Georg Kaufmann,
Douchko Romanov,
Ulrike Werban,
Prof. Dr. Thomas Vienken
Berechtigungen: Open Access
Berechtigungen: Peer Reviewed
The Münsterdorf sinkhole cluster: Void origin and mechanical failure (2023) Solid Earth, 14(3), 333-351 2023 , S. 333-351.
DOI: 10.5194/se-14-333-2023
Since 2004, collapse sinkholes occur on the sports field of Münsterdorf, a village north of Hamburg in Germany. The sinkholes, around 2–5 m in diameter and 3–5 m deep, develop in peri-glacial sand, which in around 20 m depth is underlain by cretaceous chalk. The chalk has been pushed up close to the surface by a salt diapir. The sinkhole formation initiated suddenly and occurs with a frequency of one every two years. We use a variety of geophysical results (e.g. gravity, electrical resistivity imaging, ground-penetrating radar) from previous field-work campaigns together with a new data set from direct-push based methods to infer mechanical and hydrological properties of the material beneath the sports field (peri-glacial sand, glacial marl, cretaceous chalk). Based on the derived material properties, we develop a mechanical model for the sinkhole collapse, starting from simple analytical considerations and then moving towards a three-dimensional distinct-element model explaining the sudden onset of collapse sinkholes for the sports field. The mechanical model supports our hypothesis that the sudden onset of sinkholes is triggered by changes in groundwater level.
Nele Grünenbaum,
Thomas Günther,
Janek Greskowiak,
Prof. Dr. Thomas Vienken,
Mike Müller-Petke,
Gudrun Massmann
Understanding the interaction of terrestrial freshwater and seawater in the subterranean estuary (STE) is an important factor when considering nutrient fluxes from land to sea. State-of-the-art research describes the STE by a tide-induced upper saline recirculation cell, a freshwater discharge tube and a deep saltwater wedge. However, recent numerical modelling and shallow hydrogeochemical investigations for high-energy beaches indicate that multiple saline recirculation cells may exist and affect the land-sea interaction. Electrical Resistivity Tomography (ERT) and Direct Push (DP) technologies are common tools to explore the subsurface. Due to their sensitivity to the electrical conductivity of pore water, they permit investigating the STE. This study combines ERT and DP to image the salinity distribution within the STE of a meso-tidal, high-energy beach. We actively incorporate the DP data into the ERT inversion and use geostatistical regularization for closing the resolution gap. For the first time, our experimental results confirm the existence of several 10–20 m deep reaching upper saline recirculation cells and corresponding brackish discharge locations generated by a pronounced runnel-ridge beach system in 2019, whereas in 2021 only a single cell was displayed for a flat topography at the time.
Mehr
Maria Chiara Lippera,
Ulrike Werban,
Prof. Dr. Thomas Vienken
Managed aquifer recharge (MAR) is an emerging approach to enhancing water storage capacity, improving water supply security and countering groundwater overexploitation. However, physical clogging, i.e. accumulation of suspended organic and inorganic solids within a sediment matrix, can lead to a significant reduction of infiltration rates and present difficulties in the functioning of MAR infrastructure. Clogging and subsequent reduction in infiltration capacity are often quantified based on monitoring data or field investigations, rather than on forecasts. Existing predictive models require specific parameterisation, making an application to heterogeneous sites, or under changing conditions, difficult. Hence, a generalised understanding of how intrusive fine particles distribute over depth during water recharge cycles for typical MAR infiltration basin sediments is needed to predict clogging susceptibility and clogging patterns already in the planning phase and before operation of MAR schemes. The study will contribute to operational reliability, deduce optimised management practices, and, ideally, reduce maintenance efforts. To achieve this goal, data from different soil-column clogging experiments are reviewed and complemented with experiments to establish a generally valid relationship for the vertical distribution of intrusive fines under consideration of the primary porous media’s and intruding particles’ characteristics. Obtained results allow for quantification of the amount of particles retained at the surface of the porous media, i.e. formation of a filter cake, a description of the distribution of fines over depth, and total clogging depth. Finally, the findings are applied to a real MAR case study site to showcase the quantification of clogging effects on recharge rates.
