The winner of the 2025 IAHS Falkenmark Award for best PhD thesis has been announced as Dr Vinícius Bogo Portal Chagas from Brazil for his PhD thesis entitled "Hydrological extremes in Brazil: Large-scale patterns, mechanisms, and change". He has provided significant contributions to the understanding of large-scale patterns, mechanisms, and climate change impacts on water availability and coupled hydrological extremes in South America.

The award ceremony is scheduled to take place during the upcoming IAHS Scientific Assembly in Roorkee, India from 5 - 10 October 2025.

Congratulations Vinícius!

The Falkenmark Award for best PhD thesis:

• Recognises outstanding contributions to hydrological understanding of water scarcity and water supply.
• Is granted every year, starting 2023 (nomination must be submitted no later than 31 December).
• Highlights the importance of capacity building and knowledge/data gathering in financially disadvantaged countries.

Eligible nominees:

• Grew up in a financially disadvantaged country.
• Performed the PhD work in one or more financially disadvantaged countries.
• Holds a PhD certificate, which is dated within the last 2 years.