Views on Dutch protection against high water levels (article in Dutch, Contact December 2008).
Marcel Stive, member of the New Delta Committee, and Wim Kanning, member of the Young Deltacommittee, comment on the plans to protect the Netherlands against predicted high water levels.
Jetski used for measurement of sand bed (article in Dutch, Contact December 2008).
Advise from the Delta Commission is clear. The coast must be more safe. To be exact, 10 times as safe for a minimum. One of the proposed methods to reach this safety is doing large scale sand nourishments. PhD-students Matthieu de Schipper and Sierd de Vries and MSc-student Bas van Son are searching for the best way to do this. Among other things by using a Jetski for measuring the sea bed.
Prevention is better than cure (article in Dutch, Contact December 2008).
According to Ruben Jongejan this certainly applies to unwanted events with enormous damge, but a small possibility of occurence. Therefore, dike reinforcement should have higher priority than disaster management.
Tidal power plant Brouwersdam technically achievable (article in Dutch, Contact December 2008).
According to senior researcher Hans van Duivendijk, a water level fluctuation of 0.7 m in the Grevelingenmeer could supply more than 60.000 households with electricity.
Everything under safety flag (articel in Dutch, Techno! November 2008).
The New Delta Committee advises to invest a lot of money, but only part of this amount of money benifits the safety against floodings. Even at this moment, 30% of the Dutch water defences doesn't meet the safety requirements.
Waterproof (article in Dutch, Delta, 6 November 2008)
This is the name of a big national exercise organised by Taskforce Management Floodings. Prof. Vrijling did consultancy as an expert for this project. The exercise was carried out in the week of 3 November 2008. Administrators and emergency services simulated an approaching super storm.
Experts record 'Waterproof'
Bas Jonkman and Ruben Jongejan contributed to a national exercise, where a big flooding was simulated. More background information can be found on the website of the taskforce floodings.
They did not starve (article in Dutch, Delta 6 November 2008).
At the time that Hoan Nguyen defended his doctoral thesis, his family in Vietnam ran away from floodings due to extreme rainfall. Supply of foof and fresh water is the biggest problem for the citizens in Hanoi.
Jet skis with radar (television broadcast, 15 September 2008, in Dutch)
Television programme 'Nieuwslicht' shows interest in measurements along the coast with a jet ski. Marcel Stive, Matthieu de Schipper and Sierd de Vries were interviewed and filmed.
Lost in a Sea of nice Plans (article in Dutch, 12 september 2008).
Professor Vrijling is in favour of the concept of traditional polders to cope with eventual climate change; they have proven their value for centuries.
Shortage of Civil Engineering graduate students (HCW krant, September 2008, article in Dutch).
Consultancies and constructors urgently need young engineers, but the number of graduate students in Civil Engineering decreases.
Delta Committee does not give blueprint (article in Dutch, Technisch Weekblad 13 September 2008).
Professor Marcel Stive, member of the New Delta Committee, gives an outline of the presented plans to protect the Netherlands against the threats of climate change.
Island in front of the coast is a flight in the clouds (article in Dutch, Nederlands Dagblad, 2 September 2008).
The day before the Delta Committee presented its plans to the Dutch parliament, prof. Han Vrijling, chairman of our department, expressed his concern on the government policy of the last years. There are lots of new ideas to deal with possible floodings, but the priority should be to take care of the dikes.
Natural gas fields to coastal defence (article in Dutch, Algemeen Dagblad, 3 September 2008).
Delta Committee on the Right Way (Reformatorisch Dagblad, 8 September 2008).
Prof. Vrijling mentioned it a wise decision of the Delta Committee to prolongate the through past centuries proven methods, although he mentions the (rather extreme) predicted sea level rise not necessary for all measures.
Delta Committee pleas for Development of Deltaic Areas (article in Dutch, Waterwonen magazine, spring 2008).
Wim Kanning emphasised that the Dutch citizens should not be scared of eventual flood damages, but a cost-benefit analysis should be carried out carefully. Flood defences that at the moment do not meet the requirements should without doubt be improved.
How to keep dry feet in the polder? (CDA.nl magazine, September 2008, in Dutch).
