👉 Rain math, or "rain counting," is a fun and engaging way to understand the relationship between rainfall and runoff in a watershed. It involves tracking the amount of rain that falls over a specific period and then calculating how much of that rain actually becomes runoff, which flows into streams, rivers, or other water bodies. This process helps in predicting flood risks and managing water resources effectively. By dividing the total rainfall by the watershed's capacity to absorb or convey water (like through infiltration, evaporation, or surface runoff), one can estimate the volume of water that will contribute to runoff. This simple yet powerful method is crucial for hydrologists, urban planners, and environmental scientists to make informed decisions about water management and infrastructure development.