Mehr
Rudy Rossetto,
Alessio Barbagli,
Giovanna De Filippis,
Chiara Marchina,
Prof. Dr. Thomas Vienken,
Giorgio Mazzanti
Johannes Nordbeck,
Sebastian Bauer,
Andreas Dahmke,
Jens-Olaf Delfs,
Hugo Gomes,
Henok Hailemariam,
Constantin Kinias,
Kerstin Meier zu Beerentrup,
Thomas Nagel,
Christian Smirr,
Prof. Dr. Thomas Vienken,
Frank Wuttke,
Christof Beyer
Prof. Dr. Thomas Vienken,
Manuel Kreck,
Prof. Dr. Peter Dietrich
Berechtigungen: Open Access
Berechtigungen: Peer Reviewed
Monitoring the impact of intensive shallow geothermal energy use on groundwater temperatures in a residential neighborhood (2019) Geothermal Energy 7 .
DOI: 10.1186/s40517-019-0123-x
The use of shallow geothermal energy increasingly receives attention as a suitable alternative to fossil fuel-based space heating and cooling, warm water provision, as well as for seasonal heat storage throughout Europe. With the advent of shallow geothermal energy use on large scales, a vivid discussion of potential ecological and economic impacts has arisen but actual field data are scarce. An intensive groundwater temperature-monitoring program over a period of 3 years with consecutive measurements was, therefore, initiated at a residential neighborhood in the city of Cologne, Germany, under intense shallow geothermal use. The aim of the monitoring program was to overcome the existing data scarcity by pinpointing the effects of the intensive thermal use of the subsurface on groundwater temperatures and to foster understanding of urban groundwater temperature evolution. Results show that even though energy demands of the individual houses and energy extraction rates of the shallow geothermal systems were comparably small in this case, the accumulation of shallow geothermal users had a measurable impact on overall groundwater temperatures.
Boyan Meng,
Prof. Dr. Thomas Vienken,
Olaf Kolditz,
Haibing Shao
Berechtigungen: Open Access
Berechtigungen: Peer Reviewed
Modeling the local temperature response to intensive operation of ground source heat pump systems: A case study in Germany (2018) Energy Procedia 152 (6), S. 971-977.
DOI: 10.1016/j.egypro.2018.09.102
Georg Kaufmann,
Douchko Romanov,
Thomas Tippelt,
Prof. Dr. Thomas Vienken,
Ulrike Werban,
Prof. Dr. Peter Dietrich,
Franziska Mai,
Frank Börner
Berechtigungen: Peer Reviewed
Mapping and modelling of collapse sinkholes in soluble rock: The Münsterdorf site, northern Germany (2018) Journal of Applied Geophysics 154 , S. 64-80.
DOI: 10.1016/j.jappgeo.2018.04.021
Sophie Schelenz,
Prof. Dr. Thomas Vienken,
Haibing Shao,
Linda Firmbach
Berechtigungen: Peer Reviewed
On the importance of a coordinated site characterization for the sustainable intensive thermal use of the shallow subsurface in urban areas – a case study (2017) Environmental Earth Sciences 76 (2), S. 1-15.
DOI: 10.1007/s12665-016-6331-9
Prof. Dr. Thomas Vienken,
Emanuel Huber,
Manuel Kreck,
Peter Huggenberger,
Prof. Dr. Peter Dietrich
Berechtigungen: Peer Reviewed
How to chase a tracer – combining conventional salt tracer testing and direct push electrical conductivity profiling for enhanced aquifer characterization (2017) Advances in Water Resources 99 , S. 60-66.
DOI: 10.1016/j.advwatres.2016.11.010
Nils Gueting,
Prof. Dr. Thomas Vienken,
Anja Klotzsche,
Jan van der Kruk,
Jan Vanderborght,
Jef Caers,
Harry Vereecken,
Andreas Englert
Berechtigungen: Peer Reviewed
High resolution aquifer characterization using crosshole GPR full-waveform tomography: Comparison with direct-push and tracer test data (2017) Water Resources Research 53 (1), S. 49-72.