Water specialists in discussion: Han Vrijling states that the Eastern Scheldt storm surge barrier can last longer than 100 yeras ahead. The elections of the district water boards should concentrate on safety and overdue maintenance.
Coastal crisis (BBC television broadcast, 12 September 2008)
Rising sea levels will have a major impact on the South East's coastline over the decades to come. It could result in the map of the region being completely redrawn. Even those miles from the sea could end up living under water. Professor Han Vrijling from Delft University says, "In Holland it is a national issue and the South East could use some better defence - if you look to the Netherlands, we spend million if not billions to defend the coast."
Who dares to criticise the deltaplan? (article in Dutch, De Volkskrant, 6 September 2008).
Han Vrijling critisises the plan to widen the coast of South-Holland with hundreds of metres. This is not necessary with respect to flood defence. Huib de Vriend emphasizes that the plans have to be executed now.
Natural gas revenues for coastal defence (article in Dutch, Algemeen Dagblad 3 September 2008)
Revenues of natural gas should be invested in improving the coastal defence in the Netherlands. Han Vrijling does not oppose these plans, but stresses that dike improvement is highly effective and necessary.
'Island in sea is flight in the clouds' (article in Dutch, Nederlands Dagblad 2 September 2008).
The day before the new delta committee presented its plans to the Dutch parliament, prof. Han Vrijling expressed his concern on the government policy of the last years. There are lots of new ideas to deal with possible floodings, but the priority should be to take care of the dikes.
The experience of Wouter ter Horst (radio broadcast Villa VPRO, 2 September 2008).
Awaiting the new pland of the Dutch new delta committee, Wouter ter Horst explains what creative ideas have been collected by the Young Delta Committee. This Committee is a group of young hydraulic engineers, of whic Wouter is one of the founders.
The Tao of water management (article in Dutch, Delta 28 August 2008).
PhD-student Rongchao Li studied the problematic discharge distribution of the Yellow River in China. Han Vrijling and Huib de Vriend of our department joined her and her promotor Eelco van Beek on a working visit.
Sultry weather (article in Dutch, BN | De Stem, vrijdag 1 augustus 2008).
The Dutch meteorological institute KNMI states that climate change is almost certainly caused by human activities. Han Vrijling thinks the effects are over-estimated and relativates the threats.
North-South line to be continued (Nederlandse Vereniging van Risicoanalyse en Bedrijfszekerheid, July 2008).
Many people doubted if the Veerman-committee had ever seriously considered to stop the entire construction of the new Amsterdam metro line. Han Vrijling, however, states that the committee has considered three alternatives: to stop, to construct only the part North of the central station and complete construction.
Port of Rotterdam will be the cleanest and smartest (article in Dutch, Financieel Dagblad 4 July 2008).
Prof. Han Ligteringen and Ties Rijcken present the ambitions of the Port of Rotterdam.
A tidal powerplant in the Brouwersdam (article in Dutch, Algemeen Dagblad, 27 June 2008).
The Brouwersdam could supply 65.000 housekeepings with electricity, which should be generated by a tidal powerplant in the Brouwersdam (Zeeland). In the same time the quality of water and nature will improve, because the tidal movements will return in Grevelingen estuary. A team of Delft University of Technology, supervised by Hans van Duivendijk and Han Vrijling studied the feasibility of such a powerplant. Zicht op de Grevelingen, a magazine by Natuur- en Recreatieschap de Grevelingen also paid attention to these plans (September 2008).
A 21st century Renaissance Man (article in English, Delta, 26 June 2008)
Ir. Ties Rijcken was recently awarded the Rotary Club's 'Leonardo Da Vinci Award' for his work as a scientist and artist. Rijcken is a gifted writer, photographer, inventor and an expert on floating buildings.
Dutch civil engineers are the 'good guys' in New Orleans (newspaper article in Trouw, 17 June 2008, in Dutch)
Almost three years after the hurricane Katrina still one third of the original inhabitants did not return to New Orleans. Dutch water experts are engaged to improve safety in the town. Henk Jan Verhagen explains why.
