Delft Meet Regen 2021 is completely full! With 140 individual participants and 10 locations with weather stations, we are recording the rainfall in Delft from 2 August to 31 October. We will use that data to see if there is an equal rainfall in different locations. Are you participating in DMR2021? Then you will receive an update from us every two weeks by our newsletter, or you can visit the forum. Not participating, but would you like to follow the developments? Follow WaterLab on social media, or send an email to waterlab-sc@tudelft.nl to subscribe to the Delft Meet Regen newsletter.

Results 2020

Between July and September of 2020, we received 1991 measurements from 95 participants. These data were subsequently analysed by TU Delft student Illias Timori, guided by principal investigator Marie-Claire ten Veldhuis. The results are promising! Not only did we receive a lot of data, but most of the data is as reliable as the official KNMI (Royal Dutch Meteorological Institute) data. Because the KNMI has a lot less rain gauges per square kilometer, Delft Measures Rain provides a higher resolution of rain measurements within Delft. That is exactly what we were looking for! You can find an overview of the most important results in the infographic. All data can be found on our data map.

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Delft measures Rain 2020


Variability in rainfall across the city

Marie-Claire ten Veldhuis is a researcher of the TU Delft and investigates how cities influence local rainfall patterns. The amount of rainfall can differ for every neighborhood, despite the relatively small distances between them.

Marie Claire ten Veldhuis / TU Delft

The Royal Dutch Meteorological Institute (KNMI) measures rainfall throughout the Netherlands and on average has 1 rain gauge per 100 km2. In total, there are 300 gauges throughout the country. Apps, like Buienradar (RainRadar), predict and measure the rainfall for every 1 km2. However, the rainfall is measured in an indirect manner, and the results are often not really precise. 

During Delft Measures Rain, we try to increase the number of rain gauges, so that we can do a daily measurement for every km2 of Delft. We aim to do at least 1 measurement per km2 of the city for the duration of 2 months. 


Who and where?

During Delft Measures Rain, we try to increase the number of rain gauges, so that we can do a daily measurement for every km2 of Delft. We aim to do at least 1 measurement per km2 of the city for the duration of 3 months. To do this, we use manual rain gauges and sensors that will be connected to the WOW-KNMI network of local weather stations.