Satellite images are not all the same! In fact, they differ in many respects. Satellite images can be best described by taking a look at their resolution. In doing so, you have to distinguish between spatial, temporal and spectral resolutions.
|The spectral resolution indicates how well a spectral-digital satellite sensor can distinguish between the different spectral ranges of the electromagnetic spectrum. The spectral resolution is characterised by the number of spectral bands.|
|The spatial resolution signals the size of the section of the surface of the earth which can be depicted in one pixel. The spatial resolution is stated in metre.|
|The temporal resolution indicates the distance of time between the single image acquisitions of the same area. The temporal resolution can be stated in minutes, hours or days.|