The National Geographic Institute (NGI) of the Ministry
of Construction and Transportation is the South Korean official
mapping agency. It was established under this name in
1974, and is responsible for national mapping, and geodetic
and photogrammetric surveying activities. Official maps use
the Transverse Mercator projection, Bessel ellipsoid, and
employ a UTM grid. A 1:25,000 scale map in 768 sheets
was started in 1967 and completed in 1974. This five-color
series shows relief with 10 m contours and is revised every
two years in urban areas, every four years in rural areas and
every eight years in mountainous regions according to the
amount of unit change in the individual map sheet. A 293-sheet
1:50,000 scale map was derived from 1:25,000 scale
surveys between 1975 and 1979 and is revised simultaneously
with the corresponding 1:25,000 sheets.
After the completion of 1:25,000 and 1:50,000 scale series effort
shifted to the compilation of larger scale mapping. A 1:5,000
scale now forms the Korean base mapping for all of the
country apart from mountainous areas, and was completed
in 15,813 sheets in 1996. Relief is shown with 5 m contours. Since
1990 NGI has produced multi-color 1:10,000 scale
mapping of urban areas derived from the national 1:5,000
series. Of the intended total of 293 maps, 209 had been
produced by the end of 1996. Like the Japanese GSI, NGI
produces a coastal topographic map series. Comprising 195
sheets and started in 1977, about 75 percent of coastal areas
are now covered.
Smaller scale series are also maintained. A 13-sheet
1:250,000 map was completed in 1985 and revised in 1991,
and 1:1 000 000 coverage was generalized from this source
The military mapping agency in Korea is the National
Ministry of Defence.
Soviet military topographic mapping of South Korea exists at the following scales: 1:1,000,000 (4 sheets, complete coverage, published 1985-1987);
1:500,000 (10 sheets, complete coverage, published 1983-1985); 1:200,000 (35 sheets, complete coverage, published 1981-1983); 1:100,000 (111 sheets, complete coverage,
published 1981-1994); 1:50,000 (378 sheets, complete coverage, published 1979-1992) and city (1:10,000 to 1:25,000) topographic mapping of 14 major cities from Chinju (Jinju-si) to Wonju (Wonju-si)
published between 1979 and 1982. These product are available in print, digital raster and digital vector GIS formats from East View Geospatial.
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