diff --git a/src/MNH/advection_metsv.f90 b/src/MNH/advection_metsv.f90
index b125cb43489edb91dbd8ba28f4357438cbf1ba2f..15e583d3438875345adcc0771a034b2680137d72 100644
--- a/src/MNH/advection_metsv.f90
+++ b/src/MNH/advection_metsv.f90
@@ -344,6 +344,7 @@ IF (OCLOSE_OUT .AND. OCFL_WRIT .AND. (.NOT. L1D)) THEN
     TZFIELD%LTIMEDEP   = .TRUE.
     CALL IO_WRITE_FIELD(TPFILE,TZFIELD,ZCFLU)
 !
+  IF (.NOT. L2D) THEN
     TZFIELD%CMNHNAME   = 'CFLV'
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CLONGNAME  = 'CFLV'
@@ -355,6 +356,7 @@ IF (OCLOSE_OUT .AND. OCFL_WRIT .AND. (.NOT. L1D)) THEN
     TZFIELD%NDIMS      = 3
     TZFIELD%LTIMEDEP   = .TRUE.
     CALL IO_WRITE_FIELD(TPFILE,TZFIELD,ZCFLV)
+  END IF
 !
     TZFIELD%CMNHNAME   = 'CFLW'
     TZFIELD%CSTDNAME   = ''
diff --git a/src/MNH/default_desfmn.f90 b/src/MNH/default_desfmn.f90
index 1a7ee1d27476b919bce0600c8bfd02f3d0bd49fc..f77c69a49c1aaca734a73688264c0980078bd139 100644
--- a/src/MNH/default_desfmn.f90
+++ b/src/MNH/default_desfmn.f90
@@ -293,8 +293,8 @@ USE MODD_LATZ_EDFLX
 USE MODD_2D_FRC
 USE MODD_BLOWSNOW
 USE MODD_BLOWSNOW_n
-USE MODD_VISC 
 USE MODD_DRAG_n
+USE MODD_VISCOSITY
 #ifdef MNH_FOREFIRE
 USE MODD_FOREFIRE
 #endif
@@ -1470,7 +1470,7 @@ IF (KMI == 1) THEN
   LVISC_TH    = .FALSE.
   LVISC_SV    = .FALSE.
   LVISC_R    = .FALSE.
-  XMU_v   = 0.
+  XMU_V   = 0.
   XPRANDTL = 0.
 ENDIF
 !
diff --git a/src/MNH/modd_viscosity.f90 b/src/MNH/modd_viscosity.f90
index 4fb0abcf08166fedd0a38848a178b502d8ad1913..04851f84058eda72351151e9fa2d98f65aece44c 100644
--- a/src/MNH/modd_viscosity.f90
+++ b/src/MNH/modd_viscosity.f90
@@ -3,7 +3,7 @@
 !MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
 !MNH_LIC for details. version 1.
 !      #######################
-          MODULE MODD_VISC
+          MODULE MODD_VISCOSITY
 !      #######################
 !
 !!****   *MODD_VISCOSITY*  - declaration of viscosity forces constants
@@ -42,7 +42,7 @@ LOGICAL :: LVISC_SV          ! Logical switch to activate viscosity for the
 !                               scalar tracer
 LOGICAL :: LVISC_R          ! Logical switch to activate viscosity for the
 !                                moisture
-REAL, SAVE :: XMU_v        ! Molecular (cinematic) viscosity
+REAL, SAVE :: XMU_V        ! Molecular (cinematic) viscosity
 REAL, SAVE :: XPRANDTL     ! Prandtl number
 
-END MODULE MODD_VISC
+END MODULE MODD_VISCOSITY
diff --git a/src/MNH/modeln.f90 b/src/MNH/modeln.f90
index 5816fefeb23714cd67c27c513e82e01f9f5f4c8e..6836f74faaee3adce34718197801b7bce0494ca9 100644
--- a/src/MNH/modeln.f90
+++ b/src/MNH/modeln.f90
@@ -267,7 +267,7 @@ USE MODD_CH_AERO_n,      ONLY: XSOLORG, XMI
 USE MODD_CH_MNHC_n,      ONLY: LUSECHEM,LCH_CONV_LINOX,LUSECHAQ,LUSECHIC, &
                                LCH_INIT_FIELD
 USE MODD_CLOUD_MF_n  
-USE MODD_VISC
+USE MODD_VISCOSITY
 USE MODD_DRAG_n
 USE MODD_CLOUDPAR_n
 USE MODD_CONF
@@ -374,7 +374,7 @@ USE MODI_INI_MEAN_FIELD
 USE MODI_INITIAL_GUESS
 USE MODI_LES_INI_TIMESTEP_n
 USE MODI_LES_N
-USE MODI_VISC
+USE MODI_VISCOSITY
 USE MODI_LIMA_PRECIP_SCAVENGING
 USE MODI_LS_COUPLING
 USE MODI_MASK_COMPRESS
@@ -1498,7 +1498,7 @@ IF ( LVISC ) THEN
 !
