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NF90_INQUIRE_VARIABLE returns information about a netCDF variable given its ID. Information about a variable includes its name, type, number of dimensions, a list of dimension IDs describing the shape of the variable, and the number of variable attributes that have been assigned to the variable.
function nf90_inquire_variable(ncid, varid, name, xtype, ndims, dimids, nAtts) integer, intent( in) :: ncid, varid character (len = *), optional, intent(out) :: name integer, optional, intent(out) :: xtype, ndims integer, dimension(*), optional, intent(out) :: dimids integer, optional, intent(out) :: nAtts integer :: nf90_inquire_variable
ncid
varid
name
xtype
ndims
dimids
nAtts
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_VAR 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)