diff --git a/MY_RUN/KTEST/003_KW78/007_ncl_diag/visu_KW78_diag.png b/MY_RUN/KTEST/003_KW78/007_ncl_diag/visu_KW78_diag.png
deleted file mode 100644
index 52376e3401b394d812df4f65ff6341216c741e5e..0000000000000000000000000000000000000000
Binary files a/MY_RUN/KTEST/003_KW78/007_ncl_diag/visu_KW78_diag.png and /dev/null differ
diff --git a/pub/README_NCL630 b/pub/README_NCL630
deleted file mode 100644
index 7cd683456b9218d7463dd15537521f33a7851356..0000000000000000000000000000000000000000
--- a/pub/README_NCL630
+++ /dev/null
@@ -1,2 +0,0 @@
-ncl-6.3.0.tar.gz is ncl_ncarg-6.3.0.Linux_RHEL6.4_x86_64_nodap_gcc472.tar.gz 
-repackaged in directory ncl-6.3.0 for easer installation 
diff --git a/pub/README_NCL640 b/pub/README_NCL640
new file mode 100644
index 0000000000000000000000000000000000000000..99f7bb6023753b4e9569b00b2b6b8f629ba06323
--- /dev/null
+++ b/pub/README_NCL640
@@ -0,0 +1,2 @@
+ncl-6.4.0.tar.gz is ncl_ncarg-6.4.0-RHEL6.4_64bit_nodap_gnu447.tar.gz
+repackaged in directory ncl-6.4.0 for easer installation 
diff --git a/pub/ncl-6.3.0.tar.gz b/pub/ncl-6.3.0.tar.gz
deleted file mode 100644
index 4980a595ed0e1622e5dceb4b8dd15d1fe7bc2143..0000000000000000000000000000000000000000
--- a/pub/ncl-6.3.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:12b51b5ebd5176ceb5453a781a0e3a9d27f46b3b7c4a8c370e8595e9ab977965
-size 75123427
diff --git a/pub/ncl-6.4.0.tar.gz b/pub/ncl-6.4.0.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..ddc40984bc572e56619156897a7b7043c443cd1a
--- /dev/null
+++ b/pub/ncl-6.4.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1ae930159cb4d1050c8a1e6b69b9b9661d5a21490cad233abc0655d02bf3e1b8
+size 88827595
diff --git a/src/configure b/src/configure
index 651f447c2475e9f13b752721152f984b0fbecad0..b911d7ea3cc8c31a70eacef8c9858eaf97926855 100755
--- a/src/configure
+++ b/src/configure
@@ -21,7 +21,7 @@ export MNH_IOCDF4=${MNH_IOCDF4:-1}
 
 export VERSION_OASIS=${VERSION_OASIS:-"mct_v3"}
 export VERSION_TOY=${VERSION_TOY:-"v1-0"}
-export VERSION_NCL=${VERSION_NCL:-"ncl-6.3.0"}
+export VERSION_NCL=${VERSION_NCL:-"ncl-6.4.0"}
 
 export LEN_HREC=${LEN_HREC:-16}