Spatial Data Infrastructure for Marine Environnement by L0vl6c

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									          Spatial Data Infrastructure for Marine Environnement
                Ifremer initiatives in France and in Europe
      E. Quimbert, G. Maudire, M. Bellouis, M. Treguer, SeaDataNet Consortium
                               Ifremer, Brest, France


Access to ocean and marine data is a major issue both for marine related researches and
for marine environment management and spatial planning in application of Water
Framework Directive (WFD) and Marine Strategy Framework Directive (MSFD).
However, marine observation is still difficult and expensive and, consequently,
observation activities must be engaged by several organizations in all European Coastal
States.

Ifremer contribute to (or coordinator of) several European projects dealing with ocean
observations and data management such as Argo, Seadatanet, Geoseas, Emodnet, etc.
Ifremer has also developed strong relationships with international organisation such as
IOC. Underwater technologies, biodiversity, fisheries science and aquaculture, coastal
environment, mineral resources, biotechnologies and operational oceanography are all
part of its research missions and fields of skill and excellence.
In addition it has to implement a national and European strategy for marine databases.

In the framework of these initiatives, advances have been achieved both in the national
and transnational cooperation: data policies, share of environmental data and also in the
technical implementation of distributed spatial data systems (metadata management,
portal accessing distributed repositories,…). These systems are now operationally
robust and supports European Commission Directorate-General – Mare preparatory
actions for the MSFD such as the European Marine Observation and Data Network
(http://www.emodnet-hydrography.eu/)

Technologies used have been chosen to be compliant to Inspire directive both for
discovery, data access and data visualization services. Standardization has been
considered as a key point for the success of the integration of very large partnerships in
data management. Moreover, these technologies and standards had to be adapted to the
marine domain: management of the 3D for the water column, management of the time
for environmental dynamic and variability.

Ifremer has developed a spatial data infrastructure, called Sextant
(http://www.ifremer.fr/sextant/), in order to answer to the Inspire Directive. The aim of
this paper is to introduce technologies developed for the Sextant infrastructure.
Sextant is a portal to manage, share and retrieve geographical marine information in
order to support multidisciplinary studies (share of geographical information across
disciplines environmental, socio-economical, regulations, geosciences) and support of
decision making (management of usages and resources of coastal zone and fisheries,
risk assessment, renewable marine energies).
The mains functionalities of Sextant are :

   -   the possibility of creating a web portal for each thematic catalog;
   -   the ‘Catalog’ allows end-users to search one or more metadata according to
       different criteria (geographic extent, theme,…). To promote the share and
       distribution of datasets we have normalized the data description (ISO 19115),
       the XML encoding (ISO 19139) and access to catalogs (CSW);
   -   the Web GIS interface allows end-users to create maps including several layers
       from internal and external sources. The portal access to local or remote OGC
       services displaying data by WMS;
   -   the download basket allows end-users to download the selected data in various
       formats and projections for use in GIS software.

Sextant allows access to multidimensional gridded datasets thanks to Web Services
(WMS, WCS, SWE) developed for oceanographic model output, meteorological model
output and digital elevation model. At the moment, Sextant offers 2000 metadata on-
line describing around 5000 geographic information. SeaDataNet offers the same kind
of services at European level and relies of a distributed network of data centers and
describes more than 1 million of observations data sets.

The objective of this presentation is to present the methods, tools and resources
developed by Ifremer to meet the requirements of the Inspire Directive while ensuring
interoperability of these information systems.

								
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