It is common knowledge that the Netherlands are fighting water since many years. In the frame of the update of the digital terrain model (DTM) of the Netherlands, AHN3 (Actueel Hoogtemodel Nederland), Het Waterschapshuis tendered LiDAR-projects for 2016 and 2017 on several areas of the Netherlands. The project consists in a LiDAR-data acquisition during the leafless season with a point density of about 7 points per m². The LiDAR-data need to be processed into an accurate DSM and, after filtering, into a DTM providing detailed information on the (micro)relief in Netherlands. In total, the awarded parcels comprise over 6.000 km² and consist of over 350 flight lines. The flights need to be executed over two winter seasons of which the first season already started on the 1st of December 2015.
Het Waterschapshuis also coordinates and manages the yearly stereo and orthophoto coverage of the Netherlands in 10 cm GSD (leafless season) and 25 cm GSD (late spring/early summer flights).
The airborne acquired imagery needs to be processed into a detailed orthophoto. For the summer flights also a CIR coverage needs to be delivered. This last product is a.o. used by the Ministry of Economy (dep. Agriculture) to update the LPIS (Land Parcel Identification System).
EUROSENSE has been awarded with 2 parcels (Southern part of the Netherlands -10 cm and the complete territory of the Netherlands -25cm). In total, the awarded parcels comprise 15.000 km² for the 10 cm coverage and 50.000 km² for the 25 cm including buffers. Both contracts are foreseen to be executed in 2016 and to be repeated in 2017.
The 25 cm coverage of 2017 will be the 10th countrywide coverage of the Netherlands executed by EUROSENSE since 1996. The importance of this time series is increasing more and more and the data are very valuable for trend analyses, urban sprawl monitoring and change detection.
With these contracts, EUROSENSE becomes one of the most important data providers for these initiatives coordinated by Het Waterschapshuis. Het Waterschapshuis is a cooperation agreement between several Dutch governmental organisations, such as Rijkswaterstaat, the provinces, the water management organisations,….