Surveying and Geodetic science comprise of five main areas of study, namely, land surveying, geodesy, navigation, hydrography, and adjustment theory and computations. The Department is organized into three thematic areas: geodetic science and navigation, land and hydrographic surveying, and adjustment theory and computations. Geodetic Science is concerned with the study of the figure and size of the earth and the application of this knowledge thereof. Navigation on the other hand is concerned with the guiding of a moving craft to specified destination; usually the craft can be a land-craft, water-craft, aircraft, or spacecraft. The remit of this thematic area covers: Geodesy and Geodetic Positioning, Navigation and Satellite Systems, Mathematical and Theoretical Cartography.