Changeset 2096

Timestamp:

Feb 8, 2019, 5:47:05 PM (6 years ago)

Author:

jvatant

Message:

Readme update of last commit
--JVO

File:

• trunk/LMDZ.TITAN/README (modified) (1 diff)

trunk/LMDZ.TITAN/README

@@ -1524 +1524 @@
   MUST have been set to 1 ( no self-broadening then, assume it's a trace sepecie )
   -> You can't neither have CIA of variable species included upstream in the corr-k
+
+== 08/02/19 == JVO (r2095)
+Update radiative transfer with some of the latest updates in the generic model
+Cf r2056 by AB  and r1987-1991 by JL : 
+  + == 28/08/2018 == JL
+  Start a series of commits to change the upper boundary conditions in the radiative transfer to solve some issues with the last two layers.
+  It seems to be good to have aerosols in the first "radiative layer" of the gcm in the IR but visible does not handle very well diffusion in first layer.
+  Tauaero and tauray are set to 0 (a small value for rayleigh because the code crashes otherwise) in the 4 first semilayers in optcv, but not optci. 
+  This solves random variations of the sw heating at the model top. 
+  We now shift the radiative model top from p=0 to the middle of the last physical layer. This is done by changing pmid and plevrad in callcorrk and some corrections need to be done in gfluxv. 
+  This seems to get rid of the aratic temperature behavior in the last two layers of the model (especially on the night side on synchronous planets).
+  Additional speedup corrections have been made in gfluxi that change nothing to the result.
+  This has been done for water ice in aeropacity, but same correction should probably be done for other aerosol types.
+  Finally, if aerosols are present in the last layer we must account for them. Provides better upper boundary condition in the IR. They must however be put to zero in the sw (see optcv and changes in last commit.)
+ +== 07/01/2019 == AB
+ - Planck step function is replaced by a piecewise linear function in gfluxi.F and sfluxi.F in the computation of B1, B0, PLTOP, PLANCKSUM and BSURF.