Artificial islands in North Sea rejected by State Secretary (article in Dutch, Trouw, 10 June 2008).
Dutch State Secretary Huizinga shares the opinion of prof. Han Vrijling that artificial islands will not protect the Netherlands sufficiently against sea level rise. The only achievement of these islands will be an additional coast line that has to be protected and maintained. See also the article in Delta of 12 June 2008 "No Island " (in Dutch).
Wide beach in front of Dutch coast (streaming video wvx, RTL nieuws 09-06-2008 19:30 h, in Dutch).
Tjerk Zitman comments on the plans of State Secretary Huizinga to widen the Dutch coastal area with sand to be distributed with help of natural processes.
Young Delta Committee - call for ideas (article in Dutch, De Volkskrant, 31 May 2008).
The Delta Committee, appointed by the Dutch Government, studies possibilities to protect the Netherlands against floodings in future. This committee organized a brainstorm session for young hydraulic engineers, which resulted in the founding of the Young Delta Committee. This young committee, in which Wouter ter Horst, Bas Jonkman and Wim Kanning of our deparment participate, invites young engineers to think along and send in ideas (deadline: 16 June, 2008). See also www.jongedeltacommissie.nl.
Floating houses (article in Dutch, De Volkskrant 16 May 2008).
Ties Rijcken stresses the advantages of living on the water. It is efficient, flexible and nice. However, some bureaucratic procedures have to be adapted to better facilitate this kind of living.
Race against the tides (article in Dutch, Delta, 8 May 2008).
Hydraulic Engineer Jasper Dijkstra and colleagues map the currents in a bay in Brittany. He hopes to understand why sea grass flourishes so well over there.
Wave jockeys map the sea bed (article in Dutch, Delta, 24 April 2008).
Waves, currents and moving sandbanks are natural phenomena which the hydraulic engineers Sierd de Vries and Matthieu de Schipper gladly grasp into models. But before they start to count, they cross through the surf zone with their jet ski full of measurement equipment. (article in Dutch).
Waken voor te veel wateronderzoek (article in Dutch, BN/De Stem, 22 April 2008).
Professor Huib de Vriend supports the idea to create a knowledge centre in Zeeland, but it should not be a duplicate of the study programmes in Delft and Wageningen.
Lecture 'In deep Water' by Han Vrijling (public lecture in English, streaming video, 15 April 2008).
Sea levels are rising, and in the Netherlands we are constantly reminded of the dangers of floods in our own country and elsewhere in the world. The way in which we deal with an ever changing environment depends very strongly on the timescale we choose to consider. As with climate change, a policy for the next few years might look very different from a longer term vision. We can not tell if and for how long or how quickly the sea levels will keep rising. But in how much trouble are we really in the Netherlands? How do we deal with the risks, how do we implement the safety chain? Is there a sustainable way to adapt to our changing circumstances?
Lecture 'Buoyant Living' by Ties Rijcken (public lecture in English, streaming video, 8 April 2008).
The climate changes, but are floating cities a solution for increasing flood risks?
Dutch innovation platform presents plans (article in Dutch, 14 February 2008).
During the top conference 'winning with water', the Dutch innovation platform presented some major hydraulic engineering plans, like a tulip island and energy basins. Is it old wine in new bottles, or real innovation? Han Vrijling comments.
Water protection innovation (interview, TV programme 'Buitenhof', 10 February 2008 )
Han Vrijling was one of the guests in TV programme 'Buitenhof', to discuss some recent innovative ideas for water protection.
Han Vrijling first speaker in discourse series 'Earth laughs, earth cries' (article in Dutch, De Volkskrant, 12 January 2008).
Nine scientists will discuss the state of our planet in a new series of discourses (Paradisolezingen). On Sunday 13 January 2008, Hydraulic Engineer prof.dr.ir. Han Vrijling was the first speaker.
Sand motor for extra coast (article in Dutch, AD/ Haagsche Courant 7 January 2008, see also De Telegraaf).
If the planned test appears to be successful, the coast between Scheveningen and Hoek van Holland (Netherlands) will shift 150 m seaward, caused by artificial accretion of sand. Marcel Stive contributed to the plans.