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  • 1
    Publication Date: 2023-06-08
    Description: The consistent management of research data is crucial for the success of long-term and large-scale collaborative research. Research data management is the basis for efficiency, continuity, and quality of the research, as well as for maximum impact and outreach, including the long-term publication of data and their accessibility. Both funding agencies and publishers increasingly require this long term and open access to research data. Joint environmental studies typically take place in a fragmented research landscape of diverse disciplines; researchers involved typically show a variety of attitudes towards and previous experiences with common data policies, and the extensive variety of data types in interdisciplinary research poses particular challenges for collaborative data management. In this paper, we present organizational measures, data and metadata management concepts, and technical solutions to form a flexible research data management framework that allows for efficiently sharing the full range of data and metadata among all researchers of the project, and smooth publishing of selected data and data streams to publicly accessible sites. The concept is built upon data type-specific and hierarchical metadata using a common taxonomy agreed upon by all researchers of the project. The framework’s concept has been developed along the needs and demands of the scientists involved, and aims to minimize their effort in data management, which we illustrate from the researchers’ perspective describing their typical workflow from the generation and preparation of data and metadata to the long-term preservation of data including their metadata.
    Description: Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
    Keywords: ddc:550.2 ; Research data management ; Interdisciplinary environmental research ; Metadata ; Taxonomy
    Language: English
    Type: doc-type:article
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  • 2
    Publication Date: 2014-12-21
    Description: We carried out measurements of the magnetic field vector at two sites during Integrated Ocean Drilling Program (IODP) Expedition 330 to the Louisville Seamount Chain. The aim was to impose constraints on the magnetization direction and to contribute to the reconstruction of possible hotspot motion. The measurements were conducted using the Göttingen Borehole Magnetometer (GBM). It comprises three fiber optic gyros (FOG) that can be used to reorient the magnetic field data. To improve accuracy, we are using a new algorithm that combines FOG data and data of two inclinometers. As can be evaluated by comparing downlog and uplog of the measurements, the three dimensional magnetic field data obtained is of good quality. An interpretation of the magnetic field data using a state of the art method based on horizontal layers yields results inconsistent with measurements of the natural remanent magnetization (NRM) of drill core samples. In the following, we define the magnetization from the horizontal layer as apparent magnetization and develop a new interpretation method based on dipping layers. Our method includes a new approximate forward modelling algorithm and considerably improves the consistency of the borehole measurements and the NRM data. We show that a priori information about the geometry of a layer is required to constrain the inclination and declination of magnetization. Especially the azimuth of a layer and the declination of magnetization cannot be determined separately. Using azimuth and layer dip information from borehole images, we obtain constraints on inclination and declination for one particular layer.
    Print ISSN: 0148-0227
    Topics: Geosciences , Physics
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  • 3
    Publication Date: 2020-02-12
    Description: The extraction of groundwater for drinking water purposes is one of the most important uses of the natural subsurface. Sustainable management of groundwater resources requires detailed knowledge of the hydraulic properties of the subsurface. Typically, these properties are not directly accessible. We are convinced that the evaluation of hydraulic properties necessitates applying hydraulic stimuli (e.g., injection and extraction of groundwater, tracer tests, etc.). In this context, tomographic assemblies and inversion strategies originally derived for geophysical surveying and meteorological data assimilation can be transferred to hydraulic applications. In addition, time-lapse geophysical surveying techniques may be used to monitor hydraulic tests. The latter requires fully coupled hydrogeophysical inversion strategies, accounting for the entire process chain from hydraulic properties via flow and transport to the geophysical surveying program. The current project includes: (1) the development of a geostatistical inversion method for transient tomographic data of multiple hydraulic investigation techniques including the geoelectrical monitoring of salt-tracer experiments using the 4-D variational approach, (2) the comparison of this method to the inversion of temporal moments, (3) the model-based optimal design of tomographic surveys, (4) the development of modular assessment equipment for efficient execution of tomographic surveys in a hydrogeological context, (5) the performance of tomographic field tests at the research site Lauswiesen in Tübingen using the model-based design and providing data for the inversion.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
    Format: application/pdf
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