The next phase in GIS development on the internet should restore user freedom and give a fully comprehensive overview of geo-objects originating anywhere and containing all relevant information. It should...

One of the main recommendations put forward at the Third United Nations Conference on the Exploration and Peaceful Uses of Outer Space – UNISPACE III – was the need to...

Optech Incorporated focuses on the development, manufacture and support of advanced, lidar-based survey solutions. Established in 1974 as a privately held, Canadian-owned research and development firm, Optech was originally an...

Increasingly frequent disasters with attendant damage have heightened climate change related environmental and social vulnerability, emphasising the need for tools to support disaster management. In South Africa a National Disaster...

The FIG Working Week 2005 and the 8th International Conference on Global Spatial Data Infrastructure were held in the Egyptian metropolis of Cairo from 16th to 21st April 2005. This...

Disasters are of all ages. When they strike, more often than not they strike suddenly and ruthlessly. The damage disasters cause fills us with deep awe for the unimaginable forces...

Anomalies such as building-lean result from the processing of traditional orthorectified imagery and this limits its use in urban areas. However, the arrival of digital sensors has meant fully orthorectified...

Two important articles, both from Canada, in the present issue of GIM International are on imaging radar. One article focuses on Canada’s second SAR earth observation satellite: RADARSAT-2. This satellite...

A beam coming from the instrument. Aim it at a surface and push the button, and the distance is measured by laser. Reflectorless laser distance measurement, <i>I know what it...

QuickBird imagery offers the highest spatial resolution so far available from a commercial satellite. Resolutions as low as 60cm, combined with high positioning accuracy, make it well suited for mapping...