--- trunk/libf/dyn3d/Dissipation/dissip.f90	2012/01/10 19:02:02	56
+++ trunk/dyn3d/Dissipation/dissip.f	2018/07/20 14:30:23	279
@@ -8,15 +8,19 @@
 
     ! From dyn3d/dissip.F, version 1.1.1.1 2004/05/19 12:53:05
     ! Author: P. Le Van
-    ! Objet : calcul de la dissipation horizontale
-    ! Avec opérateurs star : gradiv2, divgrad2, nxgraro2
+    
+    ! Objet : calcul de la dissipation horizontale. Avec op\'erateurs
+    ! star : gradiv2, divgrad2, nxgraro2.
 
-    USE dimens_m, ONLY: iim, jjm, llm
-    USE comdissnew, ONLY: lstardis, nitergdiv, nitergrot, niterh
-    USE inidissip_m, ONLY: dtdiss, tetah, tetaudiv, tetaurot, cdivu, crot, cdivh
-    use gradiv2_m, only: gradiv2
     use nr_util, only: assert
 
+    USE comdissnew, ONLY: nitergdiv, nitergrot, niterh
+    USE dimensions, ONLY: iim, jjm, llm
+    use divgrad2_m, only: divgrad2
+    use gradiv2_m, only: gradiv2
+    USE inidissip_m, ONLY: dtdiss, tetah, tetaudiv, tetaurot, cdivu, crot, cdivh
+    use nxgraro2_m, only: nxgraro2
+
     REAL, intent(in):: vcov(:, :, :) ! (iim + 1, jjm, llm)
     REAL, intent(in):: ucov(:, :, :) ! (iim + 1, jjm + 1, llm)
     REAL, intent(in):: teta(:, :, :) ! (iim + 1, jjm + 1, llm)
@@ -27,7 +31,6 @@
 
     ! Local:
     REAL gdx(iim + 1, jjm + 1, llm), gdy(iim + 1, jjm, llm)
-    REAL grx(iim + 1, jjm + 1, llm), gry(iim + 1, jjm, llm)
     REAL tedt(llm)
     REAL deltapres(iim + 1, jjm + 1, llm)
     INTEGER l
@@ -45,44 +48,26 @@
     du(:, 1, :) = 0.
     du(:, jjm + 1, :) = 0.
 
-    ! Calcul de la partie grad (div) :
-
-    IF (lstardis) THEN
-       CALL gradiv2(llm, ucov, vcov, nitergdiv, gdx, gdy, cdivu)
-    ELSE
-       CALL gradiv(llm, ucov, vcov, nitergdiv, gdx, gdy, cdivu)
-    END IF
-
+    ! Calcul de la partie grad(div) :
+    CALL gradiv2(ucov, vcov, nitergdiv, gdx, gdy, cdivu)
     tedt = tetaudiv * dtdiss
     forall (l = 1: llm)
        du(:, 2: jjm, l) = - tedt(l) * gdx(:, 2: jjm, l)
        dv(:, :, l) = - tedt(l) * gdy(:, :, l)
     END forall
 
-    ! Calcul de la partie n X grad (rot) :
-
-    IF (lstardis) THEN
-       CALL nxgraro2(llm, ucov, vcov, nitergrot, grx, gry, crot)
-    ELSE
-       CALL nxgrarot(llm, ucov, vcov, nitergrot, grx, gry, crot)
-    END IF
-
+    ! Calcul de la partie n \wedge grad(rot) :
+    CALL nxgraro2(ucov, vcov, nitergrot, gdx, gdy, crot)
     tedt = tetaurot * dtdiss
     forall (l = 1: llm)
-       du(:, 2: jjm, l) = du(:, 2: jjm, l) - tedt(l) * grx(:, 2: jjm, l)
-       dv(:, :, l) = dv(:, :, l) - tedt(l) * gry(:, :, l)
+       du(:, 2: jjm, l) = du(:, 2: jjm, l) - tedt(l) * gdx(:, 2: jjm, l)
+       dv(:, :, l) = dv(:, :, l) - tedt(l) * gdy(:, :, l)
     END forall
 
-    ! calcul de la partie div (grad) :
-
-    IF (lstardis) THEN
-       forall (l = 1: llm) &
-            deltapres(:, :, l) = max(0., p(:, :, l) - p(:, :, l + 1))
-       CALL divgrad2(llm, teta, deltapres, niterh, gdx, cdivh)
-    ELSE
-       CALL divgrad(llm, teta, niterh, gdx, cdivh)
-    END IF
-
+    ! calcul de la partie div(grad) :
+    forall (l = 1: llm) &
+         deltapres(:, :, l) = max(0., p(:, :, l) - p(:, :, l + 1))
+    CALL divgrad2(llm, teta, deltapres, niterh, gdx, cdivh)
     forall (l = 1: llm) dh(:, :, l) = - tetah(l) * dtdiss * gdx(:, :, l)
 
   END SUBROUTINE dissip