The activity of Experimental Methods and Instrumentation Committee is transversal to most areas of IAHR. All scientists, practitioners or managers working in the water sector directly or indirectly use data acquired with instruments and processed with mathematical and statistical methods and techniques. Technological advances and societal awareness have brought about changes in the way we acquire knowledge through experiments and observations. This session provides an open forum where IAHR and, in particular, members of Committee on Experimental Methods and Instrumentation (EMI) discuss the future of Instrumentation and Experimental Methods. All themes are welcome, including (but not restricted to): social impacts related to the nexus affordability/reliability of instrumentation; scientific issues such as the future development of data science leading to building, curating and make sense of global databases, merging of data, numerically produced or acquired from nature, data assimilation, data-driven models employing AI and synthetic data; management or political issues such as data ownership, especially in trans-boundary systems, in the drinking water or wastewater sectors or other industries.