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Landsat image of a farm in Bedfordshire, England
Farmland from space. Digitised Landsat image of a typical farm in Bedfordshire, England, showing land use. The boundaries of crop fields, broadleaf woodland, grassland, and a farmstead are demar- cated. Agricultural crops include barley, oilseed rape (red), and winter wheat (shades of brown, younger wheat is lighter in colour). The Landsat Thematic Mapper used here produces an image of high-resolution (30 metres). It records reflected radiation in 3 wavebands: near infra-red, mid infra-red and red. This produces the red, green and blue on the image, useful in determining plant type. Photographed by Landsat 5 on 12 June 1992, at an altitude of 705 kilometres.
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