branch CNRM_CM6_DEV from GMGEC


(1) Changes related to the introduction of SFXv3.0 in CNRM-CM6 (Bertrand) :

  • variables Ts, Z0, Z0H et Qsat need to go out SURFEX via the interface
  • Calculation of Qsat = Qsati if temperature < 273.16K
  • New parameters for tropical forests, more in agreement with observations (rsmin = 175 and veg = 1.0)
  • The agregation of soil depths is done via an harmonic average rather than arithmetic one
  • NAM_REPROD_OPER allows to desactivate all news and to go back to the default values of parameters
  • Correction of bugs in the calculation of Z0 in COARE and ECUME

(2) ISBA-DF (Bertrand) :

  • Update of certain processes (lateral drainage, extrapolation of the humidity profile, ...) in agreement with the article Decharme, Martin, and Faroux (2013)
  • Coupling with groundwater table (Vergnes et al. 2014)

(3) FLAKE (Patrick & Bertrand) :

  • various bugs and numerous changes related to (1)

(5) ISBA (Emilie & Christine):

  • change of the parameterization of hydric stress on tropical forests
  • other values of parameters for Ag-s and CC.

(6) Coupling SURFEX - OASIS – TRIPv2 (Bertrand):

  • suppression of TRIPv1 and its direct coupling with SURFEX

(7) ISBA (Ramdane & Christine) :

  • dynamical vegetation
  • 19 functional vegtypes instead of 12.

(8) GELATO 1D (Stéphane)

(9) SNOW-ES (Eric & Bertrand):

  • adaptation of ES for its use in CNRM-CM (6 or 12 layers), importing if needed some of the CROCUS features:
    • fine basement layer for the calculation of the soil/snow flux
    • decrease rate of the albedo allowing to suppress the lower bound on glaciers (taking into account of the latitude, the humidification,...)
    • taking into account of the transport of snow by the wind functions of the superficial density
    • ...

(10) FA PREP files can be read as input in PREP step (Bertrand).

(11) Few modifications for the surface chemical emissions

(12) remaining to be discussed with other contributors and users:

  • passing to netcdf4 with compression of the diagnostics

Nearly all of these changes are ready to be included in V8.

As CNRM_CM6_DEV is probably the most transverse and largest contribution, it’s proposed to be included second, just after NEW_PREP.

Beginning this merging in early 2014, it should be waited to be finished and tested around the end of February / beginning of March.