Hydrological Monitoring and data management

• WHYCOS - World Hydrological Cycle Observing System
• INFOHYDRO - Hydrological Information Referral Service
• Assessment of the Performance of Flow Measurement Instruments and Techniques
• Discharge techniques database
• Data Management

Floods

Flood management

• Associated Programme on Flood Management (APFM)
• Integrated Flood Management (IFM)
• IFM HelpDesk

Flood forecasting

• Flood Forecasting Initiative
• Flood forecasting and early warning for Zambezi River Basin
• Prohimet

Water and Climate

• White papers presented during WCC-3
• Development of Hydrological outlooks
• Final Report on the "Expert meeting on water manager needs for climate information in water resources planning (Geneva, 18-20 December 2006)

Regional activities

• Regional Associations activities in Hydrology
• Regional Working Groups on Hydrology
• Region I
• Final report RA II
• Region III
• Final report RA IV [SP]
• Final report RA V
• Region VI

Commission for Hydrology (CHy)

• Current structure
• Fourteenth Session CHy-14 (Documents, presentations given during the session)
• CHy-XIII report
• Communication from the President of CHy
• CHy Pre-Session Forum
• CHy e-Board
• Third Session of the AWG
• Past Sessions

Capacity building and training

• Training activities
• Managing hydrological services
• Hydrological Operational Multipurpose System - HOMS

Publications

• Technical regulations, volume III, Hydrology - Supplement 1
• Guide to Hydrological Practices (English)
  • Spanish version
  • Russian version
• Manuals
• Technical reports and series
• Statements
• Other documents
• Operational hydrology reports (OHR, series discontinued since 2009)

UN-Water

• UN-Water Key Messages on Climate Change and Water (PDF 314 Kb) [Spanish version]

World Water Day is held annually on 22 March as a means of focusing attention on the importance of freshwater and advocating for the sustainable management of freshwater resources.

In December 2010, the United Nations General Assembly declared 2013 as the United Nations International Year of Water Cooperation. The objective of the year is to raise awareness of the potential for, and value of increased cooperation in relation to water.