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Modern Geomatics Technologies and Applications

Figure 3. RDF precipitation data

Figure 4. RDF Traffic data

The geo prefix is used to specify the type of geometry of features asWKT as well as the type of spatial data of type
wktLiteral. in Table (1) are shown the ontologies used in the research.

Table 1. RDF prefix
VOCABULATY PREFIX
Geo <HTTP://WWW.OPENGIS.NET/ONT/GEOSPARQL#>
Time <HTTP://WWW.W3.ORG/2006/TIME#>
Ex <HTTP://WWW.EXAMPLE.ORG/#>

There are limited number of technologies to implement the process of storing and retrieving RDF data on the Semantic
Web, can support spatial data. In this paper, Parliament is used as a tool for data search and retrieval. The reason for selecting
Parliament as the main technology in this process is its full compliance with GeoSPARQL standards and support for all spatial
functions defined in this standard. Figure (5) represents the data entered into the relational database:

5