Why sea-level research matters
Over 600 million people live and work at the coast. For these coastal regions, sea-level rise is one of the most important consequences of climate change. Research has shown that at least 70% of the observed sea-level rise is caused by human emissions of greenhouse gases.
In the Netherlands, about half of the land is located below sea level. We have a long history of keeping the water out and are known worldwide for our flood-safety construction works. People all over the world need to prepare for future sea-level rise, particularly in low-lying countries and delta areas like the Netherlands.
Our research approach
The sea level can be seen as a big thermometer, measuring the state of the climate system. The sea level changes, because of changes in the ocean, in the atmosphere, on the land and in the solid Earth. This impacts the coast in different ways, not only in terms of physics (increased sea levels), but also in terms of ecosystem interactions. For this reason, at NIOZ we look at sea level across different scientific disciplines.
We work at better understanding of regional sea-level changes in the past, on time scales of years, decades and centuries. We also work at getting better projections for the whole world, with a focus on coastal change and in particular the Dutch Delta and the Wadden Sea, to help prepare vulnerable coastal regions for future climate change.
Sediment transport and sea-level change
We focus on processes that determine sea level changes but that are also affected by sea level changes in a synergistic way. A substantial part of our research deals with the coupling between the cryosphere, oceans, solid Earth and sediment transport. We aim at understanding how sea level changes affect tides, currents, sediment transport and deposition. We also study sea level changes in the geological past, where data and models can provide constraints for future scenarios.
The interaction of sea-level change with coastal (eco)systems
The place where sea-level change matters most is at the coast. Therefore, we extend our work towards the consequences of sea level changes for the biogeomorphology of tidal ecosystems along our coasts. These systems host benthic species like algae, mussel beds and oyster reefs and provide foraging opportunities for birds.
Part of our research focuses on how tidal ecosystems can be used to defend our coasts against sea-level rise impacts. At NIOZ, we study tidal ecosystems using (field) flumes, wave-mesocosms,
remote sensing techniques, and modelling. This allows us to assess how key-organisms that make up the ecosystems respond to new environmental settings and affect biogeomorphic processes, which is key to predicting their long-term fate under sea level rise.
Collaboration on (inter)national level
We aim to strengthen the collaboration on a national level, bringing together researchers from various institutes where sea level change is being studied, and we regularly organize workshops and symposia to facilitate the exchange of knowledge and the initiation of common research projects.
In addition to many international project collaborations, we also contribute to the forthcoming Sixth Assessment report of the Intergovernmental Panel on Climate Change by providing a Lead Author for the chapter on Oceans, Cryosphere and Sea Level Change of Working Group 1.
22 Mei - Tijdens het nationaal congres ‘Waddenzee Wereldklasse’ op 17 mei jl. in Leeuwarden ging de korte film ‘Over zeespiegelstijging, bodemdaling en sedimentatie in de Nederlandse Waddenzee’ in première.
13th June 2018 - Many coral reefs will be unable to keep growing fast enough to keep up with rising sea levels, leaving tropical coastlines and low-lying islands exposed to increased erosion and flooding risk, new research suggests.
Twee rotsblokken op het Bahamaanse eiland Eleuthera trokken de bijzondere aandacht van wetenschappers. De ‘koe’ en de ‘stier’, beide een paar mensenlengtes hoog, zijn een toeristische attractie, maar vertellen ook een verhaal over klimaatverandering.
Upcoming events 2018
26 - 29 August 2018
"Impact of sea-level rise from past to future (iSLR)" - Utrecht, NL
- Paulo Stocchi
- Dr. Aimee Slangen
In the media
21 Februari 2019 - Een Vandaag
Hoe het Waddengebied gevaar loopt door zeespiegelstijging
19 December 2017 - NRC | Advertorial
Kijken in de spiegel van de zee
Broeikasgas verandert onze blauwe planeet. IJs smelt, het zeewater in oceanen stijgt. Zeespiegelonderzoekers van het Koninklijk Nederlands Instituut Voor Onderzoek der Zee (NIOZ) inventariseren de reacties van regionale kustsystemen op het rijzende zeeniveau. "De zeespiegel is een soort thermometer van het klimaat."
27 November 2017 - BNNVARA | GroenLicht
Wat zijn de gevolgen van zeespiegelstijging voor het eilandje Kiribati?