Satellite data resolution is specified using Ground Sampling Distance (GSD), measured in metres. When designing solutions we consider all sensor types to identify a blend that will optimise performance and cost.
It is often helpful to mix information from different bands of the electromagnetic spectrum (eg optical with radar or infrared), or from non-satellite data (eg drone footage). SAR (Synthetic Aperture Radar) can help with detecting vehicles, which help detect when car and lorry parks are full, and in turn when plants are in operation. Infrared sensors can detect fires, hot spots in industrial and chemical production processes and even warm buildings. These are used in a variety of applications such as for pollution and weather monitoring. Sensor typeĪlongside optical satellite imagery, there are also other satellite sensor types – radar, infrared and more. We take customers through these in some detail during consultation and solution design and we would be delighted to discuss the concepts with you, either informally or in more detail during your buying process. This guide will identify some of the basic considerations. It can be sourced from many operators, each with different options and prices.įor any particular use-case, a key task is to select the most appropriate band, resolution, coverage area, revisit rate and supplier to achieve your goal at an optimal cost. It can be obtained in a range of coverage areas and re-visit rates (including historic data). Satellite data is available in a wide range of bands and resolutions. This short guide will give you an outline of satellite image data, to help with selecting data for your Earth Observation project.
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