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Commit 6ecb30a4 authored by Espen Sollum's avatar Espen Sollum
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Merged changes from CTBTO project

parent 61e07bac
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src/FLEXPART.f90
View file @ 6ecb30a4
......@@ -32,6 +32,14 @@ program flexpart
! 18 May 1996 *
! *
!*****************************************************************************
! Changes: *
! Unified ECMWF and GFS builds *
! Marian Harustak, 12.5.2017 *
! - Added detection of metdata format using gributils routines *
! - Distinguished calls to ecmwf/gfs gridcheck versions based on *
! detected metdata format *
! - Passed metdata format down to timemanager *
!*****************************************************************************
! *
! Variables: *
! *
......@@ -45,12 +53,16 @@ program flexpart
use conv_mod
use netcdf_output_mod, only: writeheader_netcdf
use random_mod, only: gasdev1
use class_gribfile
implicit none
integer :: i,j,ix,jy,inest
integer :: idummy = -320
character(len=256) :: inline_options !pathfile, flexversion, arg2
integer :: metdata_format = GRIBFILE_CENTRE_UNKNOWN
integer :: detectformat
! Initialize arrays in com_mod
......@@ -171,6 +183,22 @@ program flexpart
endif
call readavailable
! Detect metdata format
!**********************
metdata_format = detectformat()
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
print *,'ECMWF metdata detected'
elseif (metdata_format.eq.GRIBFILE_CENTRE_NCEP) then
print *,'NCEP metdata detected'
else
print *,'Unknown metdata format'
return
endif
! If nested wind fields are used, allocate arrays
!************************************************
......@@ -187,7 +215,11 @@ program flexpart
write(*,*) 'call gridcheck'
endif
call gridcheck
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
call gridcheck_ecmwf
else
call gridcheck_gfs
end if
if (verbosity.gt.1) then
CALL SYSTEM_CLOCK(count_clock, count_rate, count_max)
......@@ -410,7 +442,7 @@ program flexpart
print*,'call timemanager'
endif
call timemanager
call timemanager(metdata_format)
! NIK 16.02.2005
do i=1,nspec
......
src/FLEXPART_MPI.f90
View file @ 6ecb30a4
......@@ -32,6 +32,14 @@ program flexpart
! 18 May 1996 *
! *
!*****************************************************************************
! Changes: *
! Unified ECMWF and GFS builds *
! Marian Harustak, 12.5.2017 *
! - Added detection of metdata format using gributils routines *
! - Distinguished calls to ecmwf/gfs gridcheck versions based on *
! detected metdata format *
! - Passed metdata format down to timemanager *
!*****************************************************************************
! *
! Variables: *
! *
......@@ -46,12 +54,16 @@ program flexpart
use mpi_mod
use netcdf_output_mod, only: writeheader_netcdf
use random_mod, only: gasdev1
use class_gribfile
implicit none
integer :: i,j,ix,jy,inest
integer :: idummy = -320
character(len=256) :: inline_options !pathfile, flexversion, arg2
integer :: metdata_format = GRIBFILE_CENTRE_UNKNOWN
integer :: detectformat
! Initialize mpi
......@@ -196,6 +208,22 @@ program flexpart
endif
call readavailable
! Detect metdata format
!**********************
metdata_format = detectformat()
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
print *,'ECMWF metdata detected'
elseif (metdata_format.eq.GRIBFILE_CENTRE_NCEP) then
print *,'NCEP metdata detected'
else
print *,'Unknown metdata format'
return
endif
! If nested wind fields are used, allocate arrays
!************************************************
......@@ -212,7 +240,12 @@ program flexpart
write(*,*) 'call gridcheck'
endif
call gridcheck
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
call gridcheck_ecmwf
else
call gridcheck_gfs
end if
if (verbosity.gt.1 .and. lroot) then
call system_clock(count_clock, count_rate, count_max)
......@@ -455,7 +488,7 @@ program flexpart
endif
call timemanager
call timemanager(metdata_format)
! NIK 16.02.2005
......
