inflow

In many places, the surplus water that needs to be stored comes during a flood massive inflows that arrive over the course of a few hours or days.

We have the travel industry, which is looking for short-term profits, and we have cities who don't know how to manage the tourist inflow.

Of course, controlled outlets come with a major disadvantage of increased complexity, and in many cases, requiring an actual person be available 24/7 to operate the gates and make releases based on inflows.