New method to recognise erosion gullies on satellite photos

Published: Friday 15 June 2007

Adoctoral student at the Wageningen University in the Netherlands has developed a method to automatically recognise erosion gullies on satellite photos. The method can help detect erosion at an early stage and help make timely intervention. Erosion is often seen in the field after heavy rainfall, but it is difficult to determine where erosion is taking place on a larger scale.

In his PhD thesis, Anton Vrieling showed a method to recognise erosion gullies in central Brazil on satellite images from the way they reflect light. He trained the computer to recognise gullies without needing to use the human eye. The method could be used to map large areas where erosion is occurring.

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