Dear all,
The Institute for Geophysics and Meteorology at Cologne (K€ öln) University, Germany is inviting applications for a PhD position in Meteorology. This position is within the project TOSCA (Towards an Optimal-estimation- based Snow Characterization Algorithm) funded by the German Science Foundation and it is available for a three-year period (starting as soon as possible). The goal of TOSCA is to develop methods
for profiling snowing and thick ice clouds by exploiting a suite of active and passive microwave sensors and additional measurements in two measurement configurations (one space-borne, the other ground-based) . This will create an unprecedented test-bed for evaluating microphysical schemes for cloud and precipitating ice within climate and NWP models, thus improving the understanding of the characteristics of mid-latitude winterly precipitation.
The successful applicant will work on the development of an optimal estimation technique for ground-based profiling of ice water content, but also particle size distribution mean size and habit for given environmental conditions, i.e. temperature and humidity profiles. Specifcally the theortical focus will be on deriving/applying a suited single scattering approximation for fast radiative transfer calculations, the determination of adequate microphysical a priori profiles and the combination of cloud radar, microwave radiometer, ceilometer and disdrometer measurements into a unified retrieval scheme. Additonally, the pratical part will comprise of setting up, performing and evaluating the measurements at the Environmental Research Station Schneefernerhaus (http://www.schneefe rnerhaus. de) located at the top of Germany in the Alps at 2650m during two dedicated measurement campaigns.
This work requires good computing skills and background in physics, meteorology, and/or atmospheric sciences. Any knowledge/skill in microwave radiative transfer, retrieval algorithm development, radar/radiometer data analysis or carrying out remote sensing measurements will be of advantage.
Salary: 50% Bat IIa (around 1000 € ’ /month, net)
Please send a cover letter and supporting documents (CV and documentation of your academic record including a list of publications, a short description of research interests, and possibly letters of recommendation) to Dr. Ulrich L€ öhnert, Institute for Meteorology and Geophysics, Cologne University, Z€ ülpicher Stra€ ße 49a, 50674 K€ öln, Germany or to loehnert@meteo. uni-koeln. de
An electronic copy of the TOSCA proposal with full details of the project is available at http://www.meteo. uni-koeln. de/crewell/ doku.php/ tosca
The closing date is May 30, 2007.
Best regards,
Ulrich L€ öhnert
[sursa beasiswa]
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