diff --git a/src/LIB/SURCOUCHE/src/fmwrit_ll.f90 b/src/LIB/SURCOUCHE/src/fmwrit_ll.f90
index 136ed1c4ec2853464296abca424b422e4947a538..476113284d41cb37e187641014c16ce30d3ca88d 100644
--- a/src/LIB/SURCOUCHE/src/fmwrit_ll.f90
+++ b/src/LIB/SURCOUCHE/src/fmwrit_ll.f90
@@ -2539,9 +2539,9 @@ CONTAINS
       RETURN
     END IF
     !
-    IF (TPFIELD%CDIR/='XY') THEN
-      CALL PRINT_MSG(NVERB_WARNING,'IO','IO_WRITE_FIELD_BYFIELD_LB','CDIR was not set to "XY" for '//TRIM(YRECFM))
-      TPFIELD%CDIR='XY'
+    IF (TPFIELD%CDIR/='') THEN
+      CALL PRINT_MSG(NVERB_WARNING,'IO','IO_WRITE_FIELD_BYFIELD_LB','CDIR was set for '//TRIM(YRECFM))
+      TPFIELD%CDIR=''
     END IF
     !
     IRIM = (KL3D-2*JPHEXT)/2
diff --git a/src/LIB/SURCOUCHE/src/mode_field.f90 b/src/LIB/SURCOUCHE/src/mode_field.f90
index f29484af76e02c334deaca4aa44d2cb4230e8a28..3492d7b4110c5e1a2ef13ae331139a383af9127e 100644
--- a/src/LIB/SURCOUCHE/src/mode_field.f90
+++ b/src/LIB/SURCOUCHE/src/mode_field.f90
@@ -1570,7 +1570,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBXUM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBXUM'
 TFIELDLIST(IDX)%CUNITS     = 'm s-1'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBXU'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBXUM'
 TFIELDLIST(IDX)%NGRID      = 2
@@ -1584,7 +1584,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBXVM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBXVM'
 TFIELDLIST(IDX)%CUNITS     = 'm s-1'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBX'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBXVM'
 TFIELDLIST(IDX)%NGRID      = 3
@@ -1598,7 +1598,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBXWM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBXWM'
 TFIELDLIST(IDX)%CUNITS     = 'm s-1'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBX'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBXWM'
 TFIELDLIST(IDX)%NGRID      = 4
@@ -1612,7 +1612,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBYUM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBYUM'
 TFIELDLIST(IDX)%CUNITS     = 'm s-1'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBY'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBYUM'
 TFIELDLIST(IDX)%NGRID      = 2
@@ -1626,7 +1626,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBYVM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBYVM'
 TFIELDLIST(IDX)%CUNITS     = 'm s-1'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBYV'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBYVM'
 TFIELDLIST(IDX)%NGRID      = 3
@@ -1640,7 +1640,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBYWM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBYWM'
 TFIELDLIST(IDX)%CUNITS     = 'm s-1'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBY'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBYWM'
 TFIELDLIST(IDX)%NGRID      = 4
@@ -1654,7 +1654,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBXTHM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBXTHM'
 TFIELDLIST(IDX)%CUNITS     = 'K'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBX'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBXTHM'
 TFIELDLIST(IDX)%NGRID      = 1
@@ -1668,7 +1668,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBYTHM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBYTHM'
 TFIELDLIST(IDX)%CUNITS     = 'K'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBY'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBYTHM'
 TFIELDLIST(IDX)%NGRID      = 1
@@ -1695,7 +1695,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBXTKEM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBXTKEM'
 TFIELDLIST(IDX)%CUNITS     = 'm2 s-2'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBX'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBXTKEM'
 TFIELDLIST(IDX)%NGRID      = 1
@@ -1709,7 +1709,7 @@ TFIELDLIST(IDX)%CMNHNAME   = 'LBYTKEM'
 TFIELDLIST(IDX)%CSTDNAME   = ''
 TFIELDLIST(IDX)%CLONGNAME  = 'MesoNH: LBYTKEM'
 TFIELDLIST(IDX)%CUNITS     = 'm2 s-2'
-TFIELDLIST(IDX)%CDIR       = 'XY'
+! TFIELDLIST(IDX)%CDIR       = ''
 TFIELDLIST(IDX)%CLBTYPE    = 'LBY'
 TFIELDLIST(IDX)%CCOMMENT   = '2_Y_Z_LBYTKEM'
 TFIELDLIST(IDX)%NGRID      = 1
diff --git a/src/MNH/ini_lb.f90 b/src/MNH/ini_lb.f90
index 209ae76df53a2e493da80c31c0ef012d119b92ed..4e4600fd8eef1d6699040fb1190420cbaed7f312 100644
--- a/src/MNH/ini_lb.f90
+++ b/src/MNH/ini_lb.f90
@@ -386,7 +386,7 @@ IF(KSIZELBXR_ll  > 0 ) THEN
   !
