March 2011
Message 2

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[Met-jobs] Ph.D. position at IMK, Karlsruhe Institute of Technology (KIT)

From Christoph Dyroff <>
Cc Christoph Dyroff <>
Date Mon, 28 Feb 2011 15:49:34 +0100

Please forward the following job advertisement to met-jobs mailing list:

Isotope ratio measurements of water vapor aboard research aircraft by means of high precision laser spectroscopy

Topic Summary:
Water (H2O) — being the sole gas existing in all three states of aggregation in the atmosphere — constitutes an enormously crucial trace gas. As a very efficient absorber of infrared radiation, it is responsible for ~2/3 of the natural greenhouse effect of ~33°C. Moreover, the proper description of the occurrence of clouds and of their microphysical properties is actually the major shortcoming of today’s climate models.

One exciting and elegant technique to study the many atmospheric processes, in which water is involved, is the in situ measurement of the isotope ratios D/H and 18O/16O of water vapor onboard aircraft. The successful applicant will help to set up a tunable diode laser absorption spectrometer (TDLAS) for measurement of the D/H and 18O/16O isotope ratios in water. This instrument will be based on a previous prototype developed at the Institute of Meteorology and Climate Research (IMK-ASF), but shall be enhanced in detailed aspects.

The spectrometer is scheduled to be deployed during a number of research campaigns on board the German high altitude research aircraft HALO (Gulfstream GV-550). Furthermore, two dedicated research campaigns within the framework of the European project MUSICA (coordinated at KIT) will be conducted around the Canary Islands in order to validate local ground-based remote-sensing measurements. The data gathered during the field campaigns shall be analyzed and interpreted. The results are expected to be published in international peer-reviewed journals.

The position involves multi-disciplinary research with a high degree of work autonomy, and the use of the latest technical equipment.

Personal Qualification:
The candidate needs a university degree in Physics or a related discipline. He/she is expected to be self-motivated and enthusiastic about instrument development and conducting measurements onboard aircraft. The candidate will also be involved in interpretation of data gathered during measurement campaigns. Interest in engineering physics and basic programming skills are required. Good communication skills in English are expected. Experience in either atmospheric research or (laser) spectroscopy are of advantage, but not required. Further information about the working group (TOP) at IMK-ASF may be found at:

Institute of Meteorology and Climate Research (IMK-ASF), Karlsruhe Institute of Technology

Contract Duration:
limited to 3 years

Application up to:

Dr. Christoph Dyroff, Email:

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