Baseflow residence time

Okay kiddo, let me explain to you what baseflow residence time means.

Imagine a river flowing on the ground. Some of the water in the river comes from rain or snow that just fell and melts into the river, but some of the water comes from underground. When the water goes deep into the ground, it takes a long time to come back up to the river again.

Baseflow is the water that comes from underground into the river, and residence time is how long that water stays in the river before it goes somewhere else.

So, baseflow residence time means how long the water that comes from underground stays in the river before it flows somewhere else. This is an important thing to know because it can help us understand how the river affects the environment around it and how we can use the water in the river for things like drinking, farming and electricity.