RESURS   A section of a RESURS image taken on 12 August 1995, showing an area in northwestern Jutland, Denmark. Hjarbaek Fjord is seen in the middle. The image was put together on the basis of one near infrared channel, shown in red, and two visible channels, shown in green and blue colours. The intensity of the red colour reveals the level of photosynthetic activity. It can be seen that low-lying areas e.g. hollows along water streams, are characterised by green grass (very red), while agricultural areas are less red, as the grain crops are ripe at this time of year and photosynthesis less active. Forest and other uncultivated areas are dark. Water surfaces are the darkest. The pixel size (resolution) of the image is 160 m.