Hydrological modelling

Hydrological modelling is like a big puzzle game where you try to figure out how water moves around in the world, like in rivers and lakes and the ground. This is important because it helps us understand how much water is there and how to use it for things like drinking and agriculture.

First, we need to imagine the Earth as if it was made up of different pieces, like a big Lego map. Each piece is called a "catchment" and it's like a big bowl that collects rainwater from the sky.

We need to figure out how much rain falls into each bowl (catchment) and then where that water goes. This is done by using special tools and computer programs that help us understand how water moves from one place to another. We call this movement "water flow".

Water flow can happen in different ways, like when it runs over the ground, seeps into the soil, or flows along rivers and streams. When we look at all of the different ways that water can move around, we call this the "water cycle".

By understanding the water cycle, we can build models (like mini versions of the real world) that help us predict what will happen when we change things like the weather or build dams or change how we use water.

In summary, hydrological modelling is like a big puzzle game that helps us understand how water moves around in the world, by looking at different bowls (catchments) and figuring out how much rain falls into them and how the water flows to other places. It helps us predict what will happen when we change things like the weather or how we use water.