Internship | High resolution modeling of reactive nitrogen: the role of inorganic aerosol formation

Deposition of reactive nitrogen (Nr) species to nature areas is a hot topic in Dutch politics. To effectively assess the influence of measures to limit Nr-deposition from farms and other sources, we have been applying a high-resolution model (DALES) that simulates the emission, dispersion and deposition of ammonia (NH3), nitrogen oxides (NOx) and other reactive species with a resolution of 25 meters on the domain of several square kilometers. Recently, we expanded the model with a reaction mechanism that represents the main chemical transformations of reactive nitrogen in the atmosphere. In the atmosphere, these species can form aerosol particles which are transported and deposited over large distances. However, evaluation of the ability of the model to reproduce observations is essential to build trust in the capability to simulate the relevant processes.

In this internship, you will work on the validation of a DALES simulation that uses a gas-phase chemistry module to simulate the precursors for secondary inorganic aerosol formation. You will evaluate the capability of the model to represent the diurnal cycle of these gas-phase precursors , and assess which factors drive this variability. Detailed observational datasets including concentrations of NH3, NOx and SO2 are available to compare the simulations against.

We are looking for an enthusiastic, and curious student working on graduating from their masters with knowledge of meteorology and modeling. You should be willing to learn new technologies and are able to think through abstract concepts towards their practical implication.

You are working towards a master’s degree in meteorology or a related field. Some experience with modeling is required. Experience with large eddy simulation and with a scripting language (e.g. Python) is recommended.

You want to work on the precursor of your career; a work placement gives you an opportunity to take a good look at your prospective future employer. TNO goes a step further. It’s not just looking that interests us; you and your knowledge are essential to our innovation. That’s why we attach a great deal of value to your personal and professional development. You will, of course, be properly supervised during your work placement and be given the scope for you to get the best out of yourself. Naturally, we provide suitable work placement compensation.

At TNO, we innovate for a healthier, safer and more sustainable life. And for a strong economy. Since 1932, we have been making knowledge and technology available for the common good. We find each other in wonder and ingenuity. We are driven to push boundaries. There is all the space and support for your talent and ambition. You work with people who will challenge you: who inspire you and want to learn from you. Our state-of-the-art facilities are there to realize your vision. What you do at TNO matters: impact makes the difference. Because with every innovation you contribute to tomorrow’s world. Read more about TNO as an employer.

At TNO we encourage an inclusive work environment, where you can be yourself. Whatever your story and whatever unique qualities you bring to the table. It is by combining our unique strengths and perspectives that we are able to develop innovations that make a real difference in society. Want to know more? Read what steps we are taking in the area of diversity and inclusion.

After the first CV selection, the application process will be conducted by the concerning department. TNO will provide a suitable internship agreement. If you have any questions about this vacancy, you can contact the contact person mentioned below.

Students must reside in the Netherlands before the start and also throughout the internship or graduation project at TNO.