CDO

New features:

• Ruby and Python bindings now use the same keys to define input and output streams
• New option force to suppress reprocessing existing output files
• New option returnArray for return a numpy/narray for a given variable name

Please have look at the updated documentation at cdo.{rb,py}

• Added support for netCDF4(HDF5) formatted SCRIP grid description files
• added CDO option -L to lock all I/O calls. This option is neccessary if external I/O libraries like netCDF4 (HDF5) were installed without thread-safe support.

• setunit: Set variable unit
• chunit: Change variable unit

• Info: changed output format
• Sinfo: changed output format
• Diff: changed output format

• remaplaf: fixed bug in binary_search_int()
• eca_rr1: result has wrong long name attribute

• Wrong results with the following statistical functions: * mean, *avg, *sum, *var, *std
  only if all of the following conditions are complied:
  - x86_64 machine (tornado, squall, thunder, lizard)
  - dataset has no missing values
  - the horizontal grid size is > 1 and not multiple of 8
  This bug was introduced in CDO version 1.5.6.

• Runstat: OpenMP parallelization over parameter nts
• import_binary: added support for 64-bit floats via extra OPTION keyword flt64

• Arith: added support for 3D masks
• mastrfu: use grid coordinates from input file

• ymonsub: added support for time bounds
• Wrong netCDF output for unscaled uint8, int8, int16, int32 variables [Bug #2516]

In order to make the latest features available to users, a new release will be offered: cdo-current.

• There will be no support or maintenance for this release. We try to keep it stable, but it will not be tested like the official one.
• cdo-current will be released for new features or bug-fixes but not every night.
• It is a source-only release, pre-compiled binaries will not be offered.

Tar balls can be downloaded as usual from the download page

• yhouradd, yhoursub, yhourmul, yhourdiv: Multi-year hourly arithmetic

• ECA operators: wrong result if missing value is not the default missing value (-9e33)
• ml2pl: added support for GRIB2 parameter names
• replace: removed debug output

Changed from old pycdf to more recent scipy.io.netcdf for returning numpy arrays (suggested by Alastair McKinstry).

See cdo.{rb,py}

Both versions now work with the win32 version of CDO and interfaces have converged a bit more.

See cdo.{rb,py} for installation instructions.

Updated libraries:

• netcdf-4.2
• hdf5-1.8.8
• grib_api-1.9.16
• proj4-4.8.0

The default unix installation now includes grib_api.

• setgridtype: added parameter lonlat to convert curvilinear to regular lon/lat grids
• remapcon: added env REMAP_AREA_MIN, to set the minimum area fraction

• timcovar: covariance over time
• fldcovar: covariance in grid space

• splitsel: added support for constant fields [Bug #1701]
• combination of selection commands (e.g. selmon -selyear) do not terminate, if no result found [Bug #1640]