• Regional climate information
  • Large scale climate dynamics and change
  • Climate modelling
  • Tropical and post-tropical cyclones
  • Droughts

Qualifications and experience

  • 1989: PhD Instability Mechanisms in a Barotropic Atmosphere Free University of Amsterdam
  • 1981-2021: Climate scientist at the KNMI
  • 2018-2021: Lead Author of IPCC AR6 WGI
  • 1989-1990: Member of IPCC working group I at the Hadley Centre, UK
  • August 2002 – August 2003: Visiting professor at the oceanographic institute of the University of Sao Paulo, Brazil
  • 2006 March-June: Visiting professor at the oceanographic institute of the University of Sao Paulo, Brazil
  • Courses for forecasters on tropical meteorology and numerical modelling
  • Member of scientific review panels for BELSPO (Belgium), DEKLIM (Germany) and Research Council of Norway
  • Participation in European research programs
  • Supervisor of Master and PhD students


Climate model development

Contribution to the development of the following climate models

  • EC-Bilt

Opsteegh, J. D., Haarsma, R. J., Selten, F. M., & Kattenberg, A. (1998). ECBILT: A dynamic alternative to mixed boundary conditions in ocean models. Tellus A: Dynamic Meteorology and Oceanography, 50(3), 348-367.


Goosse, H., Brovkin, V., Fichefet, T., Haarsma, R., Huybrechts, P., Jongma, J., … & Weber, S. L. (2010). Description of the Earth system model of intermediate complexity LOVECLIM version 1.2. Geoscientific Model Development, 3(2), 603-633.


Hazeleger, W., C. Severijns, R.J. Haarsma, F.M. Selten and A. Sterl,   (2003):  SPEEDO – Model description and validation of a flexible coupled model for climate studies. Technical report; TR-257, KNMI, The Netherlands. 38 pages.

  • EC-Earth3P

Haarsma, R., Acosta, M., Bakhshi, R., Bretonnière, P.-A., Caron, L.-P., Castrillo, M., Corti, S., Davini, P., Exarchou, E., Fabiano, F., Fladrich, U., Fuentes Franco, R., García-Serrano, J., von Hardenberg, J., Koenigk, T., Levine, X., Meccia, V. L., van Noije, T., van den Oord, G., Palmeiro, F. M., Rodrigo, M., Ruprich-Robert, Y., Le Sager, P., Tourigny, E., Wang, S., van Weele, M., and Wyser, K.: HighResMIP versions of EC-Earth: EC-Earth3P and EC-Earth3P-HR – description, model computational performance and basic validation, Geosci. Model Dev., 13, 3507–3527, 2020.

Media contacts

NPO, RTL4, BNN, RTV-Utrecht, NRC, Volkskrant, AD, NEMO, FTM (Follow the Money), Bonaire TV, The Conversation, New Scientist, Newsweek

Contribution regional climate information reports

  • KNMI Klimaat Signaal ’21
  • KNMI Klimaat Scenarios ’23 (In preparation)
  • Brazilian climate reports

Short list of key publications

Haarsma, R. J., Roberts, M. J., Vidale, P. L., Senior, C. A., Bellucci, A., Bao, Q., … & Storch, J. S. V. (2016). High resolution model intercomparison project (HighResMIP v1. 0) for CMIP6. Geoscientific Model Development, 9(11), 4185-4208.

Haarsma, R. J., Hazeleger, W., Severijns, C., De Vries, H., Sterl, A., Bintanja, R., … & van den Brink, H. W. (2013). More hurricanes to hit western Europe due to global warming. Geophysical Research Letters, 40(9), 1783-1788.

Haarsma, R. J., Selten, F., Hurk, B. V., Hazeleger, W., & Wang, X. (2009). Drier Mediterranean soils due to greenhouse warming bring easterly winds over summertime central Europe. Geophysical research letters, 36(4).

Haarsma, R. J., Selten, F. M., & Drijfhout, S. S. (2015). Decelerating Atlantic meridional overturning circulation main cause of future west European summer atmospheric circulation changes. Environmental Research Letters, 10(9), 094007.

Haarsma, R. J., García-Serrano, J., Prodhomme, C., Bellprat, O., Davini, P., & Drijfhout, S. (2019). Sensitivity of winter North Atlantic-European climate to resolved atmosphere and ocean dynamics. Scientific reports, 9(1), 1-8.

Haarsma, R. J., Selten, F. M., Weber, S. L., & Kliphuis, M. (2005). Sahel rainfall variability and response to greenhouse warming. Geophysical Research Letters, 32(17).