Global Hydrological Status and Outlook System (HydroSOS)

The Global Hydrological Status and Outlook System (HydroSOS) aims to provide the crucial global scale information needed to help water users understand the current status of the world's freshwater systems and adapt to changes by harnessing new technologies and manage water resources with science-based information.
Leading Entity
World Meteorological Organization (WMO)
Contributing Action Number
CA2.7
Primary Entry Point
2: Engage better for countries
Additional Entry Point(s)
3: Align UN system support for integration
4: Accelerate progress and transformational change
Output(s)
Output 2.1: Expertise and resources are fully leveraged by the UN system to support countries, with emphasis on the water and sanitation needs of developing countries
Output 4.1: Financing strategies, frameworks and plans for investing in water and sanitation across sectors are prepared and implemented with UN system support, with particular emphasis on the financing needs of developing countries
Output 4.2: High-quality, disaggregated water and sanitation data and information are available and shared transparently through strengthened national and sub-national monitoring systems and regional and global platforms with support from the UN system
Output 4.4: Enabling environments for water and sanitation innovation are supported by the UN system, including policies, partnerships, and transfer of technology to remove barriers, with emphasis on technology transfer needs of developing countries
Output 4.5: Governance of water and sanitation is improved through UN system support, including with emphasis on the needs of developing countries
SDG 6 Target(s)
SDG target 6.4: Increase water-use efficiency and ensure freshwater supplies
SDG target 6.5: Implement integrated water resources management (IWRM)
SDG target 6.B: Support stakeholder participation
SDG target 11.5: Reduce number of deaths, people affected and economic losses caused by disasters, including water-related disasters
Type of Engagement
Normative support (e.g. development of normative guidance, guidelines and standards)
Data collection and analysis
Capacity development and technical assistance
Geographical Scope
Global level
Regional, transboundary and sub-regional (multi-country) level
Country-level (national, subnational and local)
Country(ies)
Canada
United States
Costa Rica
Nicaragua
Honduras
Cuba
Dominican Republic
Haiti
Panamá
Jamaica
Colombia
Ecuador
Brazil
Peru
Venezuela
Guyana
Suriname
French Guiana
Bolivia
Chile
Argentina
Paraguay
Uruguay
United Kingdom
Ireland
France
Germany
Finland
Czechia
Austria
Switzerland
Italy
Mali
Cote d'Ivoire
Burkina Faso
Ghana
Benin
Togo
Niger
Chad
Sudan
Ethiopia
Kenya
South Sudan
Uganda
Central African Republic
Cameroon
Nigeria
Tanzania
Burundi
Rwanda
Uzbekistan
Turkmenistan
Tajikistan
Kyrgyzstan
Kazakhstan
Nepal
Bangladesh
Thailand
Laos
Vietnam
South Korea
Australia
Fiji
Vanuatu
Solomon Islands
New Zealand
Estimated Annual Budget
10-20 million USD
More Information
https://community.wmo.int/en/activity-areas/global-hydrological-status-and-outlook-system-hydrosos

Leading Entity

United Nations System-wide Strategy for Water and Sanitation

The Contributing Actions are key initiatives supporting the United Nations System-wide Strategy for Water and Sanitation, aligning individual and joint efforts across UN entities and partnering organizations to advance global water and sanitation goals. These actions are integrated into the Collaborative Implementation Plan (CIP) Results Framework 2025-2028, which provides a structured approach to achieving system-wide impact through coordinated UN efforts.
The Priority Collaborative Actions outlined in the framework focus on enhancing water security, improving governance, strengthening climate resilience, and accelerating progress on sanitation and hygiene. By fostering system-wide collaboration among UN agencies, these actions help drive policy coherence, knowledge sharing, and innovative solutions to address the world’s most pressing water challenges.