Version 2.30 needed soon due to ECMWF changes

Asked by Diego Remolina

Can the 2.30 version of the package be created and made available for all currently supported versions of Ubuntu? The company is forcing everyone to upgrade to handle CCSDS compressed fields (see below the company's official post)

While by default all 48r1 gridded GRIB2 data will be disseminated using a CCSDS defined compression method (Data representation template 5.42), MARS will by default write gridded GRIB2 data in CCSDS only if derived from (gridded) CCSDS-packed GRIB2 fields. See below how to override the default behaviour.

ecCodes, our encoding/decoding package, uses libaec (Adaptive Entropy Coding Library) which implements a Golomb-Rice coding as defined in the CCSDS recommended standard 121.0-B-3.

Users are strongly advised to test that their software applications and data processing chain can handle this new compression method.

To handle CCSDS compressed fields from 48r1 with ecCodes, version 2.30.0 or newer is recommended.

For a discussion of available GRIB packing methods and the use of compression algorithms see the Technical Memo Impact of GRIB compression on weather forecast data and data-handling applications.

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Manfred Hampl (m-hampl) said :

Manfred Hampl suggests this article as an answer to your question:
FAQ #3037: “no rolling release”.

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Manfred Hampl (m-hampl) said :

If you deem it necessary to upgrade the versions in Ubuntu, then please create a bug report to request a SRU (see the FAQ linked above for details).

Remark: Ubuntu is copying packages from Debian (to avoid double packaging work), and Debian has packaged version 2.30 only in its "experimental" release, see

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Bernard Stafford (bernard010) said :

Not at this time Debian has the 2.30 version as an experimental package
Ubuntu copies files from Debian to avoid duplicate packages.
Thus it will not be available for the next release.
See FAQ above for more information.

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