src/calcmatrix.f90
View file @ 6ecb30a4
......@@ -19,7 +19,7 @@
! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. *
!**********************************************************************
subroutine calcmatrix(lconv,delt,cbmf)
subroutine calcmatrix(lconv,delt,cbmf,metdata_format)
! o i o
!*****************************************************************************
! *
......@@ -29,23 +29,34 @@ subroutine calcmatrix(lconv,delt,cbmf)
! *
! Petra Seibert, Bernd C. Krueger, 2000-2001 *
! *
!*****************************************************************************
! Changes: *
! changed by C. Forster, November 2003 - February 2004 *
! array fmassfrac(nconvlevmax,nconvlevmax) represents *
! the convective redistribution matrix for the particles *
! *
! Unified ECMWF and GFS builds *
! Marian Harustak, 12.5.2017 *
! - Merged calcmatrix and calcmatrix_gfs into one routine using if-then *
! for meteo-type dependent code *
!*****************************************************************************
! *
! lconv indicates whether there is convection in this cell, or not *
! delt time step for convection [s] *
! cbmf cloud base mass flux *
! metdata_format format of metdata (ecmwf/gfs) *
! *
!*****************************************************************************
use par_mod
use com_mod
use conv_mod
use class_gribfile
implicit none
real :: rlevmass,summe
integer :: metdata_format
integer :: iflag, k, kk, kuvz
......@@ -76,8 +87,12 @@ subroutine calcmatrix(lconv,delt,cbmf)
! Emanuel subroutine needs pressure in hPa, therefore convert all pressures
do kuvz = 2,nuvz
k = kuvz-1
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
pconv(k) = (akz(kuvz) + bkz(kuvz)*psconv)
phconv(kuvz) = (akm(kuvz) + bkm(kuvz)*psconv)
else
phconv(kuvz) = 0.5*(pconv(kuvz)+pconv(k))
endif
dpr(k) = phconv(k) - phconv(kuvz)
qsconv(k) = f_qvsat( pconv(k), tconv(k) )
......
src/calcpar.f90
View file @ 6ecb30a4
......@@ -19,7 +19,7 @@
! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. *
!**********************************************************************
subroutine calcpar(n,uuh,vvh,pvh)
subroutine calcpar(n,uuh,vvh,pvh,metdata_format)
! i i i o
!*****************************************************************************
! *
......@@ -36,13 +36,25 @@ subroutine calcpar(n,uuh,vvh,pvh)
! convection scheme: *
! new variables in call to richardson *
! *
! CHANGE 17/11/2005 Caroline Forster NCEP GFS version *
! *
! Changes, Bernd C. Krueger, Feb. 2001: *
! Variables tth and qvh (on eta coordinates) in common block *
! *
! Unified ECMWF and GFS builds *
! Marian Harustak, 12.5.2017 *
! - Merged calcpar and calcpar_gfs into one routine using if-then *
! for meteo-type dependent code *
!*****************************************************************************
! Changes, Bernd C. Krueger, Feb. 2001:
! Variables tth and qvh (on eta coordinates) in common block
!*****************************************************************************
! *
! Variables: *
! n temporal index for meteorological fields (1 to 3) *
! uuh *
! vvh *
! pvh *
! metdata_format format of metdata (ecmwf/gfs) *
! *
! Constants: *
! *
......@@ -55,13 +67,15 @@ subroutine calcpar(n,uuh,vvh,pvh)
