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    Bart van Stratum

    Professional (and personal) website


I am a scientist, mostly working on turbulent processes in the atmospheric boundary layer and urban environment, using (and developing) tools like large-eddy simulation and conceptual models.

After my meteorology study at the Wageningen University (Netherlands), I obtained my doctoral degree at the Max Planck Institute for Meteorology in Hamburg (Germany). I am currently working as a postdoctoral researcher at the Wageningen University, within the VIDI project The windy city. My work is focussed on implementing an immersed boundary method in MicroHH; a DNS/LES model that I co-developed.

Both professionaly and as a hobby, I enjoy programming and developing (meteorological) models. Over the years I have been involved in the development of several models, most notably the work on MicroHH and CLASS.


MicroHH is a computational fluid dynamics code, made for DNS and LES studies of turbulent flows in the atmosphere. The model was designed from scratch in C++, with the goal to create a a fast and highly parallel code, capable of running on >10000 CPU cores. In addition, it is capable of running on Graphical Processing Units (GPUs) using NVIDIA's CUDA-C language. The current version supports a wide variety of setups, ranging from neutral channel flows to cases with precipitating convection. The reference paper of MicroHH 1.0 is currently in review for GMD.


CLASS is a conceptual (mixed-layer) model intended to study the convective boundary layer, and its coupling to the soil, land-surface, chemistry, and clouds. It was developed as part of our book: Atmospheric Boundary Layer: Integrating Chemistry and Land Interactions.. We provide several versions, including an educational version with graphical user interface, and research versions written in Python and Fortran. More information is available on the CLASS website.


Scientific articles

  • C.C. van Heerwaarden, B.J.H. van Stratum, T. Heus, J.A. Gibbs, E. Fedorovich, J.P. Mellado (2017, in review): MicroHH 1.0: a computational fluid dynamics code for direct numerical simulation and large-eddy simulation of atmospheric boundary layer flows, Geosci. Model Dev. Discuss. (10.5194/gmd-2017-41).
  • B.J.H. van Stratum, B. Stevens (2015): The influence of misrepresenting the nocturnal boundary layer on idealized daytime convection in large-eddy simulation. J. Adv. Model. Earth Syst., 07 (10.1002/2014MS000370)
  • B.J.H. van Stratum, J. Vila-Guerau de Arellano, C.C. van Heerwaarden, H.G. Ouwersloot (2014): Sub-cloud layer feedbacks driven by the mass-flux of shallow cumulus convection over land. J. Atmos. Sci. 71, 881–895 (10.1175/JAS-D-13-0192.1)
  • H.G. Ouwersloot, J. Vila-Guerau de Arellano, B.J.H. van Stratum, M.C. Krol and J. Lelieveld (2013): Quantifying the transport of sub-cloud layer reactants by shallow cumulus clouds over amazonia. J. Geophys. Res-Atmos. 118, 13,041–13,059 (10.1002/2013JD020431)
  • B.J.H. van Stratum, J. Vila-Guerau de Arellano et al. (2012): Case study of the diurnal variability of chemically active species with respect to boundary layer dynamics during DOMINO. Atmos. Chem. Phys., 12 (12), 5329–5341 (10.5194/acp-12-5329-2012)


  • J. Vila-Guerau de Arellano, C.C. van Heerwaarden, B.J.H. van Stratum, K. van den Dries (2015): Atmospheric Boundary Layer: Integrating Chemistry and Land Interactions. Cambridge Univ. Press, ISBN 9781107090941 (website)


  • B.J.H. van Stratum, (2017). The influence of misrepresenting the nocturnal boundary layer on daytime convection in large-eddy simulation. PhD Thesis, Universität Hamburg, Hamburg (10.17617/2.2383650)

Curriculum vitae (short version)

Name: dr. Bart J.H. van Stratum, MSc. Born: 7 March 1984 in Maarheeze, Netherlands. Nationality: Dutch.

  • [2016-now]: Postdoctoral researcher, Wageningen University and Research, the Netherlands.
  • [2013-2016]: PhD, Max Planck Institute for Meteorology, Hamburg, Germany (magna cum laude).
  • [2010-2012]: MSc Earth and Environment (Meteorology and Air Quality), Wageningen University, the Netherlands. (cum laude; top 5%).
  • [2006-2010]: BSc Soil, Water and Atmosphere, Wageningen University, the Netherlands.

Skills: proficient in working with C/C++, CUDA-C, Fortran, Python, LaTeX, Linux, ...

Get in Touch with Me

My work page contains most of my contact information, including a contact form. You can also find me here: