Hydrology is the scientific study of the movement, distribution and management of water on Earth and other planets.
Hydrology subdivides into surface water hydrology, groundwater hydrology (hydrogeology), and marine hydrology. Domains of
hydrology include hydrometeorology, surface hydrology, hydrogeology, drainage-basin management and water quality, where
water plays the central role. Hydrological Information Systems (HIS) in India. Need of HIS. HIS, in practice, comprises data
collection and storing system, data communication/transmission system, data transformation system for producing
information and information communication system, which in turn leads to inputs to informed decision making by the endusers. Applications of HIS. The Real Time Hydrological Information System (RTHIS). Hydrology Projects (HP) in India ,
National Hydrology Project (NHP). Mission, vision and Objectives of Hydrology Projects
