The Doctoral Days in Urban Hydrology (JDHU) are intended for PhD candidates, postdoctoral researchers, and early-career researchers whose work focuses on topics related to urban hydrology. They provide an opportunity to present research, exchange with researchers and practitioners in the field, practice moderating scientific sessions, and expand one’s professional network. They also offer a chance to discover the latest advances in the field, in an atmosphere that is both studious and relaxed.

These events aim to foster scientific collaborations among early-career researchers and to promote multidisciplinary approaches at the interface between engineering sciences and social sciences.

The JDHU are organized every two years, and for this 12th edition in 2026, we will immerse ourselves for two full days at the Campus de la Transition in the Île-de-France region (Forges, Seine-et-Marne). The campus is a place dedicated to experimentation and training around ecological and societal transitions, offering a setting conducive to scientific exchange and interdisciplinary reflection.

Contributions related to the following themes are welcome:

URBAN FLOODING

• Hazards (runoff, river flooding, groundwater rise, coastal flooding) & impacts
• Crisis management & feedback/lessons learned
• Forecasting / prevention

SOURCE CONTROL OF STORMWATER AND MULTI-FUNCTIONAL SOLUTIONS

• Water balance and quantification of water flows and storage
• Reuse of rainwater and unconventional water sources
• Source-control stormwater management systems: grey solutions and nature-based solutions (functioning, impacts)
• Multifunctionality and co-benefits of vegetated systems
• Development of adaptation strategies to global changes and assessment of benefits

URBAN WATER QUALITY

• Characterization / dynamics of pollutants
• Monitoring of water quality parameters (pH, salinity, COD, BOD₅, etc.) & new techniques
• Ecotoxicology
• Microbiology

SEWER NETWORKS

• Wastewater, stormwater, combined systems
• Combined sewer overflows, wastewater treatment plants
• Operation and management
• Asset management

OBSERVATION AND MEASUREMENT

• Conventional techniques
• New technologies
• Citizen science

NUMERICAL MODELING

• Model development and parameterization
• Sensitivity analysis and calibration
• Model evaluation/validation
• Artificial intelligence

SOCIAL SCIENCES

• Sociology of wastewater
• Water policies
• Urban planning

These Doctoral Days are co-organized by the Laboratoire Eau Environnement et Systèmes Urbains of the École nationale des ponts et chaussées and the TEAM (Transfers and Interactions Related to Water in the Built Environment) research group of Cerema.

• April 1 to May 31: Abstract submission
• July 1: Notification of abstract acceptance
• June 15 to September 15: Registration period
• August 1: Detailed program release
• October 5 (late afternoon) to October 7 (late afternoon): JDHU 2026 (in-person event)