Namibia's modern map base dates from the 1960s when the
South African Chief Directorate of Surveys and Mapping
(CDSM) began a new survey of South West Africa. The basic
scale was 1:50,000 and based on a Gauss conformal projection,
Bessel ellipsoid. The 1:50,000 scale maps showed relief
with a 10 m contour interval, with 5 m in areas of low relief,
and were similar in style to South African specifications,
incorporating cadastral information. Orthophotomaps were
published for the less populated areas of the Namibia desert.
The sheet numbering for this series followed South African
practice and sheets covered quarter-degree quadrangles. The
first maps were issued in 1975 and the series was completed
in 1,218 sheets by 1979, with compilation largely carried
out in South Africa. Since 1973 the Surveyor General's
Department (SGDN) in Windhoek has been responsible
for the publication of all topographic mapping of the
country, and has continued to use South African aid since
full independence in 1990. A limited revision program has been carried out, using
super-wide angle aerial photography.
A 1:250,000 scale map was started in 1960, derived from
1:100,000 scale mapping. The current specification uses a
50 m contour interval with 300 m hypsometric tints and is
derived from 1:50 000 coverage. South African practice is
followed and sheets cover two degrees longitude by one
Since 1977 South African 1:500,000 coverage has included
Namibia. 14 sheets are required to cover the country and
are available as either topographic or aeronautical editions,
with a 100 m contour interval and 300 m hypsometric tints. Other
SGDN coverage includes a wall map using the Albers equal
area projection and showing cadastral data on a relief base,
and 1:10,000 scale orthophoto mapping around Windhoek
and Walvis Bay, which conforms to South African standards.
Soviet military topographic mapping of Namibia exists at the following scales: 1:1,000,000 (10 sheets, complete coverage, published 1977-1986);
1:500,000 (28 sheets, complete coverage, published 1978-1983) and 1:200,000 (146 sheets, complete coverage, published 1979-1982).
These products are available in print, digital raster and digital vector GIS formats from East View Geospatial.
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