Screenshot of the Erdas Imagine interface: on the left is a false color image showing water bodies (blue/dark) and healthy vegetation as red. On the right is a processed image for daily ET, where pixels with higher ET having a lighter color, for example the water bodies and the irrigated fields.

A view from Space: using satellites to manage water

by Mcebisi Mkhwanazi For decades, satellite imagery has been used for environmental monitoring, with water management being one of the areas of application. For example, many are familiar with the Landsat images showing Lake Chad in Africa shrinking over the years. Now satellites are used for more than just providing visual images. This paper discusses…