DOI: 10.1002/2016WR019498
Tianyuan Zheng,
Haibing Shao,
Sophie Schelenz,
Philipp Hein,
Prof. Dr. Thomas Vienken,
Zhonghe Pang,
Olaf Kolditz,
Thomas Nagel
Berechtigungen: Peer Reviewed
Efficiency and economic analysis of utilizing latent heat from groundwater freezing in the context of borehole heat exchanger coupled ground source heat pump systems (2016) Applied Thermal Engineering 105 , S. 314-326.
DOI: 10.1016/j.applthermaleng.2016.05.158
Jörg Hausmann,
Prof. Dr. Peter Dietrich,
Prof. Dr. Thomas Vienken,
Ulrike Werban
Berechtigungen: Peer Reviewed
Technique, analysis routines, and application of direct push driven in situ color logging (2016) Environmental Earth Sciences 75 (11), S. 1-21.
DOI: 10.1007/s12665-016-5515-7
Marian Andrei Chirila,
Benjamin Christoph,
Prof. Dr. Thomas Vienken,
Prof. Dr. Peter Dietrich,
Jan Bumberger
Berechtigungen: Peer Reviewed
Development of an in-situ thermal conductivity measurement system for exploration of the shallow subsurface (2016) Measurement Science and Technology 27 (6).
DOI: 10.1088/0957-0233/27/6/065901
Klodwig Suibert Oskar Seibertz,
Marian Andrei Chirila,
Jan Bumberger,
Prof. Dr. Peter Dietrich,
Prof. Dr. Thomas Vienken
Berechtigungen: Peer Reviewed
Development of in-aquifer heat testing for high resolution subsurface thermal-storage capability characterisation (2016) Journal of Hydrology 534 , S. 113-123.
DOI: 10.1016/j.jhydrol.2015.12.013
Rudy Rossetto,
Alessio Barbagli,
Iacopo Borsi,
Giorgio Mazzanti,
Prof. Dr. Thomas Vienken,
Enrico Bonari
Berechtigungen: Peer Reviewed
Site investigation and design of the monitoring system at the Sant`Alessio Induced RiverBank Filtration plant (Lucca, Italy) (2015) Rendiconti Online della Società Geologica Italiana 35 , S. 248-251.
DOI: 10.3301/ROL.2015.112
Prof. Dr. Thomas Vienken,
Manuel Kreck,
Jörg Hausmann,
Ulrike Werban,
Prof. Dr. Peter Dietrich
Berechtigungen: Open Access
Berechtigungen: Peer Reviewed
Innovative strategies for high resolution site characterization: application to a flood plain (2014) Acque Sotterranee (Italian Journal of Groundwater) 3 (4), S. 7-14.
DOI: 10.7343/as-091-14-0118
Prof. Dr. Thomas Vienken,
Prof. Dr. Peter Dietrich
Berechtigungen: Peer Reviewed
Comment on “Determination of Hydraulic Conductivity from Grain-Size Distribution for Different Depositional Environments” (2014) Groundwater 52 (6), S. 823-824.
DOI: 10.1111/gwat.12278
Bart Rogiers,
Prof. Dr. Thomas Vienken,
Matej Gedeon,
Okke Batelaan,
Dirk Mallants,
Marijke Huysmans,
Alain Dassargues
Berechtigungen: Peer Reviewed
Multi-scale aquifer characterization and groundwater flow model parameterization using direct push technologies (2014) Environmental Earth Sciences 72 (5), S. 1303-1324.
DOI: 10.1007/s12665-014-3416-1
Zeitschriftenbeiträge
Boyan Meng,
Prof. Dr. Thomas Vienken,
Olaf Kolditz,
Haibing Shao
Evaluating the thermal impacts and sustainability of intensive shallow geothermal utilization on a neighborhood scale: Lessons learned from a case study (2019) Energy Conversion and Management 2019 (199).
DOI: 10.1016/j.enconman.2019.111913
Wir verwenden Cookies. Einige sind notwendig für die Funktion der Webseite, andere helfen uns, die Webseite zu verbessern. Um unseren eigenen Ansprüchen beim Datenschutz gerecht zu werden, erfassen wir lediglich anonymisierte Nutzerdaten mit „Matomo“. Um unser Internetangebot für Sie ansprechender zu gestalten, binden wir außerdem externe Inhalte unserer Social-Media-Kanäle ein.