Ignore:
Timestamp:
May 7, 2012, 4:01:14 PM (13 years ago)
Author:
acolaitis
Message:

Thermals:

  • minor changes

Diffusion with Yamada4:

  • corrected numerical oscillation in daytime first-level temperature and momentum predictions through the implementation of a sub-timestep (40 sub-steps) of one loop. (cheap in cpu time). This loop is the one that computes the tke at t+dt from the tke at t.
  • corrected numerical oscillations in nighttime first-level temperature and momentum predictions through the use of a minimum mixing coefficient, computed as in Holtslag and Boville (93), tuned for Mars.
  • yamada4 now takes into account the diffusion of tke (iflag_pbl=9), as it tends to smooth numerical oscillations. Results are very similar to those obtained without diffusion.
File:
1 edited

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  • trunk/LMDZ.MARS/libf/phymars/vdifc.F

    r626 r652  
    384384      CALL yamada4(ngrid,nlay,ptimestep,g,r,pplev,pt
    385385     s   ,pzlev,pzlay,pu,pv,ph,pq,zcdv_true,pq2,zkv,zkh,zkq,ust
    386      s   ,8)
     386     s   ,9)
    387387
    388388      ENDIF
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