The Wadden Sea of the southwestern North Sea, the world’s largest area of connected intertidal flats, has existed for several thousand years, despite a more or less steady rise of the sea level.
This has been compensated for by transport of sediments into the Wadden Sea from the adjacent offshore waters of the North Sea. There is an ongoing scientific debate about the mechanisms which cause this onshore sediment transport. Coordinated by the Leibniz Institute for Baltic Sea Research in Warnemünde, an international consortium of scientists from the Netherlands, Germany and Denmark has now joined forces and launched the project PACE (The future of the Wadden Sea sediment fluxes: still keeping pace with sea level rise?) to investigate the new hypothesis that the sediment transport through tidal channels is triggered by salinity differences. First computer simulation studies and field observations at several points in the Wadden Sea support this new hypothesis.
The following essential questions will be answered:
1. To which extent are salinity differences between the North Sea and the Wadden Sea responsible for the net sediment transport into the Wadden Sea and how does their effect compare to known processes such as tidal asymmetries?
2. How do these transports depend on the strength of the salinity differences which may in turn be increased or decreased due to climatological changes in precipitation?
3. Will the intertidal flats in the Wadden Sea survive an accelerated sea level rise due to global warming?
The researchers from the Netherlands, Germany and Denmark will mainly apply high resolution, realistic computer simulation models for the Wadden Sea, which are well calibrated to observational data. The models will be used to answer questions such as “what happens to the sediment fluxes if the freshwater flux into the Wadden Sea increases and sea level rise is accelerated?” Focal areas of the study will be the Marsdiep-Vlie-Schiermonnikoog system in the western Dutch Wadden Sea, the waters around the island of Spiekeroog in Lower Saxony, the waters around the island of Sylt in Schleswig-Holstein and the Danish Wadden Sea north of the island of Rømø.
The project had its kick-off meeting on March 6/7 in Delmenhorst (Germany) to coordinate their research and to define the specifications of the model simulations.
The project is jointly funded by the Netherlands Organisation of Scientific Research (NWO) and the German Ministry of Research and Education (BMBF) in the framework of the Georisk part of the 1st transnational call for proposals on Bilateral Wadden Sea Research.
The participating institutes and the contact persons are:
1. Leibniz Institute for Baltic Sea Research Warnemünde (Germany): Prof. Dr. Hans Burchard (email: firstname.lastname@example.org, Tel.: +49-381-5197-140)
2. Royal Netherlands Institute for Sea Research (The Netherlands): Dr. Theo Gerkema (email: email@example.com, Tel.: +31-222-369426)
3. Helmholtz-Zentrum Geesthacht - Centre for Materials and Coastal Research (Germany): Dr. Götz Flöser (email: firstname.lastname@example.org, Tel.: +49-4152-87-2345)
4. Deltares (The Netherlands): Dr. Gerben de Boer (email: email@example.com, Tel.: +31-88-3358534)
5. DHI Water & Environment (Denmark): Dr. Ole Petersen (email: firstname.lastname@example.org, Tel.: +45-45169200)
6. University of Copenhagen, Department of Geography & Geology (Denmark): Prof. Morten Pejrup (email: email@example.com, Tel.: +45-353-22505)
7. AWI / Wadden Sea Station Sylt (Germany): Dr. Ragnhild Asmus (email: firstname.lastname@example.org, Tel.: +49-4651- 956-4308)
Dr. Barbara Hentzsch | idw
NASA finds newly formed tropical storm lan over open waters
17.10.2017 | NASA/Goddard Space Flight Center
The melting ice makes the sea around Greenland less saline
16.10.2017 | Aarhus University
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
17.10.2017 | Life Sciences
17.10.2017 | Life Sciences
17.10.2017 | Earth Sciences