Table 4 Spatial data review for constructing land use, land-use change matrix, and activity data
Data name | Description | Time series coverage | Spatial resolution and data type |
|---|---|---|---|
Cadastral map | Map prepared by dividing the national land into 28 categories according to land-use purpose and status | 1970s–present (renewed monthly) | Vector |
Use district map | Areas determined by urban management plans do not overlap with economical and efficient land use and promote public welfare by limiting land use | 2005–present (renewed monthly) | Vector |
Ortho-images | Data produced through orthometric correction using aerial photographs of South Korea | 2002–present (renewed every 2 years) | Raster with 12 cm (urban area), 25 cm (others) |
Digital forest type map (1:25,000 scale) | Map of forest information on National Forest Resource Survey | 1st (1971–1974) 2nd (1978–1980) 3rd (1986–1992) 4th (1996–2005) 5th (2006–2010) | Vector |
Digital forest type map (1:5000 scale) | Map of detailed forest information using digital aerial photographs, ortho-images, and 1:25,000 Forest Type Map | 2009–2013 | Vector |
Forest aerial photographs | Black-and-white aerial images constructed over 4 periods in South Korean territory | 1st (1971–1974) 2nd (1978–1980) 3rd (1986–1992) 4th (1996–2005) | Raster with 0.8 m |
Land cover map (1:50,000 scale) | Spatial data represented by classifying land cover types into seven categories | Construction (1998), Advanced (2000), Actualizing (2010), Update (2019) | Vector |
Land cover map (1:25,000 scale) | Spatial data represented by classifying land cover types into 22 categories | Construction (2004) 1st update (2007) 2nd update (2009) 3rd update (2013) update (2018) | Vector |
Land cover map (1:5000 scale) | Spatial data represented by classifying land cover types into 41 categories | Constructed by region (2010–2016) | Vector |
Smart farm map | Map of agricultural land constructed using high-resolution aerial images | 2014–2018 | Vector |