Dr. Erkens graduated from the Free University Amsterdam in Quaternary Geology (M.Sc.) in 2003. In 2009, he earned his PhD-degree at Utrecht University, The Netherlands, on sediment dynamics in the Rhine catchment. In 2011, he joined the research institute Deltares and started to work on subsidence in coastal lowlands in an international context. Since 2014, he is a part-time adjunct assistant professor at Utrecht University in Physical Geography and subsidence.
During his time at Deltares Research Institute, he specialized further on the subject of subsidence, foremost on the contribution of oxidation and compaction of peat on land level lowering. Dr. Erkens is now the chair of the subsidence team at Deltares Research Institute. Over the years, Dr Erkens worked on projects in Kalimantan and Java (Indonesia), Louisiana (USA), Siberia (Russia), Rhine Valley (Germany), Rhine-Meuse delta (The Netherlands), Rondônia (Brazil), Connecticut (USA), Mekong Delta (Vietnam). He has published his results in more than 20 peer-reviewed papers in international journals.
Outreach is particularly important for Dr Erkens, as he enjoys telling the subsidence story to non-experts. He has contributed to over 250 news items, ranging from TV and radio interviews, to contributions to web-content. These include contributions to news organizations such as the BBC, The Economist, National Geographic, TRT, The Guardian, Lloyd’s, The Huffington Post, The Strait Times, and Der Spiegel.
- Van Asselen, S., Erkens, G., Stouthamer, E., Woolderink, H.A.G., Geeraert, R.E.E., Hefting, M.M.,The relative contribution of peat compaction and oxidation to subsidence in built-up areas in the Rhine-Meuse delta, The Netherlands, Science of the Total Environment, 636, 177-191, 2018.
- Minderhoud, P.S.J., Erkens, G., Pham, V.H., Bui, V.T., Erban, L., Kooi, H., Stouthamer, E., Impacts of 25 years of groundwater extraction on subsidence in the Mekong delta, Vietnam, Environmental Research Letters, 12(6), #064006, 2017.
- Erkens, G., Van der Meulen, M.J., Middelkoop, H., Double trouble: Subsidence and CO2 respiration due to 1,000 years of Dutch coastal peatland cultivation, Hydrogeology Journal, 24(3), 551-568, 2016.
- Koster, K., Erkens, G., Zwanenbrug, C.,A new soil mechanics approach to quantify and predict land subsidence by peat compaction, Geophysical Research Letters, 43(20), 10792-10799, 2016.
- Schmidt, C.W., Erkens, G., Brinkman, J.J., Bierkens, M., Syvitski, J., Stouthamer, E., Rogers, K., Oude Essink, G., Lorphensri, O., Vuong, B.T., Delta subsidence: an imminent threat to coastal populations, Environmental Health Perspectives, 123(8), A204-A209, 2015.
- Erkens, G., Bucx, T., Dam, R., De Lange, G., Lambert, J., Sinking coastal cities, Proc. IAHS, 372, 189–198, 2015.