program field2data
use mod_plot ! HYCOM plot array interface
use mod_za ! HYCOM array I/O interface
c
c --- hycom 2-d field extractor
c
real, allocatable, dimension (:,:) ::
& work
c
common/conrng/ amn,amx
c
character flnm*240,frmt*80,cline*240
character cf_title*80,cf_units*80,
& cf_lname*80,cf_sname*80
logical lperiod
c
logical lhycom,ltheta
integer artype,iexpt,yrflag
double precision time3(3)
c
real, parameter :: spval = 2.0**100
c
character blank*40
data blank/' '/
c
call xcspmd
call zaiost
lp=6
c
c --- read model data
c --- 'flnm ' = name of file containing the actual data
c --- 'frmt ' = output format or type (HYCOM, BINARY, netCDF)
c --- see horout for more details on frmt
c --- all output on horout "unit" 21.
c --- 'iexpt ' = experiment number x10 (000=no expt number)
c --- 'idm ' = longitudinal array size
c --- 'jdm ' = latitudinal array size
read (*,'(a)') flnm
write (lp,'(2a)') ' input file: ',trim(flnm)
call flush(lp)
read (*,'(a)') frmt
write (lp,'(2a)') 'output type: ',trim(frmt)
call flush(lp)
call blkini(iexpt, 'iexpt ')
call blkini(ii, 'idm ')
call blkini(jj, 'jdm ')
call flush(lp)
if (ii.ne.idm .or. jj.ne.jdm) then
write(lp,*)
write(lp,*) 'error - wrong idm or jdm (should be:',
& idm,jdm,')'
write(lp,*)
call flush(lp)
stop
endif
c
c --- 'iorign' = i-origin of sampled subregion
c --- 'jorign' = j-origin of sampled subregion
c --- 'idmp ' = i-extent of sampled subregion (<=idm; 0 implies idm)
c --- 'jdmp ' = j-extent of sampled subregion (<=jdm; 0 implies jdm)
call blkini(iorign,'iorign')
call blkini(jorign,'jorign')
call blkini(ii, 'idmp ')
call blkini(jj, 'jdmp ')
call flush(lp)
if (ii.eq.0) then
ii=idm
endif
if (jj.eq.0) then
jj=jdm
endif
c --- 'iorign,jorign' denote the origin of the subgrid to be extracted
c --- from the full grid (dimensioned idm x jdm).
c --- The size of the subgrid is determined by ii,jj.
write (lp,'(2(a,i5),9x,2(a,i5))') 'extracting i =',iorign,
& ' ...',iorign+ii-1,'j =',jorign,' ...',jorign+jj-1
call flush(lp)
c
c --- array allocation
c
call plot_alloc_field
c
allocate( work(idm,jdm) )
c
c
c --- read the basin depth file, form the land/sea masks.
c
dpthfil = 'regional.depth'
call getdepth(work)
do j= 1,jj
do i= 1,ii
if (depths(i,j).gt.0.0) then
ip(i,j) = 1
else
ip(i,j) = 0
endif
enddo
enddo
c
write(lp,'(/a,2f8.2/a,2f8.2)')
& 'sub-domain longitude range = ',
& minval(plon(:,:)),maxval(plon(:,:)),
& 'sub-domain latitude range = ',
& minval(plat(:,:)),maxval(plat(:,:))
c
lperiod = ii.eq.idm .and.
& maxval(plon(:,:))-minval(plon(:,:)) .gt. 350.0
if (lperiod) then
write(lp,'(/a/)') 'sub-domain assumed to be periodic'
else
write(lp,'(/a/)') 'sub-domain assumed to be non-periodic'
endif
call flush(lp)
c
c --- 'yrflag' = days in year flag (0=360J16,1=366J16,2=366J01,3=actual)
c --- 'time ' = model day
call blkini(yrflag,'yrflag')
call blkind(time3(1),'time ','("blkind: ",a6," =",f12.4)')
time3(2) = time3(1)
time3(3) = time3(1)
c
c --- ----------------------------
c --- loop through selected fields
c --- ----------------------------
c
call zaiopf(flnm, 'old', 14)
c
nold = 0
do
c --- 'nrec ' or 'yrflag'
call blkini2(ioin,i, 'yrflag','nrec ') !read yrflag or nrec
if (i.eq.1) then
c --- 'yrflag' = days in year flag (0=360J16,1=366J16,2=366J01,3=actual)
c --- 'time ' = model day
yrflag = ioin
call blkind(time3(1),'time ','("blkind: ",a6," =",f12.4)')
time3(2) = time3(1)
time3(3) = time3(1)
cycle
else
c --- 'nrec ' = next record to plot (arbitrary order, <0 to end)
nrec = ioin
endif
if (nrec.lt.0) then
exit ! end of plots
endif
if (nrec.le.nold) then !reset to start of file
call zaiorw(14)
nold = 0
endif
do nr= nold+1,nrec-1
call zaiosk(14)
enddo
call zaiord( work,ip,.false., amn,amx, 14)
call extrct_p(work,idm,jdm,iorign,jorign,
& field,ii,jj)
nold = nrec
c
c --- one name line per feild: 8-letter plot and units, field, standard_
c --- or separated by "|" (i.e. plot|units|field|standard).