use par_mod
use com_mod
use class_gribfile
implicit none
integer :: n,ix,jy,i,kz,lz,kzmin
integer :: metdata_format
integer :: n,ix,jy,i,kz,lz,kzmin,llev,loop_start
real :: ttlev(nuvzmax),qvlev(nuvzmax),obukhov,scalev,ol,hmixplus
real :: ulev(nuvzmax),vlev(nuvzmax),ew,rh,vd(maxspec),subsceff,ylat
real :: altmin,tvold,pold,zold,pint,tv,zlev(nuvzmax)
real :: altmin,tvold,pold,zold,pint,tv,zlev(nuvzmax),hmixdummy
real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax)
real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax)
real :: pvh(0:nxmax-1,0:nymax-1,nuvzmax)
......@@ -110,8 +124,25 @@ subroutine calcpar(n,uuh,vvh,pvh)
! 2) Calculation of inverse Obukhov length scale
!***********************************************
if (metdata_format.eq.GRIBFILE_CENTRE_NCEP) then
! NCEP version: find first level above ground
llev = 0
do i=1,nuvz
if (ps(ix,jy,1,n).lt.akz(i)) llev=i
end do
llev = llev+1
if (llev.gt.nuvz) llev = nuvz-1
! NCEP version
! calculate inverse Obukhov length scale with tth(llev)
ol=obukhov(ps(ix,jy,1,n),tt2(ix,jy,1,n),td2(ix,jy,1,n), &
tth(ix,jy,2,n),ustar(ix,jy,1,n),sshf(ix,jy,1,n),akm,bkm)
tth(ix,jy,llev,n),ustar(ix,jy,1,n),sshf(ix,jy,1,n),akm,bkm,akz(llev),metdata_format)
else
llev=0
ol=obukhov(ps(ix,jy,1,n),tt2(ix,jy,1,n),td2(ix,jy,1,n), &
tth(ix,jy,2,n),ustar(ix,jy,1,n),sshf(ix,jy,1,n),akm,bkm,akz(llev),metdata_format)
end if
if (ol.ne.0.) then
oli(ix,jy,1,n)=1./ol
else
......@@ -129,9 +160,16 @@ subroutine calcpar(n,uuh,vvh,pvh)
qvlev(i)=qvh(ix,jy,i,n)
end do
if (metdata_format.eq.GRIBFILE_CENTRE_NCEP) then
! NCEP version hmix has been read in in readwind.f, is therefore not calculated here
call richardson(ps(ix,jy,1,n),ustar(ix,jy,1,n),ttlev,qvlev, &
ulev,vlev,nuvz,akz,bkz,sshf(ix,jy,1,n),tt2(ix,jy,1,n), &
td2(ix,jy,1,n),hmix(ix,jy,1,n),wstar(ix,jy,1,n),hmixplus)
td2(ix,jy,1,n),hmixdummy,wstar(ix,jy,1,n),hmixplus,metdata_format)
else
call richardson(ps(ix,jy,1,n),ustar(ix,jy,1,n),ttlev,qvlev, &
ulev,vlev,nuvz,akz,bkz,sshf(ix,jy,1,n),tt2(ix,jy,1,n), &
td2(ix,jy,1,n),hmix(ix,jy,1,n),wstar(ix,jy,1,n),hmixplus,metdata_format)
end if
if(lsubgrid.eq.1) then
subsceff=min(excessoro(ix,jy),hmixplus)
......@@ -172,14 +210,19 @@ subroutine calcpar(n,uuh,vvh,pvh)
! Calculate height of thermal tropopause (Hoinka, 1997)
!******************************************************
! 1) Calculate altitudes of ECMWF model levels
!*********************************************
! 1) Calculate altitudes of model levels
!***************************************
tvold=tt2(ix,jy,1,n)*(1.+0.378*ew(td2(ix,jy,1,n))/ &
ps(ix,jy,1,n))
pold=ps(ix,jy,1,n)
zold=0.
do kz=2,nuvz
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
loop_start=2
else
loop_start=llev
end if
do kz=loop_start,nuvz
pint=akz(kz)+bkz(kz)*ps(ix,jy,1,n) ! pressure on model layers
tv=tth(ix,jy,kz,n)*(1.+0.608*qvh(ix,jy,kz,n))
......@@ -198,7 +241,13 @@ subroutine calcpar(n,uuh,vvh,pvh)
! to be identified as the tropopause
!************************************************************************
do kz=1,nuvz
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
loop_start=1
else
loop_start=llev
end if
do kz=loop_start,nuvz
if (zlev(kz).ge.altmin) then
kzmin=kz
goto 45
......
