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SAFE 2.x Basic Information
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Welcome to the SAFE Website!

SAFE, the Standard Archive Format for Europe, is designed to act as a standard format for archiving and conveying Earth observation data within the European Space Agency (ESA) archiving facilities and, potentially, within the archiving facilities of cooperating agencies.

SAFE benefits from experiences gathered during developments of several existing archiving standards and copes with the major constraints defined (in the OAIS-RM, see next paragraph) for the packaging and long term preservation of Earth Observation data.

SAFE has been designed to be used in an archive system compliant with the Open Archival Information System (OAIS) standard. Therefore, the OAIS reference model is a major input to its design. In fact, SAFE provides features that facilitate the archive compliance with OAIS and at the same time ensures that this compliance is not hampered by it.

One of the SAFE features originating from the OAIS Reference Model is the essential use of the XFDU packaging format. XFDU is a CCSDS standard that provides a set of predefined metadata categories and classifications that are fully compliant with the OAIS reference model. The departure from the XFDU packaging standard has been minimised, considering that the goal of XFDU is to provide a standard format for archiving and conveying scientific data.

The metadata model defined by the OGC Earth Observation Metadata Profile of Observations & Measurements (OGC EOP O&M) has been adopted as the reference metadata profile in SAFE 2.x to describe specific missions' EO Products. This metadata profile allows for a better exploitation of the SAFE format in any interoperability framework using standardisation.

Note: The old SAFE website (SAFE version 1.3) is available here.


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