The 2nd International Symposium on Water System Operations (ISWSO2020) brings together researchers and practitioners in the field of monitoring, modelling and optimisation of water systems operations.

The symposium is the second in the new IAHR series, started by the successful ISWSO2018 in Beijing, China. The symposium was originally meant to be held in Summer 2020 but, due to the cover-19 pandemic, it has been postponed to September 2021 and is going to be held as an on-line event, comprising a mix of invited talks, panel discussions, and interactive sessions where participants can present their work in short (2-minutes) presentations and discuss in breakout rooms.