08 Apr - 09 Apr Online

NAC 2021

The NAC (Nederlands Aardwetenschappelijk Congres) conferences bring together all fields of research within the Earth Sciences.

NAC 2021 will be held Online on 08 April 2021 & 09 April 2021.

About NAC 2021

The NAC conferences (Nederlands Aardwetenschappelijk Congres) bring together all fields of research within the Earth Sciences. The NAC conferences aim to provide a true interdisciplinary forum for discussion and for young researchers to present their results in a way that is accessible to a broad audience. NAC 2021 will be organised and sponsored by the Domain Science of the Dutch Research Council NWO.

This is the 17th time the NAC is being organised.​ In 1992 NAC was founded by KNAW, KNGMG and NWO.  

Videorecordings of NAC 2021 still available for participants.

We thank the participants very much for attending the first online and 17th Netherlands Earth Sciences Conference NAC 2021. For the participants who have missed certain presentations, the video recordings of most of the programme are now available on the NAC online platform: nacgeolive.nlthe NAC virtual conference centre. These recordings include the keynotes, parallel session presentations, several workshops, and of course the award ceremonies. The posters are available for viewing too. Note that the online platform remains accessible until the 1st of June. You can login with your email username and password to access the platform.

NAC 2022: save the date!

The 18th editon of the NAC shall be held on March 10 & 11, 2022, again in Utrecht. Details will follow in due course. In the meantime, do enjoy NAC 2021 or alternatively the above photograph of Weathered dolerites & quiver trees - Mesosaur fossil bush camp (Spitzkop farm, Keetmanshoop, Namibia). "Imagine Father James (‘Vader Jacob’) played on these dolerite ‘figures” which are part of the Paraná-Etendeka related giant dyke swarms, locally also known as the Giant’s Playground." wrote Els Ufkes  (VU Amsterdam) when she submitted this photo to the NAC 2019 photo competition. 


The Programme Committee of NAC 2021 is tasked with compiling a broadly appealing programme. Contributions will be scheduled as oral presentations that take place in parallel sessions spread over the two days of the congress. In addition there will be dedicated poster sessions each day, with ample time during the programme for visiting the posters.


Based on the keywords selected during submission of abstracts (see list below), the total number of abstracts and the topics submitted, the Programme Committee will arrange the abstracts into broader overarching parallel sessions. The themes of these parallel sessions will e.g. focus on specific or timely issues in the field of Earth Sciences, or they can aggregate contributions with a methodological or topical similarity. The committee will then decide if an abstract is accepted as an oral or poster presentation within one of those sessions. As the conference will be an interdisciplinary meeting ground for geoscientists, this procedure aims at encouraging researchers from all fields in Earth Sciences to connect, interact and present their progress of research. 

How to submit an abstract

You will have to register first. Please select the option ‘yes’ under ‘submit abstract’. You will receive a unique link by email after you have completed the registration process. This link can be used to login and submit your abstract. Abstracts (max. 250 words) can be submitted not later than Wednesday 27 January 2021, 23:59 h CET. Please note that the official language of the conference and for submitting abstracts and giving oral and poster presentations will be English. 


The Programme Committee will define the themes of the parallel sessions and compile the conference programme based on the abstracts received before Wednesday 27 January 2021, 23:59 h CET. From all received abstracts, a selection of authors will be invited to give an oral presentation. By default, authors of the other abstracts will be offered the option of a poster presentation. In February 2021 the final program will be announced on the website and applicants will receive an invitation with instructions for preparing their online oral or poster presentations.

Instructions for oral presentations

Oral presentations are scheduled in parallel sessions spread over the two days of the congress. Authors are allotted 15 minutes for their presentation, including time for questions and discussion. More details about the digital format for the presentations will follow upon selection.

Instructions for scientific poster design

At the NAC you will have an excellent opportunity to practise your academic skills, such as giving poster presentations and poster pitches. Your poster will be visible in an online format. This year we will ask you to submit your poster prior to the conference. A poster prize will be awarded to the three best posters made by early-career scientists. 

Your poster session will only be visible to the participants if you upload a pdf form your poster.

