The national mapping agency in Libya is the Survey
Department of Libya (SDL), which was established in
February 1968 as part of the Ministry of Planning. It became
an independent department in 1971 and is currently responsible
for surveying and mapping including geodetic, cadastral,
photogrammetric, and topographic work. Mapping
reflects the uneven distribution of population and economic
activities, with very little coverage of the sparsely settled
southern desert regions of the country.
Italian, British and German medium scales were all prepared
during World War II, but modern mapping of the state was
established before the revolution of 1969 by American agencies.
A 1:250,000 scale series from the US Army Map Service
(now National Imagery and Mapping Agency (NIMA))
covered the area to the north of 28°N and was derived from
1:60,000 scale aerial photographs. The coastal belt was
mapped with a 1:50,000 scale base map compiled from mid
1950s aerial coverage and completed in 240 quarter-degree
sheets. Both of these series were on the Transverse Mercator
projection, UTM grid, International ellipsoid.
American aid ceased after the revolution. After the oil-led
development in the 1970s it was decided to revise the
1:50,000 map, to start work on a new 1:25,000 scale series
covering populated areas in the coastal belt and to extend
the 1:250,000 map to the whole country. A new Transverse
Mercator two-degree band-based projection was adopted to
minimize distortion in larger-scale series and revised
mapping was begun with aid from the French Institut
Géographique National and Polish GEOKART. Some
revised 1:50,000 scale sheets have been published as
orthophoto maps, with contour overprints.
Soviet military topographic mapping of Libya exists at the following scales: 1:1,000,000 (18 sheets, complete coverage, published 1973-1991);
1:200,000 (277 sheets, complete coverage, published 1978-1988); 1:100,000 (729 sheets, primarily complete coverage, published 1971-1989) and city (1:10,000)
topographic mapping of Bengasi and Tripoli published between 1977 and 1985. These products are available in print, digital raster and digital vector GIS formats
from East View Geospatial.
Copyright © 2014 East View Geospatial, Inc.