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ICON-eCLM: add coupling field CLM_RAH1 to ICON (fixed flux approach) - #158
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- add global variable q_sf_grc and q_sf_patch - add ram1,rah1 and raw1 as global variables - introduce namelist parameter use_exchcoef_oascoupling - introduce exchange coefficient approach coupling - add coupling in lake landunit - fix namelist parameter use_exchcoef_oascoupling - use effective moisture resistance for raw1 at BareGroundFluxesMod.F90 - combine parallel resistances by area-weighting their conductances - guard the gridcell resistance inversion against spval and unset patches
used for downscaling in eCLM
- both models resolve a visible and a near-infrared band, which are now coupled. Send them as OASIS bundled (3D) fields instead, so the number of coupling variables and the namcouple stay unchanged - the bundle size is declared only through var_nodims(2) in oasis_def_var - replacing the artificial 50/50 split of shortwave radiation bands with the input from ICON
kvrigor
approved these changes
Oct 27, 2026
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CLM_RAH1in the default flux-coupling path, so ICON update TKE based on aerodynamic heat resistance of eCLM.Changes
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