 ZTIME1 = ZTIME2
 !
-   CALL VISCOSITY(CLBCX, CLBCY, NRR, NSV, XMU_v,XPRANDTL,         &
+   CALL VISCOSITY(CLBCX, CLBCY, NRR, NSV, XMU_V,XPRANDTL,         &
                   LVISC_UVW,LVISC_TH,LVISC_SV,LVISC_R,            &
                   LDRAG,    &
                   XUT, XVT, XWT, XTHT, XRT, XSVT,                 &
diff --git a/src/MNH/modn_viscosity.f90 b/src/MNH/modn_viscosity.f90
index d2a9dd8f31e7096efb4181ba34834edb66521612..53c4e38519518af0bc410e824133eaf83c1e17a3 100644
--- a/src/MNH/modn_viscosity.f90
+++ b/src/MNH/modn_viscosity.f90
@@ -1,5 +1,9 @@
+!MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
+!MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
+!MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
+!MNH_LIC for details. version 1.
 !     ###################
-      MODULE MODN_VISC
+      MODULE MODN_VISCOSITY
 !     ###################
 !
 !!****  *MODN_VISCOSITY* - declaration of namelist NAM_VISC
@@ -28,10 +32,10 @@
 !*       0.   DECLARATIONS
 !             ------------
 !
-USE MODD_VISC
+USE MODD_VISCOSITY
 !
 IMPLICIT NONE
 !
-NAMELIST/NAM_VISC/LVISC,LVISC_UVW,LVISC_TH,LVISC_SV,LVISC_R,XMU_v,XPRANDTL
+NAMELIST/NAM_VISC/LVISC,LVISC_UVW,LVISC_TH,LVISC_SV,LVISC_R,XMU_V,XPRANDTL
 !
-END MODULE MODN_VISC
+END MODULE MODN_VISCOSITY
diff --git a/src/MNH/read_desfmn.f90 b/src/MNH/read_desfmn.f90
index 1dc1e41e0c545d83f8b4948b036ed433ce8e4c95..86cde7c7452ef41297279fee4a21aabe068e89fa 100644
--- a/src/MNH/read_desfmn.f90
+++ b/src/MNH/read_desfmn.f90
@@ -250,7 +250,7 @@ USE MODN_CH_ORILAM
 USE MODN_DUST
 USE MODN_SALT
 USE MODN_PASPOL
-USE MODN_VISC
+USE MODN_VISCOSITY
 USE MODN_DRAG_n
 #ifdef MNH_FOREFIRE
 USE MODN_FOREFIRE
diff --git a/src/MNH/read_exsegn.f90 b/src/MNH/read_exsegn.f90
index ea4aa6e26b2b300a0688ffc55024eb0dac4bd471..28c1e5457fce7826746d6649105bd9a79d5ed8d0 100644
--- a/src/MNH/read_exsegn.f90
+++ b/src/MNH/read_exsegn.f90
@@ -374,8 +374,8 @@ USE MODN_CONDSAMP
 USE MODN_BLOWSNOW
 USE MODN_BLOWSNOW_n
 USE MODN_2D_FRC
-USE MODN_VISC
-USE MODD_VISC
+USE MODN_VISCOSITY
+USE MODD_VISCOSITY
 USE MODD_DRAG_n
 !
 IMPLICIT NONE
diff --git a/src/MNH/viscosity.f90 b/src/MNH/viscosity.f90
index ae03806c00327d1c59a9031c6016fe3764870ed6..5d822248a7121c7e01e01fef0f5ca28a00bf4209 100644
--- a/src/MNH/viscosity.f90
+++ b/src/MNH/viscosity.f90
@@ -4,7 +4,7 @@
 !MNH_LIC for details. version 1.
