News

Where are fresh and saline groundwater located and at what depth? And where are the clay layers that protect the underlying groundwater? This is important information for provincial authorities, water managers, water authorities, farmers and nature managers. To establish a picture, measurements will be made with a helicopter from August this year until February next year in the southern, western and northern Netherlands.

Mangroves are essential for protecting tropical coastlines against high waves and flooding. New research by Deltares and TU Delft, published in Communications Earth & Environment, shows that broad mangrove forests more than 500 metres wide can reduce incoming wave energy by around 75% or more. This emphasises the importance of preserving and expanding these ecosystems.

With our knowledge of water and the subsurface, Deltares contributes to safe and sustainable living in deltas worldwide. We work every day to have a positive impact on people, the environment and society, which means that corporate social responsibility is in our DNA. The work we do also has an impact on people, the environment and society, sometimes unintentionally. Our first Corporate Social Responsibility report shows how we minimise that undesirable impact.

Tropical storms and cyclones have already affected hundreds of millions of people in coastal areas worldwide. Extreme weather can have a devastating impact on coastal communities. To improve readiness, detailed information about all the factors that cause flooding, such as storm surges, rainfall and waves, is essential. These factors often interact in complex ways. New research by Tim Leijnse of Deltares and VU Amsterdam, who will receive his PhD today, offers a solution to this challenge.

Nova Innova and Deltares are launching a trial with the world’s first floating voice of nature. That voice is concealed in glass spheres that float on the water, magnifying the life and movement in the water.

From 1 May 2025, innovative start-ups and SMEs can apply for the new edition of the Deltares SME Challenge. This annual challenge offers Dutch entrepreneurs a unique opportunity to further develop and test their design concepts—with expert support and access to cutting-edge research facilities.

Artificial Intelligence (AI) offers significant opportunities to enhance sustainable water management worldwide, yet integrating these technologies also presents a series of challenges. In partnership with UNESCO’s Intergovernmental Hydrological Programme (UNESCO-IHP), Deltares has released a new publication that explores the current state of AI and Machine Learning (ML) applications in water management.

Seven European cities and partners have worked intensively together for the past three and a half years in the EU project REACHOUT. The goal was to develop climate services that truly connect to real-world practice in cities. The result is a versatile and accessible Triple-A toolkit that helps municipalities analyse climate risks, formulate Ambitions and plan concrete Actions. This approach is now available via the Triple-A Toolkit platform.

The chance of extreme saltwater intrusion in estuaries worldwide will increase by ten to twenty percent by 2100 as a result of changing river flows and rising sea levels caused by climate change. This was calculated by researchers from Utrecht University and Deltares in a joint publication in Nature Communications. This study emphasises the need to include the salinisation of estuaries in the approach to climate adaptation.

Healthy urban soils provide important ecosystem services, such as water storage, stability and natural purification. New EU legislation requires all member states to monitor soil health, including that of urban areas. At the Deltares campus in Delft, we are investigating how this can be monitored and determined.

The international Sava River basin is getting a major upgrade in water management with the launch of the project for renewal of the Sava Forecasting and Warning System. The renewed system will not only ensure insight into flood risks but also provide the region with important information during hydrological droughts particularly relevant to the inland navigation along the Sava. The project led by Deltares and carried out through the International Sava River Basin Commission.

Deltares recently completed a successful test on a glass water defence which will soon be installed in the village of Belfeld in the Dutch province of Limburg. The water defence, an innovative solution for flood protection that does not block the view for local residents, was tested in the Deltares Delta Flume.