NEW WAYS OF EXPLORING CARTOGRAPHY. DEVELOPMENT OF SPANISH
NSDI
S. Mas-Mayoral, A.F. Rodriguez, P. Abad-Power, A. Sanchez-Maganto, J.A. Alonso-Jimenez
National Geographic Institute, Spain
smas@fomento.es
The Spanish
Spatial Data Infrastructure (Infraestructura de Datos Espaciales de
España, IDEE), is accessible through the Internet (www.idee.es) since July 2004, is an example of
a collective project based on the cooperation of a large number of actors in
Spain: governmental bodies at national, regional and local levels, private
companies, universities, citizens,…designed to offer a wide range of geographic
resources freely on the net All these goals are achieved through consensus and experiences interchange according to INSPIRE
guidelines, Open Geospatial Consortium (OGC) interoperability specifications
and ISO 19100 standards.
This
project has been coordinated by the National Geographic Council, a governmental
body, which committed its Geomatic Commission to define the IDEE (Spanish SDI).
This Commission launched a Working Group for the IDEE that has produced
technical recommendations: Spanish Core Metadata based on ISO 19115 and Dublin
Core and Spanish Gazetteer Model based on Project Alexandria Digital Library
and ISO 19112, to harmonize the individual initiatives of its members.
The IDEE is
a distributed, multilingual, internet accessible system in which cooperate
sinergically existing SDIs in Spain. It offers a wide range of services compliant
OGC standards: Catalogue Service Web (CSW), Web Map Service (WMS), Gazetteer
Service (Gaz), Web Feature Service (WFS), Web Coverage Service (WCS) and Web
Map Context (WMC).
Recently,
some quite interesting applications has been developed using those services: a
freeware standard OGC client of WMS and Gaz services for PDAs; a
three-dimensional navigation programme, also freely available, that can use any
available image provided by a WMS in combination with a Digital Terrain Model
(DTM) served by a standard WCS; spatial analysis applications to explore Corine
Land Cover data and DTM information of a region; and some examples of Web
Processing Services offering geoprocessing functionalities with standardised
interface, ready to be integrated in other applications and geoservices.