
The second International Conference on Opportunistic Sensing of Precipitation will be held at the Royal Netherlands Meteorological Institute, De Bilt, the Netherlands, on 23 and 24 June 2026. It will be organised by the Royal Netherlands Meteorological Institute and Delft University of Technology.
This conference series started in 2025 as the final conference of the European COST Action CA20136 OpenSense, that was held at the German Weather Service, Offenbach, Germany, on 25 and 26 June 2025.
What was OpenSense?
OpenSense aimed to improve access to continental OS observations, establish OS as a widely acknowledged method capable of providing reliable operational precipitation observations, and facilitate their use in precipitation nowcasting and operational hydrological forecasts. Check out this video!
The COST action OpenSense has come to an end in October 2025, but the community and network remains alive. For instance, open-source software tools have been expanded or newly developed within OpenSense and are actively used and developed. Moreover, the COST Innovators Grant SetGMDI, Setting up the Global Microwave link Data collection Initiative for hydrometeorological applications, is a 1-year spin-off of OpenSense and will run through October 2026. It focusses on commercial microwave link data, one of the main opportunistic sensors in OpenSense.
Agenda
On Monday 22 June 2026, there will be a SetGMDI meeting in the afternoon (for invited SetGMDI members only). The conference will take place on Tuesday and Wednesday, and is open to all interested in opportunistic sensing of rainfall, e.g., commercial microwave links (CMLs), personal weather stations (PWSs), and satellite microwave links (SMLs). The detailed Agenda is not yet available. There are no registration costs, but costs for coffee breaks, lunch and one drinks are at your own expense (one fixed amount for all participants).
For more details on the sessions, check the Scientific Topics (to be determined).
The presentation guidelines are available here.
The tentative timeline until the conference
| 9 Dec 2025 | Call for abstracts |
| 27 February 2026 |
Abstract submission deadline |
| 17 April 2026 |
Letter of Acceptance Registration opens |
| 15 May 2026 |
Registration deadline |
| 23 & 24 June 2026 | Conference |