Non orographic gravity waves drag

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Description of the physical process the module takes care of

Parametrization of the momentum flux deposition due to a discrete number of gravity waves randomly generated by setting their waves characteristics (set as Gaussian distribution).

Inherited and adapted from Earth's model (F. Lott), Venus' model (F. LOTT, and S. LEBONNOIS) and Mars' model (G.GILLI, F. FORGET and D.BARDET). Parametrization implemented in the Generic PCM by D.BARDET is the case of Giant Planets and updated J.LIU


F. Lott

Version 14, Gaussian distribution of the source LMDz model online version ADAPTED FOR VENUS / Version adapted on 03/04/2013:


ADAPTED FOR MARS 02/2016

       Revision with     06/2016  
                         01/2020      
ADAPTED FOR GENERIC  D.BARDET    01/2020
UPDATED              J.LIU       12/2021  

Underlying hypotheses and limitations

- input flux compensated in the deepest layers - Variable EP-flux according to PBL variation (max velocity thermals) - reproductibility of the launching altitude calculation - wave characteristic calculation using MOD - adding east_gwstress and west_gwstress variables - The rho (density) at the specific locations is introduced. The equation of EP-flux is corrected by adding the term of density at launch (source) altitude(level)

Equations that are being solved, whenever possible

Name of the Fortran files linked to the param

Important variables and their names in the code

In- and outputs of the module

Dedicated flags to call in the callphys.def