Deltares

🙌 We’re pleased that #CRIDA, a method for climate resilient water resources planning developed by Deltares and the US Army Corps of Engineers, has recently achieved ‘flagship initiative’ status within UNESCO!   CRIDA (which stands for Climate Risk Informed Decision Analysis) combines a stress test for climate vulnerability analysis with an adaptation pathways approach, and has been applied in several countries and decision contexts since.   Ad Jeuken, expert on climate change adaptation and water management at Deltares and co-author on the CRIDA methodology: “In our long-term collaboration with the USACE, UNESCO, and others we have managed to test and innovate CRIDA in different contexts. This enhanced status among the UNESCO member states will likely help to scale up and further operationalise this effort”.   Read more about how CRIDA and how it is currently used, including in South African UNESCO Biosphere reserves 👇 https://rebrand.ly/hu8iuhn #EnablingDeltaLife

💧 Terschelling staat voor de uitdaging om voldoende zoetwater te behouden voor de inwoners. Door klimaatverandering en zeespiegelstijging wordt de zoetwatervoorziening bedreigd. Droge zomers en nattere winters vereisen een balans tussen water vasthouden en afvoeren. Na droogte in de afgelopen jaren was deze winter historisch nat, wat in de duinen en duinrand tot wateroverlast heeft geleid. 💪 Met Hogeschool Van Hall Larenstein – VHL University of Applied Sciences en Wageningen University & Research werken we samen met lokale partijen in een Living Lab om oplossingen te vinden. Dit project richt zich op meten, modelleren en veldproeven om het watersysteem en landgebruik toekomstbestendig te maken. 📏 Vorige week waren Edvard Ahlrichs, Stijn Eggenkamp en Vince Kaandorp op Terschelling om het grond- en oppervlaktewatermeetnet te checken. Dit is helemaal in orde en de hoogtes zijn precies ingemeten. Met de DUALEM, de ‘gele lantaarnpaal’ die je op de foto’s ziet, hebben ze geofysische metingen uitgevoerd in de polder. Hiermee kunnen ze tot ~6m diepte in de ondergrond zoet-zout karteren. 👩🌾 Deltares heeft een klimaatmodel ontwikkeld dat inzicht geeft in de effecten van de klimaatverandering. Terschelling fungeert daarbij als een soort van proeftuin, want de uitkomsten zijn ook voor de andere eilanden interessant. 🗨 Vince: “Vlieland en Schiermonnikoog zijn nog helemaal zelfvoorzienend op het gebied van water en willen dat zo houden. Zij kampen met soortgelijke problemen en willen gebruik maken van de ervaringen van Terschelling voor een integraal watersysteem dat toekomstbestendig is.” 👉 Meer weten? Lees ook het artikel in Deltalife > https://rebrand.ly/hk30lhw #EnablingDeltaLife #Veldwerk #grondwater #klimaatverandering #Terschelling

#VacancyPhDposition: Study the dynamics of phytoplankton and its interaction with nutrient and carbon cycles. Combine numerical modelling and data analysis methods to enhance ecosystem understanding. Sounds interesting? Apply for this vacancy and start your PhD research!    This PhD position is part of the EU-project ‘LandSeaLot’ with project partners from 10 countries. More information about the EU-project ‘LandSeaLot’, the supervision and what you can expect as a PhD candidate, is listed on our website. 👇 https://rebrand.ly/g0e9tds #CareersatDeltares

#FieldWorkFriday! In these pictures we see Vera Van Beek, Nico Meeuwenoord, Koen Castelein and Ulrich Förster testing the sand boil filter kit, an innovative emergency measure of the US Army Corps of Engineers. Sand boils are the first signs of an erosion process whereby sand particles are transported from underneath the dike basis. This can eventually cause the dike to collapse. The filter was tested by Deltares on sand boils along the banks of the Kanaal door Zuid-Beveland (Canal through Zuid-Beveland). It prevents sand transport by locally raising the water level and allowing a controlled outflow of water. Vera and her colleagues saw that, with some modifications, this concept is a promising technique for flood control. The team plans to adapt the design and to produce these filters by Deltares, in collaboration with water authorities. With special thanks to Rijkswaterstaat en Waterschap Scheldestromen. #EnablingDeltaLife #Floods #FloodControl #Research

🌷 How do microplastics interact with antibiotics, and does this affect our planetary health? This is what the new EU project TULIP will investigate. Watch the video to learn more about the link between plastic waste and the spread of anti-microbial resistance (AMR), which renders existing antibiotics useless.   💧 Water is central to this very interdisciplinary issue, bridging research on rivers, oceans, water quality, plastics, microbiology, medicine, data-science, and social sciences. We're proud to be a partner in this project.   Thanks to our experts who will be working on this project: Gertjan Geerling, Frans Buschman, Joana M. Veiga, Eline Boelee, en Anniek de Jong #EnablingDeltaLife #Microplastics #Health #WaterQuality #TULIP #EUProject

☔ The world of (rainfall) nowcasting for applications in flood, the energy market, and agricultural forecasting is rapidly growing. Recent AI developments have only increased the interest in research into nowcasting. Dutch and international parties are interested in developing their own AI-based nowcasting models. To bring them together, last week we organised a symposium in partnership with HKV lijn in water. Delegates from universities and research centres were joined by consultants and end users. Together, they can kick-start new collaborations that make optimal use and bring together the expertise of data scientists, hydrometeorologists, and end users. 🗝 A key takeaway from the day’s discussions is that using AI in nowcasting shouldn’t focus solely on software development. We need the entire spectrum to improve the input (radar) data, to understanding the physics, and to create the right (AI-based) model for the right purpose. 💡 It’s also important to note that a good benchmarking dataset and model testing environment will be beneficial, and allow for better testing of new AI-based nowcasting models. This also fosters the development process. Throughout the day, delegates discussed a broad number of topics and shared their many visions. It was inspiring to see the levels of enthusiasm and everyone’s eagerness to collaborate and share. We can’t wait for better forecasts for the short term!   #EnablingDeltaLife #nowcasting #AI #symposium

