How Does Remote Sensing and Airborne Digital Data Relate to GIS /CAD?
In the ‘Perspectives’ column this week – “How Does Remote Sensing and Airborne Digital Data Relate to GIS?” Satellite imagery and digital airborne derived geodata relate to geographic information systems (GIS) in many ways. Can you imagine collecting satellite imagery without having a GIS linked to it? It would be a rather pointless venture due to the fact that only pictures could be shown. Alternatively, a GIS would be considerably less effective and useful without satellite imagery. Imagery is a rich source of valuable information, and this data source is growing significantly. Satellite imagery and airborne sensors collect information whose value far exceeds the value of finding your own backyard in a picture. Homeowner’s are not buying a whole lot of imagery, at least not in Berlin where I live, nor in Toronto where my mother is. Businesses and governments purchase imagery and aerial data products. They do so because they recognise these products have considerable value due to the
