IAHS has a series of initiative including Scientific Decades, working groups and regional committees.

Scientific Decades:

2003-2012:  Predictions in Ungauged Basins (PUB)

2013-2022: Panta Rhei - Everything Flows: Change in hydrology and society

2023-2033: Science for solutions - Hydrology Engaging Local People IN one Global world (HELPING


Unsolved Problems in Hydrology (UPH)


Regional Committees:

Committee for Africa


Working Groups:

History of Hydrology

Former IAHS Working groups:

The Electronic Geophysical Year, 2007-2008
Hydrology 2020 Working Group
IAHS/WMO Working Group for GEWEX
Hydrometeorological Projects, integrated to ICCLAS (Melbourne GA)
IAHS Task Force on the Use of GRACE Data, integrated to ICRS (Melbourne GA)