What does Hydrology mean?

Hydrology is the scientific study of water in the Earth's atmosphere, on the surface, and underground. It involves the examination of the distribution, movement, and properties of water in various forms, such as rainfall, snow, rivers, lakes, groundwater, and glaciers. Hydrologists analyze the processes that affect the water cycle, including precipitation, evaporation, infiltration, runoff, and storage. They also study the interactions between water and the environment, as well as the impact of human activities on water resources. The knowledge gained from hydrology is crucial for managing water supplies, predicting floods and droughts, and understanding the overall water balance of a region.