Hydrological mapping from SPOT imagery

  title={Hydrological mapping from SPOT imagery},
  author={Abdalla Elsadig Ali},
Four SPOT images, one panchromatic and three multispectral, were studied to evaluate their usefulness for hydrological mapping in an arid environment. Simple visual methods of interpretation were used to plot the drainage network independently from each test image. The results were compared with the drainage network shown on the topographic map of the area. Results show that with the panchromatic image, over 90 per cent of the map content could be discerned, identified, and plotted. The… CONTINUE READING