src/calcpar_nests.f90
View file @ 6ecb30a4
......@@ -19,7 +19,7 @@
! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. *
!**********************************************************************
subroutine calcpar_nests(n,uuhn,vvhn,pvhn)
subroutine calcpar_nests(n,uuhn,vvhn,pvhn,metdata_format)
! i i i o
!*****************************************************************************
! *
......@@ -38,12 +38,17 @@ subroutine calcpar_nests(n,uuhn,vvhn,pvhn)
! new variables in call to richardson *
! *
!*****************************************************************************
! Changes, Bernd C. Krueger, Feb. 2001:
! Variables tth and qvh (on eta coordinates) in common block
! Changes, Bernd C. Krueger, Feb. 2001: *
! Variables tth and qvh (on eta coordinates) in common block *
! *
! Unified ECMWF and GFS builds *
! Marian Harustak, 12.5.2017 *
! - Added passing of metdata_format as it was needed by called routines *
!*****************************************************************************
! *
! Variables: *
! n temporal index for meteorological fields (1 to 3) *
! metdata_format format of metdata (ecmwf/gfs) *
! *
! Constants: *
! *
......@@ -59,8 +64,9 @@ subroutine calcpar_nests(n,uuhn,vvhn,pvhn)
implicit none
integer :: metdata_format
integer :: n,ix,jy,i,l,kz,lz,kzmin
real :: ttlev(nuvzmax),qvlev(nuvzmax),obukhov,scalev,ol,hmixplus
real :: ttlev(nuvzmax),qvlev(nuvzmax),obukhov,scalev,ol,hmixplus,dummyakzllev
real :: ulev(nuvzmax),vlev(nuvzmax),ew,rh,vd(maxspec),subsceff,ylat
real :: altmin,tvold,pold,zold,pint,tv,zlev(nuvzmax)
real :: uuhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests)
......@@ -109,7 +115,7 @@ subroutine calcpar_nests(n,uuhn,vvhn,pvhn)
ol=obukhov(psn(ix,jy,1,n,l),tt2n(ix,jy,1,n,l), &
td2n(ix,jy,1,n,l),tthn(ix,jy,2,n,l),ustarn(ix,jy,1,n,l), &
sshfn(ix,jy,1,n,l),akm,bkm)
sshfn(ix,jy,1,n,l),akm,bkm,dummyakzllev,metdata_format)
if (ol.ne.0.) then
olin(ix,jy,1,n,l)=1./ol
else
......@@ -130,7 +136,7 @@ subroutine calcpar_nests(n,uuhn,vvhn,pvhn)
call richardson(psn(ix,jy,1,n,l),ustarn(ix,jy,1,n,l),ttlev, &
qvlev,ulev,vlev,nuvz,akz,bkz,sshfn(ix,jy,1,n,l), &
tt2n(ix,jy,1,n,l),td2n(ix,jy,1,n,l),hmixn(ix,jy,1,n,l), &
wstarn(ix,jy,1,n,l),hmixplus)
wstarn(ix,jy,1,n,l),hmixplus,metdata_format)
if(lsubgrid.eq.1) then
subsceff=min(excessoron(ix,jy,l),hmixplus)
......
src/convmix.f90
View file @ 6ecb30a4
......@@ -19,7 +19,7 @@
! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. *
!**********************************************************************
subroutine convmix(itime)
subroutine convmix(itime,metdata_format)
! i
!**************************************************************
!handles all the calculations related to convective mixing
......@@ -30,12 +30,23 @@ subroutine convmix(itime)
! convmix called every lsynctime seconds
!CHANGES by A. Stohl:
! various run-time optimizations - February 2005
! CHANGES by C. Forster, November 2005, NCEP GFS version
! in the ECMWF version convection is calculated on the
! original eta-levels
! in the GFS version convection is calculated on the
! FLEXPART levels
!
