- Online meeting, October 2021 (online, during ICUD2020)
- Postponed meeting 2020, April 2021 (online)
- Lyon, June 2019 (during Novatech 2019 conference)
- Pontresina, December 2018 (during UrbanRain18 workshop)
- Prague, September 2017 (during 14ICUD International Conference on Urban Drainage)
- Pontresina, December 2015 (during UrbanRain15 workshop)
- Kuching, September 2014 (during 13ICUD International Conference on Urban Drainage)
- Lyon, June 2013 (during Novatech 2013 conference)
- St.Moritz, December 2012 (during UrbanRain12 workshop)
- Porto Alegre, September 2011 (during 12ICUD International Conference on Urban Drainage)
- St.Moritz, December 2009 (during Workshop on Precipitation in Urban Areas)
- Edinburgh, September 2008 (during International Conference on Urban Drainage: ICUD11)
- Lyon, June 2007 (during Novatech 2007 conference)
- St.Moritz, December 2006 (during Workshop on Precipitation in Urban Areas)
- Copenhagen, August 2006 (during International Conference on Urban Drainage: ICUD10)
- Lyon, June 2004 (during Novatech 2004 conference)
- Pontresina, December 2003 (during workshop on Urban Rainfall)
- Portland, September 2002 (during International Conference on Urban Drainage)
- Pontresina, December 2000 (during workshop on Urban Rainfall)
- Sydney, August 1999 (during International Conference on Urban Drainage)
- London, September 1998 (during conference on Urban Drainage Modelling)
- Pontresina, December 1997 (during workshop on Urban Rainfall)