This year’s water systems model?

Photo credit: IWMI-CGIAR

Source: IMPACT hydrological model simulation (2013)


Computer models of the world’s water systems need some new thinking

The last two decades have seen substantial effort in the development of GHMs

Is it possible to model the world’s water? In an age of unprecedented computing power, what might seem like an insurmountable challenge has become a reality. Indeed there are now so many global hydrological models (GHMs), as they are known, offering such varying insights into water systems, that scientists may be wondering which they can rely on.

Fortunately help is at hand.

Two researchers based at the International Water Management Institute compared the various global-scale models developed over the last two decades. They conclude that some refinements may be needed if the current selection is to prove useful in addressing future challenges. The results have just been published in the Hydrological Sciences Journal and are currently featured as a time-limited open-access paper.

Read the full article: IWMI-CGIAR



Published by

Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.