...

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• ecCodes, the heart of GRIB and BUFR handling, brings performance improvements, new parameters, contributions from users and several smaller features/bug fixes including support for the Mercator projection. Please note that ecCodes' Python 2 interface is no longer being developed. Users are strongly advised to migrate to Python 3.
• Magics, ECMWF's plotting library, adds some smaller fixes and additional improvements including :
  • combined with the latest ecCodes, Magics brings plotting support, including interactive Cursor Data, for GRIBs encoded with various projections such as Mercator and Lambert variants.
    Image Modified   Image Modified        Image Modified
  • a major code clean-up has reduced the number of dependencies. The Boost library and Python are not required to install Magics anymore.
  • fix issue with logging that was degrading observation plotting speed when used from Python
  • fix issue in python when passing single element array.
• Metview, ECMWF's interactive and batch software for manipulation and plotting of data, brings several new features and functions, such as:
  • much improved speed of plotting in-memory arrays of data using the Input Visualiser thanks to allowing vectors (Macro language) or numpy arrays (Python) to be used as data
  • the last two modules that were originally implemented in Fortran (Spectra and Potential Temperature) have been converted to C++, meaning they will be available to more users
  • fixes for macOS
  • new Gallery examples
  • a new regridding module that exposes many new interpolation methods for expert users
  • user interface improvements such as a new preview panel that allows quick inspection of icons
  • the long-awaited ability to filter for parameters in the icon editors makes its way into this release
  • a whole raft of new Python/Macro functions for thermodynamic computations and plotting utilities
  • more - see the release notes!

    Image Modified

    Metview's new Regrid module brings new possibilities in gridding and transformation of data

• CodesUI, the standalone combination of Metview's GRIB and BUFR examiners, added syntax highlighting for textual GRIB dumps and fixed an issue where the BUFR filter could unexpectedly crash.

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This table summarises the changes in the version of the different packages:

Please see the Release notes for full details of the changes implemented in each package.

Caveats

ecCodes 2.19 and Snow Depth Parameter (141)

ParameterNumber for Snow Depth (141) is now 254 instead of 11 when encoding in GRIB2 format.

The GRIB edition 2 for 141 encoding was wrong in previous versions of ecCodes: The parameterNumber should be 60, not 11 because 11 is the physical depth not the one converted to water volume.

In older versions, both paramIds 141 and 3066 shared the same GRIB2 representation and the consequence of that was 141 was obfuscated by 3066 (water converted depth is obfuscated but the true physical depth!)

From ecCodes 2.19 onwards, this parameter uses local GRIB2 encoding in ECMWF local table 1:

discipline = 0;
parameterCategory = 1;
parameterNumber = 254;
localTablesVersion = 1 ;