diff --git a/LNG_Dispersion/MaplinSands27_profile.csv b/LNG_Dispersion/MaplinSands27_profile.csv
old mode 100644
new mode 100755
index b278f6e28..ab9fb7678
--- a/LNG_Dispersion/MaplinSands27_profile.csv
+++ b/LNG_Dispersion/MaplinSands27_profile.csv
@@ -1,8 +1,8 @@
 m,m/s,C
 z,u,T
-1.9,NaN,14.95
-1.0,4.8,NaN 
-3.0,5.3,NaN
-4.0,NaN,14.75
-7.0,NaN,14.70
-10.,5.5,14.63
+1,4.8,15.0
+2,5.1,14.9
+3,5.3,14.8
+4,5.4,14.7
+7,5.5,14.65
+10,5.5,14.6
diff --git a/LNG_Dispersion/MaplinSands34_profile.csv b/LNG_Dispersion/MaplinSands34_profile.csv
old mode 100644
new mode 100755
index 352980e70..315ab3c2c
--- a/LNG_Dispersion/MaplinSands34_profile.csv
+++ b/LNG_Dispersion/MaplinSands34_profile.csv
@@ -1,8 +1,8 @@
 m,m/s,C
 z,u,T
-1.9,NaN,15.25
-1.0,7.7,NaN
-3.0,8.4,NaN
-4.0,NaN,15.04
-7.0,NaN,14.99
-10.,8.6,14.91
+1,7.7,15.3
+2,8.1,15.2
+3,8.4,15.1
+4,8.5,15.0
+7,8.6,14.9
+10,8.6,14.9
diff --git a/LNG_Dispersion/MaplinSands35_profile.csv b/LNG_Dispersion/MaplinSands35_profile.csv
old mode 100644
new mode 100755
index d29743deb..4f3c472da
--- a/LNG_Dispersion/MaplinSands35_profile.csv
+++ b/LNG_Dispersion/MaplinSands35_profile.csv
@@ -1,8 +1,8 @@
 m,m/s,C
 z,u,T
-1.9,NaN,16.15
-1.0,8.5,NaN
-3.0,9.2,NaN
-4.0,NaN,15.83
-7.0,NaN,15.70
-10.,9.8,15.61
+1,8.5,16.2
+2,8.9,16.1
+3,9.2,15.9
+4,9.5,15.8
+7,9.7,15.7
+10,9.8,15.6