diff --git a/scripts/exgdas_enkf_select_obs.sh b/scripts/exgdas_enkf_select_obs.sh
index a8a0cf1b22..9be02ff768 100755
--- a/scripts/exgdas_enkf_select_obs.sh
+++ b/scripts/exgdas_enkf_select_obs.sh
@@ -72,7 +72,8 @@ cd $DATA || exit 8
 ################################################################################
 # ObsInput file from ensemble mean
 rm -f obs_input*
-$NLN $SELECT_OBS obs_input.tar
+rm -f obsinput.tar
+$NLN $SELECT_OBS obsinput.tar
 
 # Whether to save or skip obs
 if [ $RUN_SELECT = "YES" -a $USE_SELECT = "NO" ]; then
diff --git a/src/gsi/setupcldtot.F90 b/src/gsi/setupcldtot.F90
index 3f438ddd17..fc3978e3d2 100755
--- a/src/gsi/setupcldtot.F90
+++ b/src/gsi/setupcldtot.F90
@@ -922,7 +922,7 @@ subroutine init_netcdf_diag_
         endif
      end if
 
-     call nc_diag_init(diag_conv_file)
+     call nc_diag_init(diag_conv_file, append=append_diag)
 
      if (.not. append_diag) then ! don't write headers on append - the module will break?
         call nc_diag_header("date_time",ianldate )
diff --git a/src/gsi/setuplwcp.f90 b/src/gsi/setuplwcp.f90
index a1f9e73d71..7e06144f68 100644
--- a/src/gsi/setuplwcp.f90
+++ b/src/gsi/setuplwcp.f90
@@ -759,7 +759,7 @@ subroutine init_netcdf_diag_
         endif
      end if
 
-     call nc_diag_init(diag_conv_file)
+     call nc_diag_init(diag_conv_file, append=append_diag)
 
      if (.not. append_diag) then ! don't write headers on append - the module will break?
         call nc_diag_header("date_time",ianldate )
diff --git a/src/gsi/setupq.f90 b/src/gsi/setupq.f90
index 9302b891f2..77c43ba121 100644
--- a/src/gsi/setupq.f90
+++ b/src/gsi/setupq.f90
@@ -1073,7 +1073,7 @@ subroutine init_netcdf_diag_
         endif
      end if
 
-     call nc_diag_init(diag_conv_file)
+     call nc_diag_init(diag_conv_file, append=append_diag)
 
      if (.not. append_diag) then ! don't write headers on append - the module will break?
         call nc_diag_header("date_time",ianldate )
diff --git a/src/gsi/setupswcp.f90 b/src/gsi/setupswcp.f90
index fe61fc40d8..c65ad1495c 100644
--- a/src/gsi/setupswcp.f90
+++ b/src/gsi/setupswcp.f90
@@ -804,7 +804,7 @@ subroutine init_netcdf_diag_
         endif
      end if
 
-     call nc_diag_init(diag_conv_file)
+     call nc_diag_init(diag_conv_file, append=append_diag)
 
      if (.not. append_diag) then ! don't write headers on append - the module will break?
         call nc_diag_header("date_time",ianldate )