A5067686059- Methane Hydrates and Related Phenomena
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Underwater Vehicles and Communication Systems
- Oceanographic and Atmospheric Processes
- Geological formations and processes
- Offshore Engineering and Technologies
- Marine and coastal ecosystems
- Maritime Navigation and Safety
- Underwater Acoustics Research
- Marine and Offshore Engineering Studies
- Marine and fisheries research
- Law, logistics, and international trade
- Scientific Computing and Data Management
- Hydraulic and Pneumatic Systems
- Wastewater Treatment and Nitrogen Removal
- CO2 Sequestration and Geologic Interactions
- Environmental Monitoring and Data Management
- Marine Biology and Environmental Chemistry
- Geochemistry and Elemental Analysis
- Coastal and Marine Dynamics
- Geological Formations and Processes Exploration
- Climate variability and models
- Distributed systems and fault tolerance
- Marine Bivalve and Aquaculture Studies
University of Bremen
1990-2020
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2004
The standing stock of planktonic foraminifers collected at 16 stations by multinet plankton tow has been examined in five discrete depth intervals (0–25 m, 25–50 50–100 100–150 and 150–300 m). assemblages document the status populations surface subsurface waters Southeast Atlantic during February/March 1988. Standing crops hydrographic conditions coastal geostrophic branch Benguela Current, Angola Tropical Cyclonic Gyre, South Equatorial Current. stocks are highest when primary production is...
Abstract Subsurface fluid flow in oceans and lakes affects bathymetric morphology, sediment distribution, water composition. We present newly discovered giant lacustrine pockmarks Lake Neuchâtel (up to 160 m diameter 30 deep) that rank among the largest known lakes. Our multidisciplinary study reveals ~60 of suspended inside a pockmark. The suspension is 2.6° warmer isotopically lighter δ 18 O H2O by 1.5‰ than ambient lake water, documenting currently active karstic groundwater discharge...
Recently, the Center for Marine Environmental Sciences MARUM (University of Bremen, Germany) received national funds to design and build a new remote operated underwater vehicle - HYBRID-ROV (H-ROV). Within 3 year project basis solely battery powered capable working as ROV AUV shall be developed in institute. Predominantly, proposed use H-ROV scientific operations more risky environmental areas like under-ice operation, near-bottom-work harsh topography, between cold water corals or...
Abstract Submarine mud volcanoes develop through the extrusion of methane‐rich fluids and sediments onto seafloor. The morphology a volcano can record its extrusive history processes erosion deformation affecting it. study offshore dynamics is limited because only few have been mapped at resolutions that reveal their detailed surface structures. More importantly, rates volumes extruded sediment methane are poorly constrained. 100 m high twin cones Venere situated ∼1,600 water depth within...
Nitrate as one of the chemical parameters major interest in marine biogeochemistry is detectable by means its optical absorption ultra violet spectrum, given appropriate algorithms to correct for other seawater constituents. The presented work outlines potential and technical requirements adopt this new instrumentation autonomous sub-surface applications. First results from laboratory experiment well a flow-through application onboard RV POSEIDON cruise P347 North Atlantic are used...
Eastern Boundary Upwelling Ecosystems (EBUEs) are associated with high biological productivity, fish catch and they highly contribute to marine carbon sequestration. Whether coastal upwelling has intensified or weakened under climate change in the past decades is controversially discussed different approaches (e.g. time-series of chlorophyll, wind, sea surface temperature, modelling experiments) have been considered. We present a record almost two particle fluxes (1991-2009) from ca. 600...
At the end of 1997 DOMEST projects started. The aim was development a moored sensor network in deep ocean near Canary Islands. With implementation bi-directional satellite link and underwater acoustic modems, data-link from land into sea should be established on daily basis. DOMEST, remotely controlled measurement element particle transport will possible. Remote control includes access to variety data without recovering sensors ocean. Data possible at any time via Internet communication....