Research Trend Analysis of Geospatial Information in South Korea Using Text-Mining Technology

Table 1

Geospatial Information (GI) domains.

Domain	Keyword examples
Satellite Image	KOMPSAT, GEOKOMPSAT, LANDSAT, MODIS, SPOT, Cosmo-SkyMed, ALOS, IRS
Aerial Image	Aircraft, Unmanned Aerial Vehicle (UAV), Drone, Lidar
General-Purpose Map	World map, Digital Elevation Model (DEM), Digital map, Electronic map
Environmental Impact Assessment	Land cover map, Land use map, Biotope map, Soil map
Biodiversity Thematic Map	Biodiversity census data, Ecological zoning map
Agriculture Thematic Map	Agricultural census data, Farm Program Atlas, Agricultural land use
Atmosphere Thematic Map	Climatic map, Air temperature, Amount of rainfall
Natural Disaster Thematic Map	Disaster census data, Landslide, Earthquake, Flood, Volcano
Forest Thematic Map	Forest classification, Wood age, Forest location
Ocean Thematic Map	Cadastral map, Water level (Tidal), Ocean-uses atlas, Sea surface temperature
Urban Thematic Map	Population density, Built-up area, Cultural facilities
Transportation Thematic Map	Rail, Road, Airport, Street
Water Resource Thematic Map	Water census data, Water supply facilities, Groundwater, Water resource