Objectives

By mobilizing the latest advances in satellite observation, particularly the SWOT satellite (for surface waters) and TRISHNA (for evaporation and agricultural use), the initiative seeks to fill critical knowledge gaps in water management, especially in the world’s most vulnerable regions.

The initiative has a dual objective:

• Scientific: to strengthen our ability to understand hydrological dynamics, including water levels, flow rates, evaporation, and soil moisture, with global, consistent, and continuous coverage. 
• Operational: to provide public decision-makers, basin managers, farmers, and international organizations with reliable, accessible decision-support tools—even in areas without ground monitoring stations.

By combining satellite data, numerical modeling, and local expertise, One Water Vision supports:

• Anticipation of droughts and floods,
• Monitoring of water resources under climate change,
• Agroecological transition through improved irrigation management,
• Coordination of international efforts around shared water governance.

By improving access to data, the initiative aims to reduce hydrological inequalities, foster local innovation, and embed water management within a global, sustainable, and inclusive framework.