c --- the field name must only contain alphanumerics and "_", and
c --- the standard_name is either blank or from the CF conventions
read(*,'(a)') cline
i = index(cline,'|')
if (i.eq.0) then !8-letter plot and units, field has no spaces
cf_title = cline(1:8)
cf_units = cline(9:16)
cline = cline(17:)
do
i = index(cline,' ')
if (i.ne.1) then
exit
endif
cline = cline(2:) !remove a leading space
enddo
cf_lname = cline(1:i-1)
cf_sname = cline(i+1:)
else !separated by "|"
cf_title = cline(1:i-1)
cline = cline(i+1:)
i = index(cline,'|')
cf_units = cline(1:i-1)
cline = cline(i+1:)
i = index(cline,'|')
cf_lname = cline(1:i-1)
cf_sname = cline(i+1:)
endif
write (lp,'(2x,3a)')
& ' title = "',trim(cf_title),'"',
& ' units = "',trim(cf_units),'"',
& ' l.name = "',trim(cf_lname),'"',
& ' s.name = "',trim(cf_sname),'"'
call flush(lp)
if ( index(cf_lname,' ').ne.0 .and.
& index(cf_lname,' ').le.
& len_trim(cf_lname) ) then
! does not catch all illegal l.names.
write(lp,*)
write(lp,*) 'error - l.name contains spaces'
write(lp,*)
call flush(lp)
stop
elseif ( index(cf_lname,'-').ne.0) then
! still does not catch all illegal l.names.
write(lp,*)
write(lp,*) 'error - l.name contains "-"'
write(lp,*)
call flush(lp)
stop
endif !l.name check
c
c --- 'qscale' = scale factor for plot
call blkinr(qscale,'qscale','("blkinr: ",a6," =",1pe12.3)')
c
c --- check that bathymetry is consistent with this field.
c
ibadl = 0
ibads = 0
do j= 1,jj
do i= 1,ii
if (ip(i,j).eq.1) then
if (field(i,j).lt.0.5*spval) then
field(i,j) = qscale*field(i,j)
else
field(i,j) = spval
ibads = ibads + 1 ! topo sea, field land (data void)
* if (mod(ibads,100).eq.1) then
* write(lp,*) 'topo sea, field land at i,j = ',i,j
* endif
endif
else
field(i,j) = spval
if (field(i,j).lt.0.5*spval) then
ibadl = ibadl + 1 ! topo land, field sea
* if (mod(ibadl,100).eq.1) then
* write(lp,*) 'topo land, field sea at i,j = ',i,j
* & ,field(i,j)
* endif
endif
endif
enddo !i
enddo !j
if (ibads.ne.0) then
write(lp,*)
* write(lp,*) 'error - wrong bathymetry for this file'
write(lp,*) 'warning - wrong bathymetry for this file'
write(lp,*) 'number of topo sea mismatches = ',ibads
write(lp,*) 'number of topo land mismatches = ',ibadl
write(lp,*)
call flush(lp)
* stop
endif
if (ibadl.ne.0) then
write(lp,*)
* write(lp,*) 'error - wrong bathymetry for this file'
write(lp,*) 'warning - wrong bathymetry for this file'
write(lp,*) 'number of topo sea mismatches = ',ibads
write(lp,*) 'number of topo land mismatches = ',ibadl
write(lp,*)
call flush(lp)
* stop
endif
c
c --- ------------------------
c --- output non-layered field
c --- ------------------------
c
k = -1
ioin = 21
artype = 1
lhycom = .true.
ltheta = .false.
call horout(field,artype,yrflag,time3,iexpt,lhycom,
& trim(cf_title), ! plot name
& trim(cf_lname), ! ncdf name
& trim(cf_sname), ! ncdf standard_name
& trim(cf_units), ! units
& k,ltheta, frmt,ioin)
enddo !input loop
c
stop '(normal)'
end