- Since 1996 research focus on atmospheric remote sensing from space and exploitation for climate research. Foundation (1996) and direction of the Atmospheric Remote Sensing and Climate System (ARSCliSys) Research Group (about 15 scientists), later foundation (2003-2004) and direction (since 2005) of the Wegener Center for Climate and Global Change (WEGC) including ARSCliSys and other partner research groups (about 40 scientists).
Atmospheric remote sensing interests include occultation methods (like GNSS radio occultation and LEO-LEO occultation) and other coherent-signal and spectroradiometric methods (in infrared and microwave), with the main aim to conceive and advance methods and algorithms and to provide optimal climate utility of such data. Since 2006 also complementary interests in ground-based methods with very high resolution for climate applications (e.g., realization of the WegenerNet climate station network).
Climate interests include analysis of atmospheric change, validation and improvement of climate modeling by accurate observational constraints (climate benchmark data), climate change detection and attribution, integrated climate analysis from global to local scale, quantitative coupling of climate change, impacts, vulnerability, adaptation, and mitigation.
Methodological interests behind include advanced physical and statistical modeling, including forward and inverse modeling as well as data assimilation, for simulations and optimal estimation in complex systems (e.g., parts of the climate-socio-economic system).
(See also the lists of written and oral publications from about 1996 onwards.)
- Before 1996 (since 1988, with focus until 1995) research focus was on the physics of the upper atmosphere including as main topical areas ionosphere-thermosphere interactions, gravity waves and their ionospheric signatures, high-resolution ionospheric weather modeling, 3D modeling of the ionosphere-plasmasphere system, and ionospheric tomography.
(See also the lists of written and oral publications until about 1996.)
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