Abstract
Within the framework of the SYSCOLAG pluridisciplinary research programme on ICZM in the Languedoc-Roussillon region of France, we propose an ISO-19115-compliant metadata service to share informational resources. Each resource is described using a metadata form. Each form consists of textually and spatially controlled terms which are stored in a single DBMS (Postgres and Postgis). The graphical user-interfaces contain the expert knowledge (thematic and spatial ontologies) and include a mapping service (SVG and OGC-compliant WMS-WFS) that allows spatial and thematic queries to be addressed to the metadata service.
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Notes
- 1.
The term “resource” refers to information elements such as data, documents, protocols that will be described and qualified at a higher level (metadata) using the metadata service. Depending on the organisation and the individual, a resource might be a report, a map, an image, a video clip, a dataset, a database, a model, a value measured by a sensor, an image-segmentation software application, etc.
- 2.
In its basic meaning, the term “metadata” signifies “data about data, or data that describes data and helps the user make relevant use of it”.
- 3.
MADAME, Methods for Access to data and Metadata in Europe (1998–2000). The MADAME project will implement methodologies for accessing European data and metadata and, thus, has for goal the valorizaton of public data, http://www.shef.ac.uk/%7Escgisa/MADAMENew/Content.htm.
- 4.
INSPIRE is an EU initiative to establish an infrastructure for spatial information in Europe that will help make spatial or geographical information more accessible and interoperable for a wide range of purposes, including those supporting sustainable development, http://www.ec-gis.org/inspire/.
- 5.
Dublin Core Metadata Initiative (DCMI), http://dublincore.org/.
- 6.
According to Gruber, an ontology is a specification of a conceptualization (Gruber, 1993).
- 7.
Using the Postgis spatial function of the type YMAX(the_geom).
- 8.
Using the GeometryFromText(text,[<SRID>]) Postgis function.
- 9.
Using the “within(geometry,geometry) and intersects(geometry, geometry)” Postgis functions.
- 10.
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Barde, J., Libourel, T., Maurel, P., Desconnets, JC., Mazouni, N., Loubersac, L. (2010). A Metadata Service for Managing Spatial Resources of Coastal Areas. In: Green, D. (eds) Coastal and Marine Geospatial Technologies. Coastal Systems and Continental Margins, vol 13. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9720-1_1
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