Cartographic inventory of basic survey data in Africa
In 1974 the International Development Research Centre; approved a grant for the United Nations for usfe by thp UN Economic Commission for Africa,to enable EGA to carry out-a cartographic inventory for Africa,with th« following objectives:(a). To make an inventory, on a country by a country basis existing of the extent of the existing
(i) topographic mapping(li) topical mapping,(iii) aerial phonographic records, (iv) geodetic triangulation and levelling records, and(v) gravity measurements and geophysical surveys;(b) To publish the inventory in a series of indexed maps of the continent, thus identifying the cartographic nork that still remains to be done and;(c) To analyse the existing material, to determine the methods and specifications adopted by the'different countries, and to recommend an optimum set of specifications far future cartographic work in Africa.