A pro-poor land adjudication procedure for communal land

  by Edward Kurwakumire, Tshwane University of Technology Current studies within the land administration domain require that all sorts of rights whether formal or informal be registered. This is in line with pro-poor land management practices in which the poor and people dwelling in communal areas are often excluded from the formal land administration system. […]

Land tenure administration and GIS: trends and challenges

by Dr. Michael Barry, University of Calgary, Canada The article describes the current state of the GIS market and some of the major trends in land tenure administration. While GIS has become a multi-billion dollar market, the majority of land interests around the world are yet to be recorded. The article describes some of the […]

Probabilistic graphical models for feature-based detection

by Wisdom Dlamini, Swaziland National Trust Commission This article describes the use of probabilistic graphical models, in particular Bayesian networks (BN), for the detection of four problem invasive alien plants, Chromolaena odorata, Eucalyptus grandis, Lantana camara, and Pinus patula from 8-band WorldView-2 satellite imagery acquired over two characteristically different sites in Swaziland. Download the PDF

Target audiences, media and messages for SDI training

by Victoria Rautenbach and Serena Coetzee, University of Pretoria; Julian Smit, University of Cape Town; Heindrich du Plessis, Department of Rural Development and Land Reform; and Ivan Farayi Muzondo, Tshwane University of Technology This article aims to report on research conducted to identify the different target audiences and corresponding SDI education and training media and […]

GNSS applications for agricultural practices

by Guy Blanchard Ikokou, University of Cape Town   Global positioning systems are relatively new technologies when it comes to applications in agriculture. Applications in tractor guidance, variable rate supply of chemical inputs and field monitoring of crop yield were recently tested using GPS. This article studies the basic concepts of GPS as they apply […]

GOCE mission comes to an end

Information from European Space Agency After nearly tripling its planned lifetime, the Gravity field and steady-state Ocean Circulation Explorer – GOCE – has completed its mission and disintegrated on its reentry to Earth’s atmosphere. Dubbed the “Ferrari of space” because of its sleek, aerodynamic design, the European Space Agency’s GOCE has mapped variations in Earth’s […]

Vehicle tracking trial results for SBAS in South Africa

Information from SANSA The SATSA (SBAS Awareness and Training for South Africa) project was established to facilitate SBAS (satellite based augmentation system) deployment in South Africa by increasing technological navigation capacity in the region. During the course of the project, three trials were conducted to evaluate SBAS applications using a test platform to produce realistic […]

Measuring deformation from space

by Davide Colombo, Tele-Rilevamento Europa TRE InSAR (Interferometric Synthetic Aperture Radar) uses satellite radar imagery to precisely measure ground deformation. TRE developed advanced techniques, PSInSAR and subsequently SqueeSAR, as standard monitoring tools in a number of applications: natural hazards, geothermal, oil and gas, mining, urban and infrastructures monitoring. Thanks to its capability in detecting millimetre […]

Unleashing the power of imagery

by Stuart Martin, GeoTerraImage In the fields of satellite imagery and aerial photography, the geospatial community has a myriad of choice with respect to sensors, resolutions, revisit times and capabilities in terms of imagery. Within the community, the ability to extract information and knowledge from these images seems to be lagging behind as most applications […]

The need for consolidated geodatabases

by Alistair Main, GCS Water and Environmental Consultants This article will illustrate the value that geomatics, geographical information systems (GIS), surveyors and related geospatial professionals can add to the South African mining industry by identifying and populating gaps in available information. It will illustrate ways in which national geospatial systems need to develop in order […]