Delta Life 9

2 6 9 24 And also: 3. Deltares in brief 16. Centre spread: wind farms at sea 18. Flooded by exotics 20. Three dreams of technical breakthroughs 22. Testing ground: Large Diameter Sampler 23. Knowledge in operation: AkzoNobel Industrial Chemicals 27. Climate resilience in twenty-five Indonesian cities 28. Deltares software 29. Deltares organisation 6 CLIMATE CHANGE: LIVE In Louisiana, climate change is undeniable: under the eyes of the coastal inhabitants, a football field disappears on average every one hundred minutes. What can be done? Interview with Justin Ehrenwerth. 9 SEDIMENT MANAGEMENT DOSSIER Sand and mud motors are just two of the many solutions that can be used to allow sediment to work as nature intended: raising coasts and creating new land. What can area managers do with this free building material? 24 THE SAVA BUILDS BRIDGES More than twenty-five years after the break-up of the republic, five countries in the former Yugoslavia are now working together on flood risk management for the Sava River. The story of an historic alliance. CREDITS Delta Life is published by Deltares, the Dutch innova­ tion and research institute in the fields of water, sub­ surface and infrastructure. With independent research, Deltares is building the knowledge base that is urgently needed worldwide to keep deltas, coastal areas and river basins habitable. Knowledge development focuses on five themes: Flood risk, Ecosystems and Environ­ mental Quality, Water and Subsoil Resources, Delta Infrastructure and Sustainable Delta Planning. For more information: www.deltares.nl Editing desk: P.O. Box 177, 2600 MH Delft, tel. +31 (0)88 335 8273, communicatie@deltares.nl Subscriptions are free of charge and they can be requested or suspended by sending an e-mail to info@deltares.nl . Text and editing: Deltares en Maters & Hermsen Journalistiek Translation: Pete Thomas Layout: Deltares and Maters & Hermsen Vormgeving Printed by: Koninklijke BDU Grafisch Bedrijf bv ISSN: 2351-972X Twitter http://twitter.com/deltares Linkedin http://www.linkedin.com / company/217430 Facebook https://www.facebook. com/ #!/pages/Deltares/ 154189334634001 FRONT COVER Sediments such as sand and silt transported by rivers have always served as material for the natural accretion of land in deltas. The shallow Wadden Sea in the north of the Netherlands is growing in line with sea level rise. But keeping the inhabited islands around the Wadden Sea in place is a skill all of its own. The cover shows the tidal inlet between the islands of Terschelling and Ameland. Regular sand nourishment is required for the tip of Ameland, the extremity that extends into the North Sea. This spring, there will be a nourishment trial on the outside of the tidal inlet to the left, just outside the picture. The idea is that the sand will be deposited in the right place by natural tidal movements. Starting on page 9, you can read more about sediment management as a way of protecting the coast and of reclaiming new land.