Royal Netherlands Institute for Sea Research
Royal Netherlands
Institute for Sea Research
Phone number
+31 (0)113 57 7450
Senior Scientist
  • Global and regional sea-level change
  • Climate change
  • Detection & Attribution of the underlying causes of sea-level change
  • Contributions to sea-level change from land ice, ocean, atmosphere, solid Earth
  • Coastal impacts of sea-level change


Aimee Slangen in EenVandaag. Foto: EenVandaag

Dr. Aimée Slangen

Senior Scientist

‘A realistic picture of the sea level along the coast’

At the NIOZ Sea Level Research Centre, climatologist Aimée Slangen calculates how global sea-level changes translate into effects along the coast. ‘I’m probably one of the few NIOZ researchers who never has to make fieldwork trips, because climate science is something that is mainly done behind a computer screen. For example, we receive concrete measurements of sea levels from satellites down to an accuracy of 1 mm. Then it is a question of calculating computer scenarios. However, we cannot simply translate the scenarios for the Atlantic Ocean into those for the North Sea or the Wadden Sea, because there are many regional effects. We are now trying to calculate these with an accuracy of seven by seven kilometres.’

Sand and concrete

‘In the regional sea-level scenarios for the Wadden Sea, we need to deal with factors such as soil subsidence, sand transport, wind and waves. The scenarios for the Zeeland and South Holland Delta are different, because more coastlines are protected by concrete structures, amongst other things. Due to all these different effects, we also need to try and combine many different models into a single scenario. In doing this, we now produce calculations beyond the year 2100, because large structures like dykes and delta works are not merely built for a period of twenty years.’

Living in a bathtub

‘I am currently one of the five Dutch representatives for part one of the three-part report that the United Nations climate panel IPCC will publish in 2021. This first part investigates the physical aspects of climate change. For example, we can see that the sea level rises due to the melting of glaciers and expansion of increasingly warm water, and that the contribution of the melting ice sheets on Greenland and Antarctica continues to increase. An awful lot of water is enclosed in those ice sheets. For a rich country like the Netherlands, sea-level rise can still be accommodated for a while. But at a certain moment, we will be faced with an almost philosophical question: do we want to live in the Netherlands that is a figurative bathtub – surrounded by dykes that need to be built increasingly higher? With my research, I hope to contribute to a realistic picture of what we can expect in the coming years in our delta on the North Sea.’

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Research interests

I am interested in understanding and projecting (regional) sea-level changes, and on translating these to the coastal/delta/estuarine environment. I like to take a broad approach and study both global and regional sea-level changes, by include all relevant contributions. My focus is on understanding the recent past (20th century) change and projecting future changes for the 21st century and beyond.

About me

I joined the NIOZ Royal Netherlands Institute for Sea Research in January 2017. Working in the Department of Estuarine & Delta Systems (EDS), I am responsible for sea-level change research, both in the open ocean and towards the coast. I am also part of the NIOZ Sea Level Centre of expertise. I am a lead author on the forthcoming IPCC AR6 report, on the chapter on Oceans, Cryosphere and Sea Level Change. Before coming to NIOZ, I did a PhD at IMAU (Utrecht University, The Netherlands) and postdocs at CSIRO Ocean and Atmosphere (Hobart, Australia) and IMAU.


PhD students & Postdocs:

Tim Hermans (Jan 2018 - Dec 2021)

Carolina Camargo (Jan 2019 - Dec 2022) - Funded by NWO gebruikersondersteuning Ruimteonderzoek

Victor Malagon Santos (April 2021 - Okt 2024) - Funded by EU H2020 PROTECT

MSc students:

Eike Schutt (April-June 2021)

Yochi Andrawina (Jan-July 2021)

Annette van den Engel (Nov 2019 - Sept 2020)

Maryse Charpentier (April - Aug 2018)


For more information about my research, links to my publications and updates of my activities, go to or follow me on twitter @AimeeSlangen.

Linked news

Thursday 05 August 2021
Sea levels rising ever faster according to IPCC climate report 2021
In 3,000 years, the average sea level has never risen as fast as in the last century, during which it has risen by 20 centimetres. And the sea level is rising faster and faster. Another 20 centimetres will be added in the next thirty years. If…
Wednesday 14 October 2020
Exploring Sources of Uncertainty in Steric Sea‐Level Change Estimates
Ocean temperature and salinity variations lead to changes in sea level, known as steric sea‐level change. Steric variations are important contributors to sea‐level change and reflect how the oceans have been responding to global warming. For this…
Tuesday 10 March 2020
NWO ENW Groot award for a HIgh-Resolution approach for ice Shelf instability (HiRISE)
Antarctica is the single largest unknown in the current projections of sea level rise. For a large part, this is due to the uncertainty of how ice shelves will evolve in a changing climate. The HiRISE consortium, which consists of TUDelft, IMAU,…
Tuesday 26 November 2019
Interdisciplinary research predicts migration caused by sea level rise
Governmental policy will be necessary to start up emigration from coastal areas that are endangered by sea level rise. The question which policy is most effective can be tested in a model that takes into account sea level rise, migration and…
Wednesday 13 June 2018
Koraalriffen houden tempo verwachte zeespiegelstijging niet bij
Veel koraalriffen, met name in de Caribische Zee en de Indische Oceaan, zullen niet snel genoeg groeien om de verwachte zeespiegelstijging bij te houden, waardoor veel tropische kusten en laaggelegen eilanden komen bloot te staan aan meer erosie en…
Tuesday 05 December 2017
Totale range zeespiegelstijging groter dan gedacht
De totale range van zeespiegelstijging blijkt groter dan gedacht. Binnen 80 jaar kan een regionale stijging van 1,8 meter niet worden uitgesloten, door afname van de massa van de Antarctische ijskap. Dit concluderen onderzoekers van onder andere…
Monday 10 July 2017
Zeespiegelstijging stelt Nederlandse kust vaker op de proef bij storm
De Nederlandse kust zal op jaarbasis steeds vaker te maken krijgen met extreem hoog water vanwege klimaatverandering. Dat blijkt uit een nieuwe risicoanalyse waaraan het Nederlands Instituut voor Onderzoek der Zee (NIOZ) heeft bijgedragen.…

Linked blogs

Sunday 08 August 2021
NIOZ podcast Van Delta tot Diepzee aflevering 14 De zeespiegel als thermometer van klimaatverandering
Het IPCC-rapport 2021 is uit, het VN-klimaatrapport dat ruwweg om de zeven jaar verschijnt. Het rapport geeft een overzicht van de meest recente inzichten en bevindingen van klimaatonderzoek van experts dat over de hele wereld wordt gedaan.…

NIOZ publications

Linked projects

PROTECT; WP7 Regional sea-level change & implications
Aimée Slangen
European Community || European Research Council
Project duration
1 Sep 2020 - 30 Sep 2024
PROTECT; WP7 Regional sea-level change & implications
Aimée Slangen
European Community || European Research Council
Project duration
1 Sep 2020 - 30 Sep 2024
Regional sea-level budget
Aimée Slangen
Netherlands Organization for Scientific Research
Project duration
1 Jan 2019 - 31 Dec 2022