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Postdoc Data Assimilation at High Resolution to Exploit Nitrogen Chemical Compound Observations from Space in the Netherlands

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    Delft University of Technology (TU Delft)
    Recognised Researcher (R2)
    21/05/2021 01:59 - Europe/Brussels
    Netherlands › Delft


The successful candidate will work on the assimilation of the satellite observations from Tropomi (Tropospheric Monitoring Instrument), which was launched on ESA's Sentinel-5 precursor satellite in October 2017 as part of the EU Copernicus Earth observation programme, the NASA CrIS instrument and the European series of IASI instruments. Both nitrogen dioxide (NO2) and ammonia (NH3) observations from space will be used.

After establishing the interface between the high-resolution KNMI weather forecast model HARMONIE and the Dutch national air quality model LOTOS-EUROS, modifications will be made in Lotos-Euros to the existing ensemble Kalman filter (LETKF) in close cooperation with TNO Utrecht and other partners. The potential for improvements is investigated to the existing observation operators to assimilate the observations of nitrogen compounds from TROPOMI, CrIS and IASI. Different combinations of satellite data and surface network measurements will be assimilated to study the added value of the satellite measurements. Tools will be developed for performing OSSEs (Observing System Simulation Experiments), also for the benefit of future satellite mission concepts such as NITROSAT.

This project is funded by the Netherlands Space Office. It will be carried out in close collaboration with KNMI for their expertise on Tropomi data and Harmonie model, and further with two postdocs at the partner universities of Free University of Amsterdam (VU) and Wageningen University and Research (WUR). The project is part of the newly established science network on Air Quality research in The Netherlands including universities, national knowledge institutions like KNMI, TNO and RIVM, and other partners in the field of Air Quality research in the Netherlands.

More Information


Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities. Duration of contract is 1 year with possible extension up to a maximum of 29 months. The TU Delft offers a customisable compensation package, a discount on health insurance and sport memberships, and a monthly work costs contribution. Flexible work schedules can be arranged.

For international applicants we offer the Coming to Delft Service and Partner Career Advice to assist you with your relocation. An International Children's Centre offers childcare and there is an international primary school.

Selection process

Are you interested in this vacancy? Please apply before 20 May via the application button and upload your motivation, detailed CV and abstract of your PhD thesis (1 page).

  • You can apply online. We will not process applications sent by email and/or post.
  • A pre-Employment screening can be part of the selection procedure.
  • Acquisition in response to this vacancy is not appreciated.

Additional comments

For more information about this vacancy, please contact dr. J.P. Veefkind email: j.p.veefkind@tudelft.nl.

Web site for additional job details

Offer Requirements

Specific Requirements

If you want to be part of a unique team project team working from TU Delft and KNMI, using state-of-the-art satellite data of the atmospheric composition in order to foster the use of satellite observations in the Netherlands, and you fulfill the requirements below, please apply.

  • PhD in Mathematics, Physics, Meteorology, Fluid Dynamics, or similar field;
  • Affinity with atmospheric modelling and data assimilation techniques;
  • Strong programming skills (Fortran, Python or similar);
  • Ability to work independently, to critically assess own results and to cooperate within a wider research team;
  • Good reporting and presentation skills;
  • Excellent level of written and spoken English.

Work location(s)
1 position(s) available at
Delft University of Technology
2628 CD
Mekelweg 2

EURAXESS offer ID: 630888
Posting organisation offer ID: 299814


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