Mobile equipement data (Elements 1-2-3-4) :
MARMOR will allocate approximately 7.5% of the overall budget of elements 1-2-3-4 to the Information System, based on the model already in use for the diffusion and sharing of terrestrial data collected by the RESIF-EPOS instrumental pool.
The Information System will develop marine IT node-A and node-B, that will be hosted under RESIF-EPOS Marine Specific Action and dedicated to the collection of marine geodetic and seismological data, to their formatting and validation according to international standards (e.g. FDSN, Orpheus, EPOS).
Mayotte cabled observatory data (Element 5) :
Information System tasks and issues will be handled by funding from REVOSIMA, the EMSO partnership, Ifremer, and collaboration with the IPGP Data center.
DAS data distribution
The data volumes from DAS optic fiber technologies are one or two orders of magnitude larger than those presently managed by RESIF-EPOS. While storage space and adapted servers are manageable, the data management and transport (integration and export), fibreoptic data require a set of relevant data products (short time windows with data from earthquakes; subsampled datasets in time and space, …), using off-line data distribution tools (rsync, batch requests, …) rather than the present webservices. With funds from MARMOR, observatoire de la Côte d’Azur (OCA) will address the issue, based on the data from the Monaco-Savone cable.
The data distribution will consequently be carried out in three phases :
- Phase 1: planned for three years, algorithms will be tested to identify the most adequate data products and associated formats and metadata.
- Phase 2: will create prototype services (integration and export tools, extension of metadata management, …), and make the key decisions for production phase, that is, defining the technical architecture (formats, procedures, number of service centres, technical links to the data distribution node) and the management architecture , i.e. how the data is formally linked to the RESIF information system as a whole, i.e. including GNSS and seismological data.
- Phase 3: the operational phase, planned from year 5 and onwards beyond the project’s duration, will routinely integrate all the datasets for distribution, following the standard practice from each community.