March 2016
Message 14

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[Met-jobs] PhD position at the University of Cologne - Fast responses of boundary-layer clouds to climate change

From Roel Neggers <>
Date Fri, 4 Mar 2016 09:47:51 +0100

The Institute for Geophysics and Meteorology, University of Cologne (IGMK), Germany, invites
applications for a

  * Research Assistant position with the opportunity for graduation *

The position is related to the High Definition of Clouds and Precipitation for Climate Prediction
HD(CP) 2 project ( ) that will start its second phase in Spring 2016. In this phase the
scientific tools developed during Phase I, including a high-resolution version of the ICON model and a
comprehensive observational data base, will be exploited to investigate the role of clouds in climate
change. The position (at least 65% TV‐L E13) is awarded for 3 years. We offer a productive and
interdisciplinary working environment including comprehensive supervision and integration into the
Graduate School of Geosciences (GSGS; ).

Cloud-climate feedbacks cause significant uncertainty in numerical predictions of future climate. Fast
responses of low clouds to climate change play a key role in this process. The aim of this project is to
increase our understanding of these fast responses, and to improve their representation in climate
models. To this purpose Large-Eddy Simulations (LES) will be performed of low-level clouds in the
subtropical North-Eastern Atlantic under elevated moisture layers, as observed by the High Altitude
and LOng range research aircraft ( HALO) during the recent Next-generation Aircraft Remote-sensing
for VALidation Studies (NARVAL) campaign. These cases can be interpreted as a present-day proxy of
the radiative impact of CO 2 perturbations in a future climate. The LES will thus serve as a high-
resolution virtual laboratory for investigating these cases. New insights will be represented in
parameterizations for the ICON model. For more information please contact Prof. Dr. Roel A. J.
Neggers: neggers[at]

We seek candidates with:
  * A Master-of-Science-equivalent university degree in meteorology, geophysics, physics or mathematics
  * A keen interest in atmospheric science, with a focus on convective boundary layer clouds
  * Interest in fine-scale numerical simulation on supercomputers
  * Excellent experience in scientific programming, preferably in a UNIX/LINUX environment
  * Good communication skills in both written and spoken English
  * Willingness to visit scientific conferences and workshops

Interested candidates should send a CV; a cover letter describing background, training and research
interests; certificates; and the contact information of two referees as a single PDF to meteo-
jobs[at]uni‐ Review of applications will begin immediately and continue until the positions
have been filled. Application deadline is 28 March 2016.

The selection for the positions will be based solely on merit without regard to gender, religion,
national origin, political affiliation, marital or family status or other differences. Among equally
qualified candidates, handicapped candidates will be given preference.

Institute for Geophysics and Meteorology, University of Cologne
Albertus-Magnus-Platz, 50923 Köln, Germany

Prof. Dr. Roel A. J. Neggers
Institute for Geophysics and Meteorology
University of Cologne
Pohligstr. 3
50969 Cologne
Tel      : +49 221 470 1614
Email    :
Internet :

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