A5052780050- Seismic Waves and Analysis
- Seismic Imaging and Inversion Techniques
- Geophysical Methods and Applications
- earthquake and tectonic studies
- Geophysical and Geoelectrical Methods
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Seismology and Earthquake Studies
- Methane Hydrates and Related Phenomena
- Maritime and Coastal Archaeology
- Drilling and Well Engineering
- Geological and Geophysical Studies
- Geology and Paleoclimatology Research
- Archaeology and Historical Studies
- Geological and Tectonic Studies in Latin America
- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Earthquake Detection and Analysis
- Underwater Acoustics Research
- Ancient Mediterranean Archaeology and History
- Image Processing and 3D Reconstruction
- Botany and Geology in Latin America and Caribbean
- Soil Moisture and Remote Sensing
- Geological Studies and Exploration
- Landslides and related hazards
Kiel University
2016-2025
Fachhochschule Kiel
2024
Clinical Research Center Kiel
2018-2022
GEOMAR Helmholtz Centre for Ocean Research Kiel
1994-2022
Johannes Gutenberg University Mainz
2022
GFZ Helmholtz Centre for Geosciences
1995-2007
Federal Institute for Geosciences and Natural Resources
1995
University of Texas Institute for Geophysics
1986
Deep tremor under Shikoku, Japan, consists primarily, and perhaps entirely, of swarms low‐frequency earthquakes (LFEs) that occur as shear slip on the plate interface . Although is observed at other boundaries, lack cataloged has precluded a similar conclusion about in those locales. We use network autocorrelation approach to detect locate LFEs within recorded three subduction zones characterized by different thermal structures levels interplate seismicity: southwest northern Cascadia, Costa...
New techniques and methods for energy storage are required the transition to a renewable power supply, termed "Energiewende" in Germany. Energy geological subsurface provides large potential capacities bridge temporal gaps between periods of production solar or wind consumer demand may also help relieve grids. Storage options include synthetic methane, hydrogen compressed air salt caverns porous formations as well heat formations. In ANGUS+ project, gas media aspects their use on spatial...
The Baltic Sea basins, some of which only submerged in the mid-Holocene, preserve Stone Age structures that did not survive on land. Yet, discovery these features is challenging and requires cross-disciplinary approaches between archeology marine geosciences. Here, we combine shipborne autonomousunderwater vehicle hydroacoustic data with up to a centimeter range resolution, sedimentological samples, optical images explore megastructure located 21 m water depth Bay Mecklenburg, Germany....
Here we present the results of local source tomographic inversion beneath central Java. The data set was collected by a temporary seismic network. More than 100 stations were operated for almost half year. About 13,000 P and S arrival times from 292 events used to obtain three‐dimensional (3‐D) Vp , Vs / models crust mantle wedge Source location determination 3‐D velocity performed simultaneously based on new iterative algorithm, LOTOS‐06. Final event locations clearly image shape subduction...
In May 2007 a network of global positioning systems (GPS) and seismic stations on the Nicoya Peninsula, northern Costa Rica, recorded slow‐slip event accompanied by tremor. The close proximity Peninsula to seismogenic part Cocos‐Caribbean subduction plate boundary makes it good location study such events. Several centimeters southwest motion were GPS over period several days weeks, three distinct episodes tremor during same time span. Inversion surface displacement data for depth pattern...
ABSTRACT We develop a two‐dimensional full waveform inversion approach for the simultaneous determination of S‐wave velocity and density models from SH ‐ Love‐wave data. illustrate advantages SH/Love with simple synthetic example demonstrate method's applicability to near‐surface dataset, recorded in village Čachtice Northwestern Slovakia. Goal survey was map remains historical building foundations highly heterogeneous subsurface. The seismic comprises two parallel SH‐profiles maximum...
Seismic and volcanic activities in Central Java, Indonesia, the area of interest this study, are directly or indirectly related to subduction Indo-Australian plate. In framework MERapi AMphibious EXperiments (MERAMEX), a network consisting about 130 seismographic stations was installed onshore offshore Java operated for more than 150 days. addition, 3-D active seismic experiments were carried out offshore. paper, we present results processing combined passive data, which contain traveltimes...
Natural seepage from the seafloor is a worldwide phenomenon but quantitative measurements of gas release are rare, and entire range dynamics in space, time, strength remains unclear so far. To mitigate this, hydroacoustic device GasQuant (180 kHz, multibeam) was developed to monitor tempo‐spatial variability bubble releases seafloor. deployed 2005 on seep field Tommeliten (North Sea) for 36 h. This situ approach provides much better spatial temporal resolution seeps than using conventional...
Abstract. For millennia, humans have gravitated towards coastlines for their resource potential and as geopolitical centres global trade. A basic requirement ensuring water security coastal communities relies on a delicate balance between the supply demand of potable water. The interaction freshwater saltwater in settings is, therefore, complicated by both natural human-driven environmental changes at land–sea interface. In particular, ongoing sea-level rise, warming deoxygenation might...
Abstract. Located in the North Frisian Wadden Sea, today's tidal flat sediments cover a formerly cultivated area outside present-day sea dike of Nordstrand that had been occupied by settlers since Middle Ages. The intensive cultivation increased coast's vulnerability to storm floods. Especially medieval surges first Grote Mandränke (St Marcellus flood) 1362 CE and second (Burchardi 1634 destroyed large parts diked marshland. This study focusses on investigation drowned part Trendermarsch...
For almost 10 years the KTB superdeep drilling project has offered an excellent field laboratory for adapting seismic techniques to crystalline environments and testing new ideas interpreting reflections in terms of lithological or textural properties metamorphic rock units. The investigations culminated a three‐dimensional (3‐D) reflection survey on 19×19 km area with drill site at its center. Interpretation these data resulted detailed, structural model German Continental Deep Drilling...
Research Article| August 01, 2003 Crustal-scale pop-up structure in cratonic lithosphere: DOBRE deep seismic reflection study of the Donbas fold belt, Ukraine Yuriy Maystrenko; Maystrenko 1Technology Center, Ukrgeofizika, 10, Perovska, Kyiv 03057, Ukraine, and GeoForschungsZentrum Potsdam, Telegrafenberg C426, Potsdam 14473, Germany Search for other works by this author on: GSW Google Scholar Sergiy Stovba; Stovba 2Technology Randell Stephenson; Stephenson 3Vrije Universiteit, Faculty Earth...
Abstract Root water uptake is one of the essential processes within soil–plant–atmosphere continuum. We present a method for monitoring soil‐water redistributions due to by roots. Our aim image and monitor diurnal redistribution during small‐scale (centimeter‐to‐decimeter range) indoor experiment correlate content determined applied geoelectrical time‐lapse imaging techniques with values from single‐point time domain reflectometry (TDR) measurements. This includes establishing pedophysical...
Abstract The city of Iznik, called Nikaia or Nicaea in ancient times, is located northwest Anatolia, Turkey. renowned especially for the first Council convened by Roman emperor Constantine ad 325 an attempt to unify Church. During international field course on geophysical exploration archaeological targets we detected remains a small previously unknown Byzantine church fallow lot land inside city. oriented parallel Hippodamian street grid that deviates from modern system quarter ~45°. We...