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -497,7 +497,7 @@ END IF
 IF (NSV_USER>0) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -552,7 +552,7 @@ END IF
 IF (NSV_C2R2END>=NSV_C2R2BEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'm-3'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -607,7 +607,7 @@ END IF
 IF (NSV_C1R3END>=NSV_C1R3BEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'm-3'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -665,7 +665,7 @@ IF (CCLOUD=='LIMA' ) THEN
   IF (NSV_LIMA_CCN_FREE+NMOD_CCN-1 >= NSV_LIMA_CCN_FREE) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -721,7 +721,7 @@ IF (CCLOUD=='LIMA' ) THEN
   IF (NSV_LIMA_IFN_FREE+NMOD_IFN-1 >= NSV_LIMA_IFN_FREE) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -778,7 +778,7 @@ ENDIF
 IF (NSV_ELECEND>=NSV_ELECBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -832,7 +832,7 @@ END IF
 IF (NSV_CHGSEND>=NSV_CHGSBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -887,7 +887,7 @@ END IF
 IF (NSV_CHACEND>=NSV_CHACBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -942,7 +942,7 @@ END IF
 IF (NSV_CHICEND>=NSV_CHICBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -997,7 +997,7 @@ END IF
 IF (NSV_AEREND>=NSV_AERBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1052,7 +1052,7 @@ END IF
 IF (NSV_AERDEPEND>=NSV_AERDEPBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1107,7 +1107,7 @@ END IF
 IF (NSV_DSTEND>=NSV_DSTBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1162,7 +1162,7 @@ END IF
 IF (NSV_DSTDEPEND>=NSV_DSTDEPBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1218,7 +1218,7 @@ END IF
 IF (NSV_SLTEND>=NSV_SLTBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1273,7 +1273,7 @@ END IF
 IF (NSV_PPEND>=NSV_PPBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1329,7 +1329,7 @@ END IF
 IF (NSV_FFEND>=NSV_FFBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1386,7 +1386,7 @@ END IF
 IF (NSV_CSEND>=NSV_CSBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1441,7 +1441,7 @@ END IF
 IF (NSV_LNOXEND>=NSV_LNOXBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -1496,7 +1496,7 @@ END IF
 IF (NSV_LGEND>=NSV_LGBEG) THEN
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'm'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
diff --git a/src/MNH/write_lbn.f90 b/src/MNH/write_lbn.f90
index 1c04daf08bf63d6d504375202f53783d18032980..e42b199cf2fae9018a1e93dc597281fcc7429c2d 100644
--- a/src/MNH/write_lbn.f90
+++ b/src/MNH/write_lbn.f90
@@ -218,7 +218,7 @@ IF (NRR >=1) THEN
   !
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -269,7 +269,7 @@ IF (NSV >=1) THEN
   IF (NSV_USER>0) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -296,7 +296,7 @@ IF (NSV >=1) THEN
   IF (NSV_C2R2END>=NSV_C2R2BEG) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'm-3'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -323,7 +323,7 @@ IF (NSV >=1) THEN
   IF (NSV_C1R3END>=NSV_C1R3BEG) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'm-3'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -352,7 +352,7 @@ IF (NSV >=1) THEN
   IF (CCLOUD=='LIMA' ) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -401,7 +401,7 @@ IF (NSV >=1) THEN
   IF (NSV_ELECEND>=NSV_ELECBEG) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -453,7 +453,7 @@ IF (NSV >=1) THEN
     !
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -499,7 +499,7 @@ IF (NSV >=1) THEN
   !
   TZFIELD%CSTDNAME   = ''
   TZFIELD%CUNITS     = 'kg kg-1'
-  TZFIELD%CDIR       = 'XY'
+  TZFIELD%CDIR       = ''
   TZFIELD%NGRID      = 1
   TZFIELD%NTYPE      = TYPEREAL
   TZFIELD%NDIMS      = 3
@@ -598,7 +598,7 @@ IF (NSV >=1) THEN
       !
       TZFIELD%CSTDNAME   = ''
       TZFIELD%CUNITS     = 'ppp'
-      TZFIELD%CDIR       = 'XY'
+      TZFIELD%CDIR       = ''
       TZFIELD%NGRID      = 1
       TZFIELD%NTYPE      = TYPEREAL
       TZFIELD%NDIMS      = 3
@@ -658,7 +658,7 @@ IF (NSV >=1) THEN
       !
       TZFIELD%CSTDNAME   = ''
       TZFIELD%CUNITS     = 'kg kg-1'
-      TZFIELD%CDIR       = 'XY'
+      TZFIELD%CDIR       = ''
       TZFIELD%NGRID      = 1
       TZFIELD%NTYPE      = TYPEREAL
       TZFIELD%NDIMS      = 3
@@ -744,7 +744,7 @@ IF (NSV >=1) THEN
       !
       TZFIELD%CSTDNAME   = ''
       TZFIELD%CUNITS     = 'ppp'
-      TZFIELD%CDIR       = 'XY'
+      TZFIELD%CDIR       = ''
       TZFIELD%NGRID      = 1
       TZFIELD%NTYPE      = TYPEREAL
       TZFIELD%NDIMS      = 3
@@ -802,7 +802,7 @@ IF (NSV >=1) THEN
       !in the same order as the variables in XSVM (i.e. following JPSALTORDER)
       TZFIELD%CSTDNAME   = ''
       TZFIELD%CUNITS     = 'kg kg-1'
-      TZFIELD%CDIR       = 'XY'
+      TZFIELD%CDIR       = ''
       TZFIELD%NGRID      = 1
       TZFIELD%NTYPE      = TYPEREAL
       TZFIELD%NDIMS      = 3
@@ -850,7 +850,7 @@ IF (NSV >=1) THEN
   IF (NSV_LGEND>=NSV_LGBEG) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'm'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -877,7 +877,7 @@ IF (NSV >=1) THEN
   IF (NSV_PPEND>=NSV_PPBEG) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -904,7 +904,7 @@ IF (NSV >=1) THEN
   IF (NSV_CSEND>=NSV_CSBEG) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3
@@ -932,7 +932,7 @@ IF (NSV >=1) THEN
   IF (NSV_FFEND>=NSV_FFBEG) THEN
     TZFIELD%CSTDNAME   = ''
     TZFIELD%CUNITS     = 'kg kg-1'
-    TZFIELD%CDIR       = 'XY'
+    TZFIELD%CDIR       = ''
     TZFIELD%NGRID      = 1
     TZFIELD%NTYPE      = TYPEREAL
     TZFIELD%NDIMS      = 3