 ! 
 !     #####################
-      MODULE MODI_VISC
+      MODULE MODI_VISCOSITY
 !     #####################
 !
 INTERFACE
@@ -66,7 +66,7 @@ INTERFACE
 !
 END INTERFACE
 !
-END MODULE MODI_VISC
+END MODULE MODI_VISCOSITY
 !
 !-------------------------------------------------------------------------------
 !
@@ -98,7 +98,7 @@ SUBROUTINE VISCOSITY(HLBCX, HLBCY, KRR, KSV, PNU, PPRANDTL,          &
   USE MODI_SHUMAN  
   USE MODD_PARAMETERS
   USE MODD_CONF
-  USE MODD_VISC
+  USE MODD_VISCOSITY
   USE MODD_DRAG_n
   USE MODD_BUDGET
   USE MODE_ll
@@ -127,7 +127,7 @@ SUBROUTINE VISCOSITY(HLBCX, HLBCY, KRR, KSV, PNU, PPRANDTL,          &
      LOGICAL, INTENT(IN) :: OVISC_TH  ! theta
      LOGICAL, INTENT(IN) :: OVISC_SV  ! scalar tracer
      LOGICAL, INTENT(IN) :: OVISC_R   ! moisture
-     LOGICAL, INTENT(IN) :: ODRAG     ! moisture
+     LOGICAL, INTENT(IN) :: ODRAG     ! noslip/freeslip
 !
 ! input variables at time t
      REAL, DIMENSION(:,:,:), INTENT(IN) :: PUT
@@ -190,7 +190,7 @@ IF (OVISC_TH) THEN
               LAP_M(HLBCX,HLBCY,PDXX,PDYY,PDZX,PDZY,PDZZ,PRHODJ,PTHT)
 !
 !
- END IF
+END IF
 !
 IF (LBUDGET_TH) CALL BUDGET (PRTHS,4,'VISC_BU_RU')
 !
@@ -199,7 +199,7 @@ IF (LBUDGET_TH) CALL BUDGET (PRTHS,4,'VISC_BU_RU')
 !*       2.    Viscous forcing for moisture
 !	       ----------------------------
 !
- IF (OVISC_R .AND. (SIZE(PRT,1) > 0)) THEN
+IF (OVISC_R .AND. (SIZE(PRT,1) > 0)) THEN
 !
 !
      DO IK = 1, KRR
@@ -208,7 +208,7 @@ IF (LBUDGET_TH) CALL BUDGET (PRTHS,4,'VISC_BU_RU')
      END DO
 !
 !
- END IF
+END IF
 !
 IF (LBUDGET_RV) CALL BUDGET (PRRS(:,:,:,1),6,'VISC_BU_RRV')
 IF (LBUDGET_RC) CALL BUDGET (PRRS(:,:,:,2),7,'VISC_BU_RRC')
@@ -223,7 +223,7 @@ IF (LBUDGET_RH) CALL BUDGET (PRRS(:,:,:,7),12,'VISC_BU_RRH')
 !*       3.    Viscous forcing for passive scalars
 !	       -----------------------------------
 !
- IF (OVISC_SV .AND. (SIZE(PSVT,1) > 0)) THEN
+IF (OVISC_SV .AND. (SIZE(PSVT,1) > 0)) THEN
 !
 !
       DO IK = 1, KSV
@@ -231,7 +231,7 @@ IF (LBUDGET_RH) CALL BUDGET (PRRS(:,:,:,7),12,'VISC_BU_RRH')
               LAP_M(HLBCX,HLBCY,PDXX,PDYY,PDZX,PDZY,PDZZ,PRHODJ,PSVT(:,:,:,IK))
       END DO
 !
- END IF
+END IF
 !
 IF (LBUDGET_SV) THEN
   DO  IK = 1, KSV
@@ -259,12 +259,12 @@ IF (OVISC_UVW) THEN
        ZLAPu = LAP_M(HLBCX,HLBCY,PDXX,PDYY,PDZX,   &
                    PDZY,PDZZ,PRHODJ,ZY1)
 !! Update halo to compute the source term
-NULLIFY(TZFIELDS_ll)
-CALL ADD3DFIELD_ll(TZFIELDS_ll,ZLAPu)
-CALL UPDATE_HALO_ll(TZFIELDS_ll,IINFO_ll)
-CALL CLEANLIST_ll(TZFIELDS_ll)
+ NULLIFY(TZFIELDS_ll)
+ CALL ADD3DFIELD_ll(TZFIELDS_ll,ZLAPu)
+ CALL UPDATE_HALO_ll(TZFIELDS_ll,IINFO_ll)
+ CALL CLEANLIST_ll(TZFIELDS_ll)
 !