! Unified ECMWF and GFS builds
! Marian Harustak, 12.5.2017
! - Merged convmix and convmix_gfs into one routine using if-then
! for meteo-type dependent code
!**************************************************************
use flux_mod
use par_mod
use com_mod
use conv_mod
use class_gribfile
implicit none
......@@ -43,6 +54,7 @@ subroutine convmix(itime)
integer :: ipconv
integer :: jy, kpart, ktop, ngrid,kz
integer :: igrid(maxpart), ipoint(maxpart), igridn(maxpart,maxnests)
integer :: metdata_format
! itime [s] current time
! igrid(maxpart) horizontal grid position of each particle
......@@ -103,6 +115,7 @@ subroutine convmix(itime)
!**********************************************************
ngrid=0
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
do j=numbnests,1,-1
if ( x.gt.xln(j)+eps .and. x.lt.xrn(j)-eps .and. &
y.gt.yln(j)+eps .and. y.lt.yrn(j)-eps ) then
......@@ -110,6 +123,15 @@ subroutine convmix(itime)
goto 23
endif
end do
else
do j=numbnests,1,-1
if ( x.gt.xln(j) .and. x.lt.xrn(j) .and. &
y.gt.yln(j) .and. y.lt.yrn(j) ) then
ngrid=j
goto 23
endif
end do
endif
23 continue
! Determine nested grid coordinates
......@@ -166,15 +188,26 @@ subroutine convmix(itime)
tt2conv=(tt2(ix,jy,1,mind1)*dt2+tt2(ix,jy,1,mind2)*dt1)*dtt
td2conv=(td2(ix,jy,1,mind1)*dt2+td2(ix,jy,1,mind2)*dt1)*dtt
!!$ do kz=1,nconvlev+1 !old
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
do kz=1,nuvz-1 !bugfix
tconv(kz)=(tth(ix,jy,kz+1,mind1)*dt2+ &
tth(ix,jy,kz+1,mind2)*dt1)*dtt
qconv(kz)=(qvh(ix,jy,kz+1,mind1)*dt2+ &
qvh(ix,jy,kz+1,mind2)*dt1)*dtt
end do
else
do kz=1,nuvz-1 !bugfix
pconv(kz)=(pplev(ix,jy,kz,mind1)*dt2+ &
pplev(ix,jy,kz,mind2)*dt1)*dtt
tconv(kz)=(tt(ix,jy,kz,mind1)*dt2+ &
tt(ix,jy,kz,mind2)*dt1)*dtt
qconv(kz)=(qv(ix,jy,kz,mind1)*dt2+ &
qv(ix,jy,kz,mind2)*dt1)*dtt
end do
end if
! Calculate translocation matrix
call calcmatrix(lconv,delt,cbaseflux(ix,jy))
call calcmatrix(lconv,delt,cbaseflux(ix,jy),metdata_format)
igrold = igr
ktop = 0
endif
......@@ -251,7 +284,7 @@ subroutine convmix(itime)
! calculate translocation matrix
!*******************************
call calcmatrix(lconv,delt,cbasefluxn(ix,jy,inest))
call calcmatrix(lconv,delt,cbasefluxn(ix,jy,inest),metdata_format)
igrold = igr
ktop = 0
endif
......
src/getfields.f90
View file @ 6ecb30a4
......@@ -19,7 +19,7 @@
! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. *
!**********************************************************************
subroutine getfields(itime,nstop)
subroutine getfields(itime,nstop,metdata_format)
! i o
!*****************************************************************************
! *
......@@ -37,9 +37,13 @@ subroutine getfields(itime,nstop)
! 29 April 1994 *
! *
!*****************************************************************************
! Changes, Bernd C. Krueger, Feb. 2001:
! Variables tth,qvh,tthn,qvhn (on eta coordinates) in common block.
! Function of nstop extended.
