Journal ArticleDOI
Achieving the Impossible: The 1:500 000 'Irrigation Map' of South Africa, 1935-1937
TLDR
A. D. Lewis as discussed by the authors presented a topographical map of South Africa with a scale of 1∶500,000. The map was of inestimable value to the South African Defense Force.Abstract:
Since 1906, South Africa boasted an excellent geodetic framework, and in 1920 an official Trigonometrical Survey Office (TSO) was established. In spite of these achievements, the country, by the 1930s, still lacked reliable topographical maps. One reason for this was that the secondary and tertiary triangulations of the country were still incomplete; another was that the decision-making process as regards surveys and mapping rested with a variety of statutory bodies instead of just one. In 1934, A. D. Lewis, Director of the Department of Irrigation, committed his department to execute a general topographical survey of the country and produce a topographical map on a scale of 1∶500 000. Lewis’ decision met with much resistance from within the country and abroad, but the project was completed in a record period of 4 years. Published just before the Second World War, the map was of inestimable value to the South African Defense Force. It not only became the standard topographical map of large parts o...read more
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BookDOI
South Africa’s water governance hydraulic mission (1912–2008) in a WEF-Nexus context
TL;DR: In this article, the authors provide a historical overview of the manner in which South Africa's water resources have been governed from a time when the Union of South Africa was formed, in 1910, up to 2008, a time of a growing global awareness of the potential impact that climate change may have on water resources in a key region of southern Africa, notable for increasing levels of aridity and more erratic rainfall patterns.
Dissertation
An exposition of the nature of volunteered geographical information and its suitability for integration into spatial data infrastructures
TL;DR: Thissis (PhD)--University of Pretoria, 2016 is a posthumous publication based on a thesis presented at the 2016 South African Academy of Arts and Sciences (SAAS) convocation, where the author’s dissertation was presented as a stand-alone work.
Journal ArticleDOI
Groundwater and the discourse of shortage in Sub-Saharan Africa
TL;DR: In this paper, the authors argue that the absence of the services needed to support groundwater development (including energy, drilling and pumping equipment, hard and soft infrastructure, physical access, finance and credit, and institutional support) is the real constraint.
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