Anatomy of a mobile mapping system

  Mobile mapping systems are ground truthing soldiers of accuracy and produce high-quality data to mapping data providers. Popularised by Google’s Street View cars, various mapping data companies operate similar vehicles to collect an array of data for various uses. International mapping data provider, TomTom, is one such company, and recently upgraded their older mobile […]

First images from SPOT 7

The SPOT 7 Earth observation satellite, designed and built by Airbus Defence and Space (DS), was successfully launched on 30 June 2014 and has started a 3-month in-orbit testing phase before its images are made commercially available. A mere three days after its launch, SPOT 7 delivered its first images of the Earth. At 9:52, Indian […]

Light pollution in South Africa: 2011 versus 2001

  This article outlines how artificial skyglow, also known as light pollution, is modelled using Census 2001 and Census 2011 population data. Light pollution is defined as “any adverse effect of artificial light including skyglow, glare, light trespass, light clutter, decreased visibility at night, and energy waste” [1]. This work, illustrated here, is a follow-up […]

Indoor mapping: beyond the front door

  GPS can take you to just about any front door – but indoor maps open a whole new world of possibilities by making indoor spaces accessible and by changing the way we interact with these spaces. The growth of geospatial data, along with the ease of access to it through smart devices (especially smart […]