This document discusses using ontologies and semantic web technologies to integrate heterogeneous agricultural data sources for estimating rice harvests in Thailand. It describes using an ontology registry and integrated ontologies to combine satellite imagery, digital elevation models, land use maps, field survey data, meteorological data, and rice growth models. The goal is to develop a data integration environment to estimate rice harvests using small, distributed agricultural databases from various sources.

1. Application of web ontology to harvest estimation of rice in Thailand Takuji Kiura* Hitoshi. Toritani** Daisuke Horyu* Atsushi Yamakawa* Seishi Ninomiya* *National Agriculture Research Center **National Institute for Agro-Environmental Science (Japan)

2. Backgrounds

6. New MetBroker Broker Decision-Making Support Services Operational Products Simulation Models Detailed Digital Forecast Inference Engine DB Wrapper Basic Vocabulary Item Definition OWL Station metadata RDBMS Metadata database Meteorological databases DB Wrapper DB Wrapper 2. Request 3. Request metadata 4. Request data 1. Register

10. Use Case

14. North-East Thailand

15. Field Survey data, Ground Truth Paddock with enough water: transplanting Neighboring paddock: direct seeding another paddock in the same field: abandoned In Khon Kaen, wet season of 2005

18. How to get? Name of Dataset Name of Satellite Name of Sensor We need relation between satellite image sensing ontology and agricultural ontology

19. Data Integration in Agriculture Weather Data Ground Truth Crop Calendar When they cultivate rice in Thailand? Actual Status? How about weather during rice grow

20. Ontology Registry

23. Ontology Registry Application 1. Developing Register Ontology Application OWL RDF OWL RDF (local) Resource Editor 2. Localization (part) XML Data (local) 3. Local Utilizes Local Application A Local Application B Local Application C Local Application D 4. Data Integration Ontology Metadata XML Data (A) XML Data (B) Related DB Field Survey Data Integration

25. This research is a part of Global Environmental Data Integration Project

27. Thank you for your attention New MetBroker Demo http://www.agmodel.org/metbroker/demo.html