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Titel |
MyOcean Central Information System - Achievements and Perspectives |
VerfasserIn |
Vincent Claverie, Thomas Loubrieu, Tony Jolibois, Rémi de Dianous, Jon Blower, Laia Romero, Guy Griffiths |
Konferenz |
EGU General Assembly 2013
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Medientyp |
Artikel
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Sprache |
Englisch
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Digitales Dokument |
PDF |
Erschienen |
In: GRA - Volume 15 (2013) |
Datensatznummer |
250080282
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Zusammenfassung |
Since 2009, MyOcean (http://www.myocean.eu) is providing an operational service, for
forecasts, analysis and expertise on ocean currents, temperature, salinity, sea level, primary
ecosystems and ice coverage.
The production of observation and forecasting data is done by 42 Production Units (PU).
Product download and visualisation are hosted by 25 Dissemination Units (DU). All these
products and associated services are gathered in a single catalogue hiding the intricate
distributed organization of PUs and DUs.
Besides applying INSPIRE directive and OGC recommendations, MyOcean overcomes
technical choices and challenges. This presentation focuses on 3 specific issues met by
MyOcean and relevant for many Spatial Data Infrastructures: user’s transaction accounting,
large volume download and stream line the catalogue maintenance.
Transaction Accounting: Set up powerful means to get detailed knowledge of system
usage in order to subsequently improve the products (ocean observations, analysis and
forecast dataset) and services (view, download) offer. This subject drives the following
ones:
Central authentication management for the distributed web services
implementations: add-on to THREDDS Data Server for WMS and
NETCDF sub-setting service, specific FTP.
Share user management with co-funding projects. In addition to MyOcean,
alternate projects also need consolidated information about the use of the
cofunded products.
Provide a central facility for the user management. This central facility
provides users’ rights to geographically distributed services and gathers
transaction accounting history from these distributed services.
Propose a user-friendly web interface to download large volume of data (several
GigaBytes) as robust as basic FTP but intuitive and file/directory independent. This
should rely on a web service drafting the INSPIRE to-be specification and OGC
recommendations for download taking into account that FTP server is not enough
friendly (need to know filenames, directories) and Web-page not allowing downloading
several files.
Streamline the maintenance of the central catalogue. The major update for MyOcean
v3 (April 2013) is the usage of Geonetwork for catalogue management. This improves
the system at different levels :
The editing interface is more user-friendly and the catalogue updates are
managed in a workflow. This workflow allows higher flexibility for minor
updates without giving up the high level qualification requirements for the
catalogue content.
The distributed web services (download, view) are automatically harvested
from the THREDDS Data Server. Thus the manual editing on the catalogue
is reduced, the associated typos are avoided and the quality of information
is finally improved. |
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