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Making Sense of Remote Sensing

The use of satellite and drone imagery is taking off in a big way, especially in the agricultural sector. In this blog, I attempt to demystify some of the technical (sales) jargon and provide some practical examples that demonstrate the value of remote sensing and other geospatial technologies in agriculture and related industries. 

These are the bands that farmers should like

In an earlier article I explained that remote sensing – within the context of earth observations – is the practice of deriving information about the earth’s land and water surfaces from afar. In most cases information is obtained by studying, interpreting and analyzing photographs (images) acquired from an overhead perspective. Typically, fancy cameras (called passive sensors) are mounted on satellites, airplanes or drones to record sunlight (electromagnetic radiation) reflec

What exactly is remote sensing?

In laymen's terms, remote sensing (RS) is the process whereby information of an object, or many objects, is collected from afar, i.e. without being in direct contact with it. Humans and other animals apply RS inherently through vision (which is a sensing activity), but generally the term "remote" is only used when the target is out of reach. This is in contrast to proximal sensing, which shares many of the same principles and tools as RS, but is performed in close proximity (

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