! Changes, Bernd C. Krueger, Feb. 2001: *
! Variables tth,qvh,tthn,qvhn (on eta coordinates) in common block. *
! Function of nstop extended. *
! *
! Unified ECMWF and GFS builds *
! Marian Harustak, 12.5.2017 *
! - Added passing of metdata_format as it was needed by called routines *
!*****************************************************************************
! *
! Variables: *
......@@ -57,6 +61,7 @@ subroutine getfields(itime,nstop)
! ww(0:nxmax,0:nymax,nwzmax,2) wind components in z-direction [deltaeta/s]*
! tt(0:nxmax,0:nymax,nuvzmax,2) temperature [K] *
! ps(0:nxmax,0:nymax,2) surface pressure [Pa] *
! metdata_format format of metdata (ecmwf/gfs) *
! *
! Constants: *
! idiffmax maximum allowable time difference between 2 wind *
......@@ -66,10 +71,12 @@ subroutine getfields(itime,nstop)
use par_mod
use com_mod
use class_gribfile
implicit none
integer :: indj,itime,nstop,memaux
integer :: metdata_format
real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax)
real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax)
......@@ -124,11 +131,19 @@ subroutine getfields(itime,nstop)
do indj=indmin,numbwf-1
if (ldirect*wftime(indj+1).gt.ldirect*itime) then
call readwind(indj+1,memind(2),uuh,vvh,wwh)
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
call readwind_ecmwf(indj+1,memind(2),uuh,vvh,wwh)
else
call readwind_gfs(indj+1,memind(2),uuh,vvh,wwh)
end if
call readwind_nests(indj+1,memind(2),uuhn,vvhn,wwhn)
call calcpar(memind(2),uuh,vvh,pvh)
call calcpar_nests(memind(2),uuhn,vvhn,pvhn)
call verttransform(memind(2),uuh,vvh,wwh,pvh)
call calcpar(memind(2),uuh,vvh,pvh,metdata_format)
call calcpar_nests(memind(2),uuhn,vvhn,pvhn,metdata_format)
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
call verttransform_ecmwf(memind(2),uuh,vvh,wwh,pvh)
else
call verttransform_gfs(memind(2),uuh,vvh,wwh,pvh)
end if
call verttransform_nests(memind(2),uuhn,vvhn,wwhn,pvhn)
memtime(2)=wftime(indj+1)
nstop = 1
......@@ -151,19 +166,35 @@ subroutine getfields(itime,nstop)
if ((ldirect*wftime(indj).le.ldirect*itime).and. &
(ldirect*wftime(indj+1).gt.ldirect*itime)) then
memind(1)=1
call readwind(indj,memind(1),uuh,vvh,wwh)
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
call readwind_ecmwf(indj,memind(1),uuh,vvh,wwh)
else
call readwind_gfs(indj,memind(1),uuh,vvh,wwh)
end if
call readwind_nests(indj,memind(1),uuhn,vvhn,wwhn)
call calcpar(memind(1),uuh,vvh,pvh)
call calcpar_nests(memind(1),uuhn,vvhn,pvhn)
call verttransform(memind(1),uuh,vvh,wwh,pvh)
call calcpar(memind(1),uuh,vvh,pvh,metdata_format)
call calcpar_nests(memind(1),uuhn,vvhn,pvhn,metdata_format)
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
call verttransform_ecmwf(memind(1),uuh,vvh,wwh,pvh)
else
call verttransform_gfs(memind(1),uuh,vvh,wwh,pvh)
end if
call verttransform_nests(memind(1),uuhn,vvhn,wwhn,pvhn)
memtime(1)=wftime(indj)
memind(2)=2
call readwind(indj+1,memind(2),uuh,vvh,wwh)
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then
call readwind_ecmwf(indj+1,memind(2),uuh,vvh,wwh)
else
call readwind_gfs(indj+1,memind(2),uuh,vvh,wwh)
end if
call readwind_nests(indj+1,memind(2),uuhn,vvhn,wwhn)
call calcpar(memind(2),uuh,vvh,pvh)
call calcpar_nests(memind(2),uuhn,vvhn,pvhn)
call verttransform(memind(2),uuh,vvh,wwh,pvh)
call calcpar(memind(2),uuh,vvh,pvh,metdata_format)
call calcpar_nests(memind(2),uuhn,vvhn,pvhn,metdata_format)
if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then