1 Development of Metadata and Ontology Standardization Strategy for Korean Earth Observation Data

The frequency and scale of natural disasters such as typhoons, floods, earthquakes, and tidal waves from earthquakes have increased recently. Several nations have recognized that earth observation is essential for protecting the Earth’s environment. Therefore, 50 nations around the world have agreed upon the construction of GEO (Group on Earth Observation), which is to be in charge of the earth observation in an effort to gain understanding of earth system changes as well as to monitor and predict these changes. However, the data format from earth observation varies depending on the areas, institutions, and countries. This presents a challenge when attempting to share and exchange data among different organizations. Thus, a metadata scheme and system of ontology suitable for domestic situations is developed in this study to facilitate exchanges of data regarding areas that benefit society with reference to the principles of data sharing and exchange regarding GEO. Also established is the KGEO metadata and ontology required to identify the metadata situation of earth observation data that is used for nine societal benefit areas of GEOSS