In order for organisations to work together in collecting and using spatial data, an infrastructure is required to set up the rules of engagement. This so-called spatial data infrastructure (SDI) provides the participants with instructions on the handling and packaging of spatial data (standards) and making data discovery easy so that users can find and use it... (more)

This paper reviews several prevalent formats that are used to transmit GNSS data in real-time. This work has initiated from the research on real-time quality control for Network RTK positioning which aims to independently assess the positioning quality of users performing NRTK surveys... (more)

A new postcode system for South Africa is being developed and is to be implemented. This is the eLAND postcode and addressing system, incorporating barcoded location intelligence. It is designed to modernise physical document communications and also to satisfy the service delivery requirements of many stakeholders... (more)

The demand for geographic information is steadily growing, requiring the use of new methods and technologies to register real data and to offer the best available information to users. With this in mind, a pilot project in the Spanish city of San Sebastian was established to apply mobile mapping technology to urban inventories... (more)

Airborne hyperspectral imaging has been used extensively for locating unexploded ordnance, but the technology's use for environmental baseline auditing is now receiving much global attention... (more)

This article examines the need for an accessible national address database (NAD) that can be used by the South African GIS community and proposes a solution for how this can be achieved... (more)

This draft Open Geospatial Consortium (OGC) White Paper discusses cloud computing from the perspective of OGC's geospatial standards development activities and standards baseline. It examines how standards figure into the options, benefits and risks of cloud computing for users and providers of geospatial data and software... (more)

The aim of this article is to give an international overview of the geographical information science (GISc) workforce, the roles and expected competencies of persons working in the industry, including the importance of professionalism through certification and licensing and the adherence to a code of conduct based on ethical principles... (more)

Using new, highly efficient techniques, Carnegie and Colombian scientists have developed accurate high-resolution maps of the carbon stocks locked in tropical vegetation for 40% of the Colombian Amazon (165 000 km2), an area about four times the size of Switzerland... (more)

Spectral rule-based preliminary mapping developed in Europe was replicated for Landsat 5 TM and Landsat 7 ETM imagery in the north eastern region of South Africa. Land cover classes in this area include natural vegetation, informal settlements, intensive agriculture and forestry areas... (more)