The International Association of Hydrological Sciences (IAHS) will host its Scientific Assembly 10-14 July 2017 in Port Elizabeth, South Africa. Submission of abstracts for the various symposia and workshops is now open via the Copernicus online system. Please note that the submission deadline for all sessions is now 14 February 2017. The assembly will run under the theme “Water and Development: scientific challenges in addressing societal issues”. IAHS promotes the study of all aspects of hydrology through discussion, comparison, and publication of research results and through the initiation of research that requires international cooperation. IAHS Press publishes the monthly Hydrological Sciences Journal, the Red Book Series that includes proceedings of between eight and 12 symposia per year, and other more specialised publications. IAHS maintains strong connections with the International Hydrological Programme of UNESCO and with the Hydrology and Water Resources Programme of the World Meteorological Organisation (WMO). For more information on the IAHS Scientific Assembly visit the event page here.