Die Schwerpunktthemen werden ausschließlich in englischer Sprache angeboten. Die entsprechenden Vorträge, Poster und Zusammenfassungen sind demnach auch in englisch.
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The shallow subsurface environment is an extremely important zone that yields much of our water resources and also serves as the repository for municipal, industrial and government waste. This subsurface zone also acts as a buffer and filter for contaminants introduced by agricultural and industrial activities. As safe and effective use of the subsurface environment is a major challenge facing our society, there is a great need to improve our understanding of the shallow subsurface. Management of the subsurface environment requires investigation methods that have both high accuracy and resolution across a variety of spatial scales. In this respect, a new discipline of hydrogeophysics has evolved, which aims at combining knowledge from various disciplines like hydrology, hydrogeology, soil physics and geophysics thereby striving to improve subsurface characterization and monitoring. Geophysical methods offer the advantage of being able to measure subsurface structures and to estimate flow and transport properties in a non-invasive and dynamic manner. The purpose of this section is to discuss recent developments within the emerging discipline of hydrogeophysics, including those associated with basic theory, geophysical instrumentation improvement, development of emerging technologies, geophysical data inversion approaches and joint inversion approaches aiming to fuse hydrological, hydrogeological and geophysical data, and development of petrophysical models relating geophysical, hydrological and geological parameters. We also solicit hydrogeophysical case studies that illustrate the potential, benefits, or limitations of hydrogeophysical investigations over a wide range of spatial and temporal scales in both the vadose zone and groundwater. This session should be of interest to researchers across a variety of disciplines, including those investigators who are interested in using geophysical methods and data for improved subsurface characterization and monitoring as well as those who are active in hydrogeophysical research.
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Symposium 2: Geothermal Energy
organised under the auspices of the International Heat Flow Commission of IASPEI
Geothermal energy can be used directly, e.g. for heating, cooling, and many
other direct uses. Direct conversion into electricity traditionally requires
high enthalpy steam fields. Binary cycles permit to convert also low to medium
enthalpy geothermal resources into electric energy. New technologies allow
to establish engineered geothermal systems by designed stimulation of high-temperature,
low-permeability bedrock.
We solicit contributions focusing in particular on scientific and technological methods for harnessing geothermal energy in regions lacking
natural steam reservoirs. We welcome in particular papers and posters for
Enhanced Geothermal Systems, but also for hydrothermal systems and deep and
shallow borehole heat exchangers.
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Symposium 3: High-Performance Computing in Geoscience
organised under the auspices of the Aachen Institute for Advanced Study in Computational Engineering Science (AICES)
Realistic models of phenomena in the Geosciences involve physical, chemical,
and biological processes on different scales ranging from smallest
structures to regional or global phenomena. The resulting computer
simulations require a large amount of computing time and storage. New
developments in computer science and mathematics have not sufficiently found
their way into all areas of geoscientific simulations. Therefore, this
symposium is meant as a forum to further strengthen the exchange of ideas
between computer scientists, mathematicians, and geoscientists.
The symposium is subdivided into the following two parts:
Techniques
- parallel, cluster and grid computing
- visualization
- performance analysis
Geoscientific Results
- tectonics
- seismology
- geodynamics
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Symposium 4: Sedimentary Basin Dynamics
Sedimentary basins are compartments of the upper crust in which mineral and organic material has accumulated over millions of years. This material undergoes partial transformation at temperatures ranging from 0° to 300°C and pressures up to approximately 100 MPa. Due to their longevity and high contents of chemically metastable components, sedimentary basins can be regarded as long-term reactors. The substance turnover and product composition of such a geo-reactor depends essentially on both externally and internally operating processes which affect the sedimentary basin fill over long geological periods. The main objective of this priority topic of the DGG meeting is to quantify the major processes that control or affect the formation and evolution of sedimentary basins, including the fluid inventory, using modern geoscientific methods. Processes of major interest are a) structure of the upper and lower crust as deduced from geophysical data, b) strain and stress in the upper crust leading to crustal extension and compression, c) evolution of fault zones, their influence on the crustal rheology and their effects on large scale and regional subsidence as well as on the geothermal field, d) inherent processes of a sedimentary system such as compaction, salt movement and fluid generation under the control of the external factors mentioned above, e) petrophysical properties and transport processes, their dependence on compaction, fault zones and the geothermal field as well as associated fluid-rock interactions, and f) the supply and redistribution of sedimentary matter acting as a mirror of tectonic activities and climate changes.
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Symposium 5: Scientific Drilling
Scientific drilling has become an invaluable tool in exploring geological structures and understanding physico-chemical processes at depth. Pre- and post-drilling geophysical and while-drilling borehole-geophysical methods offer a major contribution to the calibration and verification of surface models. We seek contributions that focus on the role of geophysical techniques in scientific drilling, such as – but not limited to – verification of results from geophysical pre-site surveys, impact of and progresses in borehole geophysics, findings from combined vertical and moving seismic profiling, inversion of stress and strain and rock properties from borehole geophysical data, handling of the scale problem between surface and borehole measurements, use of boreholes as deep observatories, and visions of advanced geophysical applications in future drilling projects.
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