WMO Hydrological Observing System

WMO Hydrological Observing System

The WMO Hydrological Observing System (WHOS) is  a portal to the online holdings of National Hydrological Services (NHS) around the world that publish their historical observation and/or real-time data without restrictions or cost. It represents the hydrological component of the WMO Integrated Global Observing System (WIGOS).
 Organization/Institution providing links to data
  Organization/Institution without links to data

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Water stress, water-related hazards and water quality pose increasing challenges to modern society. And yet, the capacity to monitor and manage this vital resource is fragmented and inadequate. Billions of people around the world also feel the impact of climate change through water.

Commission for Hydrology (CHy)

The Commission for Hydrology (CHy) addresses basic hydrological observation networks, water resources assessment, flood forecasting and warning, flood and drought management and adaptability to climate variability and change and promotes the exchange of technology and capacity building.