NCO installations at NSC


Directory list:

VersionDescription
4.2.0 NCO verson 4.2.0

Level of support

Tier 2 NSC has only limited experience with this software, but we will try to help as much as possible. We have ran some tests, for example, if the program comes with a test suite, but they may be far from exhaustive. We will try to install and test new versions, as soon as we can.

Please see the page describing our software support categories for more information.
You can also contact support@nsc.liu.se for further information.

NCO manipulates data stored in netCDF-accessible formats, including HDF4 and HDF5. It also exploits the geophysical expressivity of many CF (Climate & Forecast) metadata conventions, the flexible description of physical dimensions translated by UDUnits, the network transparency of OPeNDAP, the storage features (e.g., compression, chunking, groups) of HDF (the Hierarchical Data Format), and many powerful mathematical and statistical algorithms of GSL (the GNU Scientific Library). The NCO installations at NSC are generally supported by Hamish Struthers (struthers@nsc.liu.se). See the NCO webpages for detailed documentation.

How to run

Load the NCO module corresponding to the version you want to use, e.g

module load nco/4.2

This will add the NCO commands to your search path. NCO operators:

ncap
ncap2
ncatted
ncbo
ncdiff
ncea
ncecat
ncflint
ncks
ncpdq
ncra
ncrcat
ncrename
ncwa

Please try not run NCO on the login node! To run NCO interactively, allocate a compute node for interactive use and then run nco operations. E.g average five files (85.nc, 86.nc, 87.nc, 88.nc, 89.nc) over the record dimension:

interactive -N1 --exclusive -t 00:30:00
module load nco/4.2
ncra 85.nc 86.nc 87.nc 88.nc 89.nc 8589.nc