diff --git a/src/makefile b/src/makefile
index 584e0265189b26662443341727c315d6b9904c46..359a6436aefdf7ba9bbb301ece5f94468d106390 100644
--- a/src/makefile
+++ b/src/makefile
@@ -5,7 +5,7 @@ FC       = gfortran
 INCPATH  = /xnilu_wrk/flex_wrk/bin64/grib_api/include
 LIBPATH1 = /xnilu_wrk/flex_wrk/bin64/grib_api/lib
 LIBPATH2 =   /usr/lib/x86_64-linux-gnu/
-FFLAGS   =   -O2 -m64 -mcmodel=medium -fconvert=little-endian -frecord-marker=4 -I$(INCPATH)
+FFLAGS   =   -O2           -m64 -mcmodel=medium -fconvert=little-endian -frecord-marker=4 -I$(INCPATH)
 #FFLAGS   =   -fbounds-check -m64 -mcmodel=medium -fconvert=little-endian -frecord-marker=4 -I$(INCPATH)
 LDFLAGS  = $(FFLAGS) -L$(LIBPATH2) -L$(LIBPATH1) -lgrib_api_f90 -lgrib_api -lm -ljasper
 
diff --git a/src/par_mod.f90 b/src/par_mod.f90
index 46b31c53aa11e52dd9c00a6a6dbea73836108b5c..b48238bafb4a11e7d0b20c13a275f8220c642558 100755
--- a/src/par_mod.f90
+++ b/src/par_mod.f90
@@ -122,12 +122,14 @@ module par_mod
   
   !integer,parameter :: nxmax=361,nymax=181,nuvzmax=92,nwzmax=92,nzmax=92 !FNL XF
   !integer,parameter :: nxmax=361,nymax=181,nuvzmax=152,nwzmax=152,nzmax=152 !ECMWF new 
-  integer,parameter :: nxmax=361,nymax=181,nuvzmax=92,nwzmax=92,nzmax=92 !ECMWF
+  !integer,parameter :: nxmax=361,nymax=181,nuvzmax=92,nwzmax=92,nzmax=92 !ECMWF
   !integer,parameter :: nxmax=361,nymax=181,nuvzmax=26,nwzmax=26,nzmax=26
   !integer,parameter :: nxmax=721,nymax=361,nuvzmax=64,nwzmax=64,nzmax=64
+  integer,parameter :: nxmax=721,nymax=361,nuvzmax=138,nwzmax=138,nzmax=138 !ECMWF 0.5
   !integer,parameter :: nxmax=1201,nymax=235,nuvzmax=58,nwzmax=58,nzmax=58
 
   integer,parameter :: nxshift=359 ! for ECMWF
+  !integer,parameter :: nxshift=718 ! for ECMWF 0.5
   !integer,parameter :: nxshift=0     ! for GFS or FNL (XF)
 
   integer,parameter :: nconvlevmax = nuvzmax-1
@@ -153,8 +155,8 @@ module par_mod
   ! Maximum dimensions of the nested input grids
   !*********************************************
 
-  integer,parameter :: maxnests=0, nxmaxn=0, nymaxn=0
-  !integer,parameter :: maxnests=1,nxmaxn=351,nymaxn=351 !ECMWF
+  !integer,parameter :: maxnests=0, nxmaxn=0, nymaxn=0
+  integer,parameter :: maxnests=1,nxmaxn=361,nymaxn=351 !ECMWF
   !integer,parameter :: maxnests=1, nxmaxn=201, nymaxn=161 ! FNL XF
   ! maxnests                maximum number of nested grids
   ! nxmaxn,nymaxn           maximum dimension of nested wind fields in
@@ -197,8 +199,8 @@ module par_mod
   ! Maximum number of particles, species, and similar
   !**************************************************
 
-  integer,parameter :: maxpart=150000
-  integer,parameter :: maxspec=4
+  integer,parameter :: maxpart=4000000
+  integer,parameter :: maxspec=1
 
 
   ! maxpart                 Maximum number of particles