Web map services for these beautiful Dutch topographic maps from now (OpenTopo) and then (Bonne/TMK). See https://map5.nl...
Building GPS tracking apps already back in 2005. This resulted in several advanced and exciting/fun projects like tracking the Schuttevaer Sailing Race in 2008 in collaboration with GeoSports.
Sensor Web and Internet of Things
Working since 2014 on Sensor Web projects with Geonovum, Kadaster, RIVM and 52North. This is about unlocking Dutch Air Quality data using the OGC Sensor Web and its standards like WMS-Time, WFS, SOS and SensorThings API. More: http://data.smartemission.nl
December 2011 - OSGeo Dutch Chapter established
At the GIN-conference in Utrecht we decided that now was the time to establish a Dutch Language Local OSGeo Chapter. This was the beginning of the OSGeo.nl Foundation legally established in 2013 that I now (2018) chair. See https://osgeo.nl
OpenTopo maps by Jan Willem van Aalst
Proud to contribute to these maps made with OpenStreetMap and Dutch Open Data like Top10NL and BAG. Data transformation with NLExtract and Stetl and helped organizing OpenTopo workshops with OSGeo.nl. Maps available via map5.nl.