As always, the objective of this important event will be to provide an opportunity to communicate, exchange and project on all major topics in the hydrological sciences within the framework of sessions organized by all IAHS Commissions and Working Groups. In the context of the multiple instabilities that prevail today, the task is immense and yet scientists have a duty to provide elements of answers and solutions to the challenges facing us in the coming years. In this respect, the diversity and quality of the expected participants is the guarantee of a productive and high-level Assembly.
“IAHS 2022” in Montpellier will also be an opportunity to make a first assessment of the Panta Rhei initiative (2013-2022) which deals with changes in hydrology and society. The progress of the UPH initiative, "Unsolved Problems in Hydrology", established in 2017-2019, will be another highlight of this Assembly.