Global Drought Monitoring Service through the GEOSS Architecture ...

Architectural Implementation Pilot, Phase 3 Version: 2.0
Global Drought Monitoring and European Drought
Observatory-Water SBA Engineering Report
Date: 11/Feb/2011
Figure 9 EuroGEOSS Broker Discovery Augmentation Component Expansion of
Drought (diagram kindly provided by Mattia Santoro)
3.4 Semantic Development Activities within GEO: the Data Integration and
Analysis System (DIAS) Contribution from Japan
The DIAS approach is illustrated within Figures 10 and 11. Each GEO Societal Benefit
Area, i.e., Disasters, Water, Sustainable Agriculture, Biodiversity, Health, Energy is represented
by a domain within the “application layer.” The overall user requirement is to support crossdisciplinary
or multidisciplinary sharing of information and data. The DIAS system supports the
organization of information within each of these areas.
Figure 9 illustrates a SBA area, in this case drought, using EuroGEOSS (see below). At
the center of the graph is “drought.” “Drought” is linked to “Species impoverishment” (within
the Biodiversity cluster) in one node and to “famine” (within the Sustainable Agriculture cluster)
as another node. The arrangement of concepts for each GEO SBA is the ontology for each GEO
SBA. DIAS also separates this conceptual scientific terminology from geographic locations and
place names (Figure 12). The drought lexicon, for example, comprises the lexicographic
content. Each ontology or collection of ontologies for each of these areas can be loaded into the
semantic network dictionary. A semantic network illustrates the relationship among concepts.
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