The island nation of the Solomon Islands, located to the east
of Papua New Guinea relies upon a map base established
by British agencies. The British
Directorate of Overseas
(now Ordnance Survey International (OSI))
compiled the first modern topographic mapping in the
period 1967-76. This 1:50,000 scale map was derived from
aerial coverage and published in four-colors on the UTM
projection, International ellipsoid, with a UTM grid. Sheets
used a 40 m contour interval. After independence in 1978
the Survey and Mapping Division took over responsibility
for topographic, cadastral surveying and map publication.
Mapping is now the responsibility of the Lands
and Surveys Division (SILSD) in the Ministry of Lands and
Housing. Three new sheets in the 1:50,000 scale map were
issued in 1981 in association with the Royal Australian
Survey Corps and SILSD has extended coverage onto Rennell
Island, including the publication of 1:25,000 scale mapping.
A recent program is also using Australian aid to
update the 1:50,000 scale topographic base, with new
mapping derived from updated aerial coverage, and prepared
on an Intergraph-based digital production flowline. The first
revised sheets appeared in 1996 and it is planned to revise
the whole series. A derived map at 1:150,000 scale with
layer-colored relief was issued in conjunction with DOS
prior to independence. Larger-scale mapping of developed
and urban areas is also being carried out. This includes
1:10,000 scale mapping and 1:2,500 scale coverage of main
settlements. Names from the 1:150,000 scale map are
included in a gazetteer of place-names and SILSD also
publishes smaller-scale maps of the group.
Soviet military topographic mapping of the Solomon Islands exists at the following scale: 1:1,000,000 (7 sheets, complete coverage, published 1973-1974). This product is available in
print, digital raster and digital vector GIS formats from East View Geospatial.
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