Water is a basic subject of life and to generate electricity and irrigation and domesr Resources to assess water resources and provides forecasts for
planning of water storage and agricultural activities and urban
development. The organization also supports an integrated approach multidisciplinary approach to the management of water resources.
The NHSs providing hydrological measurements of variables, including the measurement of surface water and groundwater quality and quantity, these variables essential for the management of water resources effectively and to exchange hydrological data. The floods in many parts of the world is a big problem which makes urgent need to manage the flood of sound management in order to mitigate its impact. The plains are covered by flood fertile land benefiting human development, and the flood itself is a natural phenomenon of phenomena of the natural order of a river. Thus, flood management practices have an important role to play to protect the people and their social and economic development of the floods and their effects.And attaches great importance to the issue of data accuracy and reliability in the formulation of management strategies for integrated water resources. The WHO has a global system program to monitor the hydrological cycle (WHYCOS) in order to help countries to maintain access to information systems with water-related and to communicate this information to decision makers and to the various stakeholders. The organization provides support to members, especially developing countries, to establish a knowledge base accurate, timely and available to enable them to achieve the sustainable development of their freshwater resources.
And warning systems is of vital importance for the prevention of natural hazards that arise from the oceans, such as natural disasters and tsunamis and storm surges caused by hurricanes. The organization is working with its partners to improve warning systems in different parts of the world.
The organization also provides services in support of the safety of life and property on the high seas and to protect the marine environment and the efficient management of marine resources, and on the basis of the marine meteorological data and oceanography that is committed to timely collected and distributed.