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Master thesis on Heavy precipitation events in a future climate

The Dutch Ministry of Infrastructure and Water Management

  • Stand­plaats De Bilt
  • Uren per week 40
  • Vergoeding €616
  • Niveau Master/doctoraal
  • Vakgebied Onderzoek / wetenschap
  • Reageren voor 31 oktober Nog 10 dagen
  • Vacaturenummer Stage KNMI 2019-01
  • Plaatsingsdatum 27 september 2019
  • Dienst­verband Afstudeerstage / scriptie

Functie­omschrijving

KNMI investigates how global climate change will impact the Netherlands. Global climate models (GCMs) provide the background information, but due to their coarse horizontal resolution (˜ 50 km), they are not suitable to study small-scale processes and their change, like thunderstorms or wind gusts. To investigate such processes, the output from GCMs is dynamically downscaled using a high-resolution regional climate model (RCM). The lateral boundary conditions for the RCM run are taken from a GCM, but away from the boundaries the RCM is free to evolve according to its own physics.

As the RCM we have used Harmonie, the high-resolution (2.5 km) weather model that is used operationally at KNMI. Several 10-year runs have been performed with boundary conditions taken from the EC-Earth GCM for different periods in the future.

Among others, we are interested in wind gusts accompanying convective systems and their change in a changing climate. Wind gusts are a very localized phenomenon that can cause great damage. Convection is not resolved in GCMs, but parameterized.

We are interested in two main questions:

1. How do convection-induced wind gusts change in a warming climate? This question can be answered by comparing Harmonie output from the different runs mentioned above.
2. EC-Earth output contains variables that indicate wind gusts. How reliable are they? Can the results from point 1 be reproduced using EC-Earth output?

Functie-eisen

Some background knowledge of the following topics can do no harm, but you will have ample opportunity to learn the rest while working on your thesis.

    • basic knowledge of atmospheric dynamics and physics (What causes convection and wind
gusts?)
    • handling of large data sets. (The Harmonie output consists of several TB per run.)
    • programming skills (python, R, Linux) for analysis and plotting 
    • statistics (mean, variability, aggregation, uncertainty, ...)

Arbeids­voorwaarden

  • Dienst­verband Afstudeerstage / scriptie
  • Minimaal aantal uren per week 40
  • Maximaal aantal uren per week 40

Overige arbeids­voorwaarden

De stagevergoeding van € 616,- per maand is gebaseerd op een 40-urige werkweek.

Bijzonderheden

Start date and duration of the Internship can be discussed.

The Dutch Ministry of Infrastructure and Water Management

The Dutch Ministry of Infrastructure and Water Management is committed to improving quality of life, access and mobility in a clean, safe and sustainable environment. The Ministry strives to create and maintain an efficient network of roads, railways, waterways and airways, effective water management to protect against flooding, and improved air and water quality.

The department Research and Development of Weather and Climate models (RDWK) investigates and develops research tools for weather and air quality prediction applications and climate models. We work on detailed physical processes, data assimilation, long term climate projections and practical applications including storm surge forecasts and statistics of extremes. RDWK participates in a number of international projects directed towards a variety of weather and climate related research and development areas and acts as the Netherlands Focal Point to the IPCC.

Contactpersonen

Voor meer informatie over deze vacature:

De heer dr. A.K.A. Sterl

+31 302-206766

Solliciteren?

Digitaal solliciteren

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