-PRUS = PRUS + MXM(PNU*ZLAPu)
+ PRUS = PRUS + MXM(PNU*ZLAPu)
 !
 !*       4.2   V - component
 !              -------------
@@ -272,21 +272,20 @@ PRUS = PRUS + MXM(PNU*ZLAPu)
   IF (.NOT. L2D) THEN
 
       ZY2 = MYF(PVT) 
-         IF (ODRAG) THEN
-         ZY2(:,:,1) = PDRAG * ZY2(:,:,2)
-         ENDIF
-      ELSE
+      IF (ODRAG) THEN
+        ZY2(:,:,1) = PDRAG * ZY2(:,:,2)
+      ENDIF
 !
       ZLAPv =  LAP_M(HLBCX,HLBCY,PDXX,PDYY,PDZX,   &
                      PDZY,PDZZ,PRHODJ,ZY2)
 !! Update halo to compute the source term
 !
-NULLIFY(TZFIELDS_ll)
-CALL ADD3DFIELD_ll(TZFIELDS_ll,ZLAPv)
-CALL UPDATE_HALO_ll(TZFIELDS_ll,IINFO_ll)
-CALL CLEANLIST_ll(TZFIELDS_ll)
+ NULLIFY(TZFIELDS_ll)
+ CALL ADD3DFIELD_ll(TZFIELDS_ll,ZLAPv)
+ CALL UPDATE_HALO_ll(TZFIELDS_ll,IINFO_ll)
+ CALL CLEANLIST_ll(TZFIELDS_ll)
 !
-PRVS = PRVS + MYM(PNU*ZLAPv)
+ PRVS = PRVS + MYM(PNU*ZLAPv)
 
 ENDIF 
 
@@ -297,31 +296,32 @@ ENDIF
    IKB = JPVEXT + 1
    IKE = SIZE(PWT,3) - JPVEXT
 
-     ZTMP = PWT
+   ZTMP = MZF(1,IKU,1,PWT)
 !
-IF (ODRAG) THEN
+   IF (ODRAG) THEN
          WHERE (PDRAG==-1)
          ZTMP(:,:,IKB) = 0.
          ENDWHERE
-ENDIF
+   ENDIF
 !
    DO IK = 1,JPVEXT
       ZTMP(:,:,IK) = ZTMP(:,:,IKB)
-     ZTMP(:,:,IKE+IK) = ZTMP(:,:,IKE)
+      ZTMP(:,:,IKE+IK) = ZTMP(:,:,IKE)
    END DO
 !
    ZTMP = MZM(1,IKU,1, PNU * &
           LAP_M(HLBCX,HLBCY,PDXX,PDYY,PDZX,PDZY,PDZZ,PRHODJ,ZTMP) )
-
+!
    DO IK = 1,JPVEXT
       ZTMP(:,:,IK) = ZTMP(:,:,IKB)
       ZTMP(:,:,IKE+IK) = ZTMP(:,:,IKE) 
    END DO
-PRWS = PRWS + ZTMP
+   PRWS = PRWS + ZTMP
 !
 !!! Debug provisoire dans le cas ou le noslip est applique jusqu'au bord de
 !sortie de flux en OPEN
-  IF ( LWEST_ll().AND.(ODRAG).AND.(MINVAL(PDRAG(IIU,:))== -1)) THEN
+  IF ( LWEST_ll().AND.(ODRAG)) THEN
+    IF ( MINVAL(PDRAG(IIU,:))== -1) THEN
               DO JK=1,IKU
                 WHERE(PDRAG(IIU,:)== -1)
             PRUS(IIU,:,JK) = PRUS(IIU-1,:,JK)
@@ -329,6 +329,7 @@ PRWS = PRWS + ZTMP
             PRWS(IIU,:,JK) = PRWS(IIU-1,:,JK)
                 ENDWHERE
             END DO
+   ENDIF
   ENDIF
 END IF
 !