Re: [netcdfgroup] How to write global attribute with nf90_put_att

• To: brick <brickflying@xxxxxxxxx>
• Subject: Re: [netcdfgroup] How to write global attribute with nf90_put_att
• From: Russ Rew <russ@xxxxxxxxxxxxxxxx>
• Date: Wed, 24 Feb 2010 12:31:35 -0700

Hi,

> I want to write some global attributes into a netcdf file. The type of those
> attributes are different, such as character, integer, real, double
> presicion.
> How can I write those with
>  nf90_put_att(ncid, varid, name, values)
> Is varid set as nf90_global, name set as attributes' name?

Yes, for a global attribute (or a group attribute for netCDF-4 data) 
use NF90_GLOBAL as the variable ID.

> And how to set values to different type?

The Fortran-90 interface uses overloading, so the single function
nf90_put_att serves the purpose of multiple functions with different
parameter types.  If you call it with a character string value, it will
create an attribute that is a one-dimensional array of NF90_CHAR type.
If you call it with a double precision value, it creates an attribute of
type NF90_DOUBLE.

--Russ

• References:
  • [netcdfgroup] How to write global attribute with nf90_put_att
    • From: brick