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Influence of the surface on the atmospheric circulation of Mars
(Univ. Zugl.: Braunschweig, 2007)
Unlike on Earth where 3/4 of the surface is covered by oceans, the Martian surface has rougher topography with greater magnitudes of mountains and valleys. The Martian atmosphere is less dense compared to the terrestrial ...
Stability of flat galaxies
(2008)
In this thesis we investigate the existence and properties of stationary solutions of the flat Vlasov-Poisson system. This system of partial differential equations can be used as a model of extremely flat astronomical ...
Sand dunes on mars and on earth
(Univ. Stuttgart, 2007)
In this work the dune model introduced by Sauermann et al. (2001) is extended and applied to investigate the formation of different dune shapes on Mars and on Earth as function of wind directionality and sand availability. ...
Measurement of the proton air cross section using hybrid data of the Pierre Auger Observatory
(Univ. Karlsruhe, 2008)
Non-analytical line profiles in stellar atmospheres
(Univ. Hamburg, 2008)
In this work, nonanalytical line profiles for both cool and hot, dense atmospheres are added to the opacity calculations of the multipurpose stellar atmosphere code PHOENIX. Their influence on model atmospheres and synthetic ...
Georadar for small-scale high-resolution dielectric property and water content determination of soils
(Univ. Berlin, 2007)
To understand processes and dynamics linked to the volumetric water content of soils thorough knowledge of the water distribution inside soils is required. The applicability of the georadar technique for small scale soil ...
Spectral mixture analysis for monitoring and mapping desertification processes in semi-arid areas in North Kordofan State, Sudan
(Univ. Dresden, 2007)
One of the most important recently issues facing Sudan as well as sub-Sahara Africa is the threat of continued land degradation and desertification, as result of climatic factors and human activities. Remote sensing and ...
Kathodolumineszenz in der Planetologie
(Univ. Münster (Westfalen), 2002)
Die Entwicklung eines hochempfindlichen mikrospektroskopischen Systems unter Verwendung von optimal abgestimmten Komponenten ermöglichte eine effiziente Aufnahme der zum Teil sehr schwachen Lumineszenz verschiedener Minerale, ...
An innovative seismic risk assessment method and implications of strain rate-dependency on risk estimates
(2006)
Eine probabilistische Methodologie zur Abschätzung des Erdbebenrisikos bei den bestehenden Gebäuden wurde präsentiert. Diese Methodologie erfasst Analysen der Erdbebengefährdung, der Bauwerksantwort, der Bauwerkschaden und ...
Trennbruchversagen von Festgesteinen unter triaxialen Spannungsbedingungen
(Univ. Halle, 2007)
Im Konturbereich einer untertägigen Auffahrung kommt dem Spannungsregime Extension aufgrund der Reduzierung des Spannungsanteils normal zur freien Oberfläche besondere Bedeutung zu. Die damit im Zusammenhang stehenden ...