|From||"Meerkoetter, Ralf" <email@example.com>|
|Date||Thu, 27 Sep 2012 13:52:04 +0200|
The life cycle of cirrus clouds from measurements of the satellites Meteosat and EarthCARE Your mission Cirrus clouds play an important role for climate since they affect the Earth's radiation budget. The physical processes that govern their life cycle are still poorly understood, as is their representation in climate models. This work aims to improve the knowledge about the temporal evolution of cirrus clouds by retrieving and analyzing cirrus cloud properties from a combination of active and passive sensors aboard polar orbiting and geostationary satellites. The Spinning Enhanced Visible and Infrared Imager SEVIRI aboard the geostationary Meteosat Second Generation satellites, with its 12 spectral channels and its high temporal resolution of 15 min, enables the investigation of the life cycle of cirrus clouds. However, in order to infer the vertical structure of clouds, this data must be complemented with measurements from active sensors like those of the upcoming ESA EarthCARE mission scheduled for 2015. In preparation for the exploitation of EarthCARE, data from the current A-Train are available which comprises a similar suite of instruments. The successful candidate shall extend our SEVIRI retrievals of ice cloud altitude and ice cloud optical thickness to the determination of ice water path, ice crystal effective particle radius as well as outgoing longwave and reflected shortwave radiation. The temporal evolution of the physical and optical properties derived from SEVIRI for selected cirrus cloud classes shall be investigated in conjunction with the A-Train products in order to understand the physical processes that govern their life cycle. Further insight into cirrus life cycle processes may be gained by a comparative analysis of additional satellite measurements and numerical model simulations of cirrus cloud evolution. Your Qualification- Good knowledge and experience in the area of satellite remote sensing and/or atmospheric radiative transfer
- Masters/diploma in physics or meteorology - Fluent in spoken and written English- Computer skills: LINUX, UNIX, MS-Office, at least familiar with one of the high level computer languages usually employed in natural science.
- Ability to communicate and to work in a team Your benefits: Look forward to a fulfilling job with an employer who appreciates your commitment and supports your personal and professional development. Disabled applicants with equivalent qualifications will be given preferential treatment. Start: immediately, Duration: limited to 3 years, Salary: in accordance to tariff part TvöD 13 (50%), Level of employment: full-time, DLR-Site: Oberpfaffenhofen, Institute of Atmospheric Physics Applications including all relevant documents should be sent to: Dr. Ralf Meerkötter DLR-Institut für Physik der Atmosphäre, Oberpfaffenhofen, D-82234 Wessling, Germany Tel: +49-8153-28-2535 Fax: +49-8153-28-1841 email: firstname.lastname@example.org http://www.dlr.de/ipa/
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