Hydrology

Hydrology (from Ancient Greekὕδωρ (húdōr)'water' and -λογία (-logía)'study of') is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and drainage basin sustainability. A practitioner of hydrology is called a hydrologist. Hydrologists are scientists studying earth or environmental science, civil or environmental engineering, and physical geography.