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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