Mapping Analysis and Input Data (lat-lon grids)

For ESMF maps, we previously recommend bilinear maps for upscaling and aave for downscaling.  All the TempestRemap algorithms recommended here should work well for either upscaling or downscaling.  The choice depends mostly on the tradeoff between monotonicity and accuracy:

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