Given the name of a varaible, nf90_inq_varid finds the variable ID.
function nf90_inq_varid(ncid, name, varid) integer, intent(in) :: ncid character (len = *), intent( in) :: name integer, intent(out) :: varid integer :: nf90_inq_varid
ncid
name
varid
These functions return the value NF90_NOERR if no errors occurred. Otherwise, the returned status indicates an error. Possible causes of errors include:
Here is an example using NF90_INQ_VARID to find out about a variable named rh in an existing netCDF dataset named foo.nc:
use netcdf implicit none integer :: status, ncid, & RhVarId & numDims, numAtts integer, dimension(nf90_max_var_dims) :: rhDimIds ... status = nf90_open("foo.nc", nf90_NoWrite, ncid) if(status /= nf90_NoErr) call handle_error(status) ... status = nf90_inq_varid(ncid, "rh", RhVarId) if(status /= nf90_NoErr) call handle_err(status) status = nf90_inquire_variable(ncid, RhVarId, ndims = numDims, natts = numAtts) if(status /= nf90_NoErr) call handle_err(status) status = nf90_inquire_variable(ncid, RhVarId, dimids = rhDimIds(:numDims)) if(status /= nf90_NoErr) call handle_err(status)