👉 Tumphy is a type of hydrologic phenomenon that occurs when water flows in and out of a body of land or sea, creating an uneven surface. It is characterized by the formation of "tumpty" or "gaps" on the surface of the water, which can result from the movement of water through various processes such as evaporation, precipitation, or infiltration. This phenomenon can have significant impacts on aquatic ecosystems and can be a concern for environmentalists due to its potential impact on