Before answering, a suggestion for new users...
(1) Download the Language and Graphics Mini-Reference Manuals (pdf).
http://www.cgd.ucar.edu/csm/support/NCL/mini-refman.shtml
http://www.cgd.ucar.edu/csm/support/CSM_Graphics/graphics_man.shtml
Here at NCAR we print these on color printers in duplex mode.
Black-and-white is also fine. It just looks nicer in color.
(2) Become familiar with: http://www.cgd.ucar.edu/csm/support/
(3) Step-by-step tutorial (Examples section):
http://ngwww.ucar.edu/ngdoc/ng/ug/ncl/gsun/
============================
Yes, NCL can do that.
Note: NCL handles HDF's Scientific Data Set (SDS) *only*.
Since NCL can read HDF-SDS there is no need
to create netCDF. However, if you must create a netCDF file,
the crudest/slowest way is:
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
begin
fili = "input.hdf"
filo = "output.nc"
hdf = addfile (fili, "r")
system ("/bin/rm "+filo)
ncf = addfile (filo, "c")
copy_VarAtts(hdf, ncf) ; copy file attributes
vnames = getfilevarnames(hdf) ; all variables on hdf
nvar = dimsizes(vnames)
print (vnames)
do i=0,nvar-1 ; this could be SLOW
ncf->$vnames(i)$ = hdf->$vnames(i)$
end do
end
The above could be modified to select only a subset of variables.
>
>Hello,
>
>I would like to convert a HDF file to NCDF format. I just installed NCL
>but I an not really usual with it. Could you eventually indicate how to
>proceed?
>
>Thank you very much,
>
>Vincent
>
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