Global Drought Monitoring Service through the GEOSS Architecture ...

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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. Page 36
Architectural Implementation Pilot, Phase 3 Version: 2.0 Global Drought Monitoring and European Drought Observatory-Water SBA Engineering Report Date: 11/Feb/2011 Figure 11 Integration of DIAS into Web-based Information System (Koike 2010) Page 37
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