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Aerial maps and GPS-style systems will measure "the distance from each property to a series of amenities and services".

Each of the buildings in the database has a unique identification, and the system can specify the use of around 90pc of buildings in the country – if they are, for example, a newsagents, school, takeaway or office block.

The spokeswoman said the GeoDirectory "provides information on property location and type; and spatially derived data that indicate relative distances of all residential properties from a series of key amenities and services including transport, health, education and emergency services".

Figure 4 illustrates a satellite remote sensing process as applied to agricultural monitoring processes. The sun (A) emits electromagnetic energy (B) to plants (C). A portion of the electromagnetic energy is transmitted through the leaves. The sensor on the satellite detects the reflected energy (D). The data is then transmitted to the ground station (E). The data is analyzed (F) and displayed on field maps (G).