Predicting floods on the Zambeze River in Africa

Courtesy of USGS Science for a changing world http://astrogeology.usgs.gov

Reduce the colour depth of the satellite image of the Zambeze River to 16 colours. Work on changing the darker colours to black to make the areas prone to flooding stand out.

Need a hint?

Check your answer against an image of the Zambeze River actually in flood!

Notice that while our image enhancement easily outlines flooding areas on the delta, cloud cover makes us miss the major tributary on the top right hand side!

Remote sensing and satellite imagery must always be followed up with ground checks!

• 1. Getting Started
  • Example 1: Studying the rocks on Venus
  • Example 2: Hawaii – exploring its waters
• 2. Try some more images
  • Finding zones of maximum turbulence in a cyclone
  • The Pyramids
  • Predicting floods on the Zambeze River in Africa
• 3. Additional images