Abstract
In the frame of the Europlanet-RI-2020 program, the VESPA (Virtual
European Solar and Planetary Access) team has developed a metadata
dictionary dedicated to data discovery in solar system sciences. The
dictionary is called EPNcore and includes metadata for data coverage
(temporal, spatial, spectral…), data content (target, measured
parameter…), data origin (instrument, publisher…) and data
access (format, URL…). In order to interoperate with the
NASA/PDS4, the main archive information model in planetary sciences, it
is first necessary to implement the EPNcore dictionary into the PDS4
information model. This is done with setting up a Local Data Dictionary
(LDD). The second step deals with the mapping between terms already
defined in the PDS4 information model and the EPNcore dictionary. We
present the EPNcore LDD and a first version of the term mapping, as well
as a prototype interface to query PDS4 from the VESPA portal. The
Europlanet H2020 Research Infrastructure project has received funding
from the European Union’s Horizon 2020 research and innovation programme
under grant agreement No 654208.