Faculties of University Bonn: Search
Now showing items 191-200 of 211
Flooding in Dhaka, Bangladesh, and the challenge of climate change
(2018-02-16)
The country of Bangladesh is located in the Ganges-Brahmaputra-Meghna river delta, and faces multiple natural hazards, in particular flooding, and other challenges such as sea-level rise and a growing population. Dhaka, ...
2-D Anisotropic Inversion of Frequency-Domain Induced Polarization Data
(2018-03-23)
Measured data in IP (time or frequency domain) are usually interpreted with inversion algorithms, which may be based on stochastic or iterative schemes for finding an optimal data-associated model of the subsurface. Despite ...
Modelling the hydrological impact of rice intensification in inland valleys in Benin (West Africa)
(2018-01-25)
The aim of this study is to assess the impact of climate change and rice intensification on water availability, water quality, and rice production. A spatial explicit approach was developed to determine suitable areas for ...
Spatio-Temporal Estimation and Validation of Remotely Sensed Vegetation and Hydrological Fluxes in the Rur Catchment, Germany
(2018-03-07)
Operational availability of spatio-temporal vegetation and hydrological estimates are becoming increasingly attractive for hydrologic studies from local through regional and global scales, especially in remote areas and ...
A participatory multi-criteria approach for flood vulnerability assessment
(2018-09-14)
The management of flood risk calls for a better understanding of vulnerability, as hazards only become disasters if they impact a system that is vulnerable to their effects. Although different frameworks have been proposed ...
Crystal chemistry, melt composition and redox controls on the behavior of trace elements during lunar magmatism
(2018-12-12)
The behavior of trace elements in magmatic systems is controlled by physicochemical conditions prevalent during mantle partial melting and magmatic differentiation. Among these controlling factors are temperature, depth, ...
Land-atmosphere interactions in multiscale regional climate change simulations over Europe
(2018-12-12)
Interactions between the heterogenous land surface and the atmosphere play a fundamental role in the weather and climate system through their influence on the energy and water cycles. Global climate models (GCMs) currently ...
A Landsat-based analysis of tropical forest dynamics in the Central Ecuadorian Amazon: Patterns and causes of deforestation and reforestation
(2018-12-20)
Tropical deforestation constitutes a major threat to the Amazon rainforest. Monitoring forest dynamics is therefore necessary for sustainable management of forest resources in this region. However, cloudiness results in ...
Pore-Scale Modelling of Induced-Polarization Mechanisms in Geologic Materials
(2019-03-20)
This thesis is concerned with mechanistic pore-scale models, which relate the induced-polarization (IP) response of geologic materials to the underlying physical and chemical processes. Although a sound understanding of ...
Numerical investigations of heat and mass transport in fractured porous rock masses
(2019-01-08)
Fluid flow processes in the subsurface are accompanied by heat and mass transport with several important feedbacks including reactive flow, and precipitation/dissolution processes. Heat and mass transport through fractured ...