💧 Een wadi in elke straat, daar pleit Floris Boogaard voor: “Stortbuien deze lente leidden in ons land tot ondergelopen straten en kelders en in het buitenland tot hevige overstromingen en grote schade. De hoeveelheid water die met piekbuien naar beneden komt, is niet door de riolering alleen te verwerken. (…) Omdat je het moet opvangen waar het valt, pleit ik voor een wadi in elke straat. We hebben er nog minstens 20.000 nodig, willen we ons land leefbaar houden in de toekomst.” 🌱 Floris is expert klimaatadaptatie bij Deltares en lector aan de Groningse Hanzehogeschool. Met Richard Walters, adviseur stedelijk waterbeheer bij de Gemeente Groningen organiseert hij al 10 jaar praktijkdagen. Zoals ook deze week. 🚿 Als onderdeel van een serie praktijkproeven rond waterbergingsmaatregelen zetten studenten Built Environment een parkeervak met doorgroeibare verharding onder water en meten hoe snel het water wegloopt, waardoor de effectiviteit duidelijk wordt. 🏡 Ook helpen deze dagen om bewoners te betrekken en vertrouwen te wekken in klimaatadaptieve maatregelen zoals wadi's. Richard: “Op 300 bewonersbrieven met enquête krijgen we 10 reacties, dan denk je: het leeft niet. Zodra je de wijken intrekt, kantelt je beeld.” 💻 Floris organiseert naast de praktijkdagen ook online #ClimateCafés op Youtube en beheert werelds grootste citizen science database met klimaatadaptieve oplossingen op climatescan.nl. 👀 Wadi nog meer doet op het gebied van klimaatadaptatie? Lees het interview en loop mee langs de wadi’s in Groningen > https://rebrand.ly/20d2hd6 #EnablingDeltaLife #wadi #wadis #klimaatadaptatie #praktijkproeven

#vacature alert🔎 Wil jij met jouw juridische achtergrond toegevoegde waarde leveren aan vraagstukken over onder andere klimaatverandering en de energietransitie? Dit is jouw kans!💥 Als jurist bij Deltares ben je nauw betrokken bij de onderhandelingen rondom de totstandkoming van baanbrekende nationale- en internationale projecten. Jouw doel is om advies te geven over contracten, tenders, subsidieregelingen en samenwerkingsvormen. Door jouw praktische oplossingen worden de juridische risico’s gedekt. Hiermee draag jij bij aan de innovatieve oplossingen voor de maatschappelijke vraagstukken waar Deltares aan werkt.🌍 Gelukkig doe je dit niet alleen maar werk je samen in een enthousiast team vol specialisten! Interesse om hier onderdeel van te worden? Lees meer op onze website of solliciteer direct 👇 https://rebrand.ly/3mgr2dx #WerkenbijDeltares

🌱Seedlings are dependent on environmental processes, even more so than adult mangroves. That’s what Rik Gijsman, PhD candidate at Universiteit Twente, has been working on in collaboration with Deltares. Rik demonstrated how seedling establishment and survival dynamics vary across intertidal areas and mangrove forests. The growth and restoration of mangrove forests is dependent on the establishment and survival of mangrove seedlings. Seedling establishment and survival are influenced by tides, waves, and bed level dynamics. Many restoration attempts have failed because of a lack of consideration of the required environmental conditions for specific mangrove species to establish and grow. 💻 Rik used Deltares’ Delft3D Flexible Mesh model and coupled it to a newly developed individual-based seedling dynamics model. This was applied to a mangrove forest in the Firth of Thames estuary, Aotearoa New Zealand. The Firth is characterised by an expanding mangrove forest where seedlings establish in front of the forest on a yearly basis. The field campaigns that were conducted over the past decade in the Firth allowed for the setup, calibration and validation of the Delft3D Flexible Mesh and seedling dynamics models. The study quantifies the density at which mangrove seedlings can establish and what their survival probability is at different locations across the mangrove forest. This helps incorporate seedling establishment and survival in long-term mangrove forest development models and can be used to develop plans for the restoration of mangroves. Pim Willemsen, expert on nature-based solutions at Deltares: “Mangrove restoration and the development of nature-based solutions are increasingly focused on creating the right environment for vegetation to grow, instead of planting only seedlings. This new scientific publication extends on this by quantifying seedling establishment densities and seedling survival from the sea towards the coast using Delft3D Flexible Mesh with vegetation development. This unique set-up enables the determination of what support mangrove seedlings need for long-term survival in restoration and nature-based solutions projects.” #EnablingDeltaLife #NatureBasedSolutions #PhD #NewZealand #Mangroves

#FieldWorkFriday! How can we integrate Nature-based Solutions in the Rwandan city of Kigali to better protect residents from flooding? Together with local partners, our experts Begoña Arellano Jaimerena and Nanco Dolman discussed the opportunities and challenges, as part of The World Bank project Promoting Nature-based Solutions to increase climate and disaster resilience in the city of Kigali. #EnablingDeltaLife #NatureBasedSolutions