Published virtual poster presentations will be viewable and searchable via an online gallery, before, during and after the NAC congress extending the life of your presentation.

For your poster presentation:

  • Your posters session will take 30 minutes in total. All participants are free to join during these sessions. Please join your sessions 15 minutes before the start. Your sessions will be visible on the platform, join your own session via the platform.
  • You will not receive a separate link for your session. You enter your session via the platform, same as the participants.
  • make sure that you have a portrait orientated pdf
  • (this is optional) we recommend to share the link of a youtube/vimeo video of a 2 minute pitch of your poster.
  • PDF – can best be portrait and <5MB.

Abstract keywords

We welcome contributions from all branches of the Earth Sciences. Abstracts can be submitted using one or two the following keywords:


During the conference various prizes will be awarded.  On Thursday April 8, 2021 the Vening Meinesz Prize 2020 ceremony shall be held. This ceremony should have been held at the NAC 2020, however, because of the COVID-19 situation, the ceremony was cancelled.  On Friday April 9, 2021, the KNGMG will award its Escher- & Jelgersma Prizes to young talented earth scientists, whereas the Netherlands Journal of Geosciences will announce the NJG publication prize.  Furthermore, the Athena Award 2020 ceremony will be held. The Athena Award rewards female researchers that stand out, and because of that are role models for others.









Keynote speakers

We are honoured to announce that the following renowned speakers have confirmed their contribution to NAC 2021.

Dr. Anne Pluymakers

Dr. Anne Pluymakers

TU Delft

Assistant Professor in Experimental Fluid-Rock Interaction in the Department of Geoscience and Engineering at TU Delft. Specialized in experimental rock mechanics, specifically fluid-rock interaction and effects on subsurface energy and storage.

Dr. Karin van der Wiel

Dr. Karin van der Wiel


Climate scientist at KNMI's weather and climate modelling department. Contributing to the development of the newest KNMI climate scenario's. Furthermore researching topics like climate variability and extreme weather, and communicating climate science widely.

Dr. Sjoerd Groeskamp

Dr. Sjoerd Groeskamp


Researcher at NIOZ department of Ocean System. Studies ocean water masses and mixing processes that determine our climate and the state of the ocean. Concerned about climate change. Mostly lived on islands: Tasmania, Manhattan, “Sydney Australia” and Texel.

Dr. Tim van Emmerik

Dr. Tim van Emmerik

Wageningen University & Research

Assistant Professor Hydrologic Sensing at Wageningen University & Research. Works on developing river plastic monitoring methods and strategies in Europe, Asia and Africa. Passionate about data collection in challenging places.

Prof. Anne Schulp

Prof. Anne Schulp

Utrecht University, Naturalis

Professor in Vertebrate Paleontology in the Department of Earth Sciences. Studied marine reptiles (mosasaurs) from the Maastricht Formation and works at the Naturalis Biodiversity Centre with a special interest in reptiles from the Age of Dinosaurs.

Prof. Henk Scholten

Prof. Henk Scholten

Geodan & VU Amsterdam

In 1985 one of the founders of Geodan BV and now Director Innovation. Last few years lead scientist at JRC (Italy) on the role of Government on the digitalization of our world. Also Professor in Spatial Informatics at the VU Amsterdam.


What to expect from the first online edition of NAC 2021? No less than six inspiring keynote lectures, almost 100 interesting parallel presentations, posters, workshops and a whole lot more! Please check out the full programme of 8 and 9 April below.

Programme 8 April Programme 9 April


A small fee of € 15,- will be charged to attend NAC 2021. It is possible to pay by iDEAL.

  • 2 days

NAC 2021 registration is not open.

The registration period is from 17 December 2020 until 05 April 2021.

Photo competition

At NAC there will be a photo competition. Every participant in NAC 2021 can submit one photo on any theme related to the broad field of earth sciences. To submit a photo for the competition, one must be registered for NAC 2021 (see terms and conditions). Submitted photos will be exhibited at the conference.

View all submitted photo's


We would like to thank our exhibitors for their dedication and support to NAC 2021. They have made this event possible.