Warning

Iceberg reaches end-of-life on 30th November 2020. If you are running jobs on Iceberg then you need to take urgent action to ensure that your jobs/scripts will run on ShARC or Bessemer. If you have never used ShARC or Bessemer then now is the time to test your scripts. Not all software on Iceberg is available on ShARC/Bessemer.

CDO¶

CDO is a collection of command line Operators to manipulate and analyse Climate and NWP model Data. Supported data formats are GRIB 1/2, netCDF 3/4, SERVICE, EXTRA and IEG. There are more than 600 operators available.

Interactive Usage¶

After connecting to Iceberg (see Establishing a SSH connection), start an interactive session with the qsh or qrsh command.

To add the cdo command to the system PATH, execute the following command

module load apps/gcc/5.3/cdo/1.7.2

Documentation¶

The CDO manual is available online at https://code.zmaw.de/projects/cdo/embedded/index.html

Installation notes¶

Installation

(1) Download the latest current version:

    wget https://code.zmaw.de/attachments/download/12350/cdo-current.tar.gz

(2) Extract the files into a working directory  ( I have used /data/te1st/2016/cdo ) :

    gunzip cdo-current.tar.gz
    tar -xvf cdo-current.tar

(3) Install the program  ( I have used /usr/local/extras/CDO ):

    module load compilers/gcc/5.3
    ./configure  --prefix=/usr/local/extras/CDO --with-netcdf=/usr/local/extras/netcdf/4.3.2
    make install

Modulefile¶

The module file is on the system at /usr/local/modulefiles/apps/gcc/5.3/cdo

Its contents are

#%Module1.0#####################################################################
##
## CDO Climate Data Operators Module file.
##

## Module file logging
source /usr/local/etc/module_logging.tcl
##

proc ModulesHelp { } {
       puts stderr "Makes Climate Data Operator $version available"
 }

set version 1.7.2
set BIN_DIR /usr/local/extras/CDO/$version

module-whatis   "Makes CDO (Climate Data Operators) $version available"

prepend-path PATH $BIN_DIR/bin