GLORIA — GEOMAR Library Ocean Research Information Access

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IUGG Electronic Journal Vol. 10 (2010)

IUGG Secretariat, KIT Karlsruhe Institute of Technology

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Publication Date: 2020-02-12

Language: English

Type: info:eu-repo/semantics/other

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Fluvial flood risk management in a changing world (2010)

Merz, B. ; Hall, J. ; Disse, M. ; [et al.]

In: Natural Hazards and Earth System Sciences (NHESS)

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Publication Date: 2020-02-12

Keywords: 550 - Earth sciences

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Solid Earth - Basic Science for the Human Habitat - ILP’s Second Potsdam Conference 2010 - Abstracts (2010)

Deutsches GeoForschungsZentrum GFZ

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Late Pleistocene-Holocene sedimentary processes at the active margin of South-Central Chile : marine and lacustrine sediment records as archives of tectonics and climate variability (2010)

Stefer [Blumberg], S.

Deutsches GeoForschungsZentrum GFZ

In: Scientific Technical Report

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Publication Date: 2020-02-12

Description: In my thesis, I studied marine and lacustrine sediment cores from different depositional provinces along the south-central Chilean margin with the overall objective to identify their records of paleoclimate and paleotectonics. First of all, I investigated sedimentary sequences that were recovered within the margin-parallel trench system (cp. Figure 1.2) and hence constitute long-term recorders [...] of the sediment transport between the continent and the abyssal zone of the lower plate.

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Early Warning Systems for Transportation Infrastructures : Workshop 9 - 10 February 2009 Fraunhofer IITB Karlsruhe Karlsruhe Institute of Technology (KIT) ; Programme & Abstracts (2010)

GEOTECHNOLOGIEN

In: GEOTECHNOLOGIEN Science Report

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Description: The Workshop focus was on the specific safety requirements of railbound transportation systems. For the latter, early warning is crucial not only because of the long braking times of trains but also because of the high demands on track geometry and stability necessary for safe train operation. In addition, after a natural disaster, reliable and fast information about the state of the railway infrastructure (damage map) is of utmost importance in order to mitigate the consequences of the disaster. During two days experts from the fields of seismology, sensor technology, railway engineering, computer science, and railway safety reviewed the state of the art and the potential of early warning for transportation systems. Major workshop topics were – seismic early warning and sensors, – early warning of endangered trains, – damage assessment for railway infrastructure, – modern geo-standard based information systems, – train control and safety strategies. Another purpose of the workshop was to delineate the possibilities and limitations of a railway infrastructure integrated network of accelerometers that can be used for permanent structural health monitoring and earthquake early warning.

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Interpretation of GRACE data of the Nile Basin using a groundwater recharge model (2010)

Bonsor, H. ; Mansour, M. ; MacDonald, A. ; [et al.]

In: Hydrology and Earth System Sciences Discussions

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Conference contributions to the International Conference Geothermal Energy and CO2 Storage: Synergy or Competition? (2010)

Deutsches GeoForschungsZentrum GFZ

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Reactivity of Calcite/Water-Interfaces (RECAWA) : Molecular level process understanding for technical applications (2010)

Stelling, J. ; Neumann, T. ; Kramar, U. ; [et al.]

In: GEOTECHNOLOGIEN Science Report

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Publication Date: 2020-02-12

Description: RECAWA intends to develop a fundamental understanding of the reactivity and dynamics of calcite surfaces during crystal growth in aquatic systems. Therefore, the calcite-water surface has been characterised at different hydrochemical conditions and surface diffraction measurements have been applied to probe if changes in zeta potential are accompanied by changes in the calcite-water interface structure. The interaction of calcite with Selenium is investigated in a mixed flow reactor (MFR) study which is accompanied by GI- EXAFS analyses to characterize the Se adsorption species. The interaction of calcite surfaces with phosphate and phosphonates is the focus of two subprojects. The sorption/precipitation mechanisms of PO43- and HPO32+, respectively, on different calcite powders (precipitated calcium carbonates and limestone powders) are investigated to determine sorption isotherms and phase transformations on the applied surfaces which is of great interest with regard to phosphate recycling and/or water treatment. Analytical work includes SEM, XRD and XAFS spectroscopy for a detailed characterisation of the calcite powders in different sections of the isotherms. Experimental investigations on the interaction of limestone powder and two superplasticizers have been conducted with regard to concreting. These experiments were done at alkaline conditions and lead to massive reactions and changes in the zeta potential of the solutions and limestone powder when superplasticizers added. Additional results of quantum-mechanical calculations and force-field modelling demonstrated that the Double Defect Method is able to quantitatively predict mixing properties of various isostructural binary and ternary carbonate solid solutions. In particular, low equilibrium retention levels of SO42- and SeO42- in carbonates imply that the reasonably large concentrations SO42- and SeO42- in carbonates reported in previous studies should be attributed to non-equilibrium entrapment effects. Data obtained from atomistic modelling complement our data determined using lab methods. Further experimental and analytical, work including in-situ AFM studies using Iceland spar single crystals, is in progress and will help to interconnect the present results of the sub-projects.

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Observation of the System Earth from Space : Status Seminar 4. October 2010, Rheinische Friedrich Wilhelms Universität Bonn ; Programme & Abstracts (2010)

GEOTECHNOLOGIEN

In: GEOTECHNOLOGIEN Science Report

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Hyperspectral algorithms : report in the frame of EnMAP preparation activities (2010)

Kaufmann, H. ; Segl, K. ; Itzerott, S. ; [et al.]

Deutsches GeoForschungsZentrum GFZ

In: Scientific Technical Report

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Publication Date: 2020-02-12

Description: Against the background of EnMAP preparation analyses have been carried out on the status of research in various areas of hyperspectral remote sensing for the use of existing algorithms in the EnMAP application box. The aim was to compose the status of research in Germany and internationally. Therefore, in various fields of expertise applied and accordingly available algorithms and products based on hyperspectral data has been evaluated and documented. The intention has been to demonstrate and to evaluate the added value of hyperspectral remote sensing to multispectral methods for each product. For this purpose analyses have been carried out by different research groups which were based on the specialty and the experience of each group. Hereby a summary was created of each major application perspective and the relevant remote sensing derived variables and significant processing algorithms (state-of-the-art) belonging to this context. Based on this, the research delivers, as a result, a recommendation which of the algorithms should be implemented into the Applikationsbox of EnMAP. Tests of the algorithms or their implementation were not part of the analyses. However, notes have been given on what algorithms should be tested in the context of a detailed preparation phase. An assessment to the further R & D requirements in the development of algorithms has been made on this basis.

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