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18 december 2021
Design Texas storm surge barrier enters final stage
The design of a 3 km storm surge barrier to protect Texas Galveston Bay and Houston harbour from future hurricanes, is in a final stage and almost ready for financial approval. Professor Bas Jonkman, Hydraulic Engineer at Delft University of Technology, recently spoke at a meeting by the Gulf Coast Protection District (GCPD) about the design and the comparison with existing Dutch storm surge barriers.
02 december 2021
Claire Chassagne and Alex Kirichek winner of NWO team science award 2021
This week it was announced that the MUDNET team, of which Claire Chassagne and Alex Kirichek are members, won the NWO Team Science award 2021.
11 november 2021
Drukte op de Noordzee
Sweet solutions to a salty problem
Some sixty kilometres, all the way up to Gouda, that’s how far inland the Rotterdam Waterway has been carrying salty North Sea water over the last few years. Salt intrusion in Dutch rivers is a growing problem for the country’s drinking water supply and agriculture, not only in the Dutch delta but in deltas worldwide. Julie Pietrzak is trying to find better ways of predicting and combating the problem.
Counting grains of sand to understand coastal dunes
The Dutch coastline is continually changing. Coastal engineer Sierd de Vries is using small ventilators, home-made wind tunnels, drones, jet skis and laser scanners to gain an insight into the development of coastal areas and dune formation. He can often be found sitting close to the Sand Motor counting grains of sand. It’s all in aid of providing more accurate predictions of the long-term changes affecting the coastal landscape.
Delft model protects wind turbines from risks posed by sea ice
Researcher Hayo Hendrikse (CEG) has developed a new model that gives accurate calculations of the effects of sea ice on offshore structures, such as wind turbines and oil and gas platforms. It turns out that ice causes less wear and tear in these structures than was previously assumed. Thanks to a successful partnership with Siemens Gamesa, Hendrikse's model is now being used in the construction of new offshore wind farms.
Into the mud to help nature
Intertidal flats: you might know them from the Wadden Sea area, but they can also be found in the south-western region of the Netherlands. An intertidal flat is an area that is underwater at high tide and above water at low tide, explains De Vet. “The water can rise or fall by five metres within six hours. At low tide, this creates small islands and strips along the coast (tidal flats)”. Intertidal flats are of great ecological value. The lugworms, cockles and crabs living in these areas make them an important pit stop for migratory birds.
Can sandbanks save mangrove forests?
Waking up early and going into the field on a small fishermen's boat, while the sun is rising behind volcano tops. That's how days started for PhD student Silke Tas during her two month fieldwork in Indonesia. The rest of her days were less idyllic: they consisted mostly of treading through the mud to get the right measurements for her research. She studies the workings of coastal sandbanks that give a chance to mangrove forests to restore, so that the forests can, in turn, prevent coast erosion.
Waiting for the perfect storm
For months hydraulic engineer Patrick Oosterlo has been waiting for a heavy storm. One that can truly test his equipment that was installed in and on a dike on the coast of the eastern Wadden Sea. He needs high waves and strong winds to decide: is this dike high enough?