• European Gravity Service for Improved Emergency Management (EGSIEM) - from concept to implementation 

  Jäggi, Adrian; Weigelt, M.; Flechtner, F.; Güntner, A.; Mayer-Gürr, T.; Martinis, S.; Bruinsma, S.; Flury, J.; Bourgogne, S.; Steffen, H.; Meyer, U.; Jean, Y.; Sušnik, A.; Grahsl, A.; Arnold, D.; Cann-Guthauser, K.; Dach, R.; Li, Z.; Chen, Q.; van Dam, T.; Gruber, C.; Poropat, L.; Gouweleeuw, B.; Kvas, A.; Klinger, B.; Lemoine, J.-M.; Biancale, R.; Zwenzner, H.; Bandikova, T.; Shabanloui, Akbar (London : The Royal Astronomical Society, 2019)

  Earth observation satellites yield a wealth of data for scientific, operational and commercial exploitation. However, the redistribution of mass in the system Earth is not yet part of the standard inventory of Earth ...
• Calibration of GRACE Accelerometers Using Two Types of Reference Accelerations 

  Koch, Igor; Shabanloui, Akbar; Flury, Jakob (Cham : Springer, 2018)

  Two approaches for the calibration of GRACE (Gravity Recovery And Climate Experiment) accelerometers are revisited. In the first approach, surface forces acting on the satellite are considered to derive the reference ...
• High tilt susceptibility of the Scintrex CG-5 relative gravimeters 

  Reudink, R.; Klees, R.; Francis, O.; Kusche, J.; Schlesinger, R.; Shabanloui, Akbar; Sneeuw, N.; Timmen, L. (Berlin Heidelberg : Springer, 2014)

  We report on the susceptibility of the Scintrex CG-5 relative gravimeters to tilting, that is the tendency of the instrument of providing incorrect readings after being tilted (even by small angles) for a moderate period ...
• An Autonomous Transportation Vehicle For Algorithm And Sensor Testing 

  Tennstedt, Benjamin; Schön, Steffen (Noordwijk, The Netherlands : ESA/ESTEC, 2018)

  This paper presents the implementation of an autonomous transportation vehicle as a kinematic test platform for navigation sensors and algorithms. The repeatability of the vehicle trajectory in an outdoor environment with ...
• Synchronized Load Quantification from Multiple Data Records for Analysing High-rise Buildings 

  Behrendt, Marco; Punurai, Wonsiri; Beer, Michael (2018)

  To analyse the reliability and durability of large complex structures such as high-rise buildings, most realistically, it is advisable to utilize site-specific load characteristics. Such load characteristics can be made ...
• Comparison of Daily GRACE Solutions to GPS Station Height Movements 

  Eicker, Annette; Kurtenbach, Enrico; Kusche, Jürgen; Shabanloui, Akbar (Berlin : Springer, 2014)

  In Kurtenbach (2011) and Kurtenbach et al. (2012) an approach has been introduced that allows to calculate daily gravity field solutions from GRACE data within the framework of a Kalman filter and smoother estimation. ...
• Global Gravity Field Models from Different GOCE Orbit Products 

  Shabanloui, Akbar; Schall, Judith; Eicker, Annette; Kusche, Jürgen (Berlin : Springer, 2014)

  In this contribution, the in-house (processed) GOCE products including precise orbit and Earth’s gravity field are compared to the official ESA products. The comparison is drawn on orbit product as well as gravity field ...
• Reliability Analysis of High Rise Building Considering Wind Load Uncertainty 

  Zhang, Yi; Yan, Keqin; Cheng, Tao (Teheran : K. N. Toosi University of Technology, 2018)

  In engineering structures, the safety problems are always depending on the respond of structures to different types of load. The safety assessment of a high rise building is highly depending on the analysis of environmental ...
• The Role of Transdisciplinary Research for Agricultural Climate Change Adaptation Strategies 

  Schermer, Markus; Stotten, Rike; Strasser, Ulrich; Meissl, Gertraud; Marke, Thomas; Foerster, Kristian; Formayer, Herbert (Basel : MDPI, 2018)

  While science widely acknowledges the necessity of climate change adaptation (CCA), concrete strategies for CCA by major land-use actor groups at a local level are largely missing. Immediate economic challenges often prevent ...
• Impact of Hydrological Modellers' Decisions and Attitude on the Performance of a Calibrated Conceptual Catchment Model: Results from a "Modelling Contest' 

  Bormann, Helge; de Brito, Mariana Madruga; Charchousi, Despoina; Chatzistratis, Dimitris; David, Amrei; Grosser, Paula Farina; Kebschull, Jenny; Konis, Alexandros; Koutalakis, Paschalis; Korali, Alkistis; Krauzig, Naomi; Meier, Jessica; Meliadou, Varvara; Meinhardt, Markus; Munnelly, Kieran; Stephan, Christiane; de Vos, Leon Frederik; Dietrich, Jorg; Tzoraki, Ourania (Basel : MDPI, 2018)

  In this study, 17 hydrologists with different experience in hydrological modelling applied the same conceptual catchment model (HBV) to a Greek catchment, using identical data and model code. Calibration was performed ...
• Design aspects of concrete towers for wind turbines 

  von der Haar, Christoph; Marx, Steffen (Vorna Valley, Midrand : South African Institution of Civil Engineering (SAICE), 2015)

  All over the world an increase in the use of renewable energy sources is being sought, and here the utilisation of wind energy plays an important role. Germany currently represents one of the world's largest markets for ...
• Consistency and impact of mixed receiver antenna phase centre models in regional GNSS networks 

  Kersten, Tobias; Kröger, Johannes; Breva, Yannick; Schön, Steffen (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)

  The Institut für Erdmessung (IfE) at the Leibniz University Hannover calibrates GNSS antennas determined by the well known robot based concept in the field. Our group has recently improved the calibration procedure to ...
• Network method for deformation analysis of three-dimensional point cloud with terrestrial laser scanning sensor 

  Xu, Xiangyang; Yang, Hao (Thousand Oaks : Sage Publications, 2018)

  The complexity of structural materials is increasing the importance of the technology for high accuracy measurement. How to obtain the displacement information of structural feature points accurately and efficiently is the ...
• A comparison study on jacket substructures for offshore wind turbines based on optimization 

  Häfele, Jan; Gebhardt, Cristian G.; Rolfes, Raimund (Göttingen : Copernicus Publications, 2019)

  The structural optimization problem of jacket substructures for offshore wind turbines is commonly regarded as a pure tube dimensioning problem, minimizing the entire mass of the structure. However, this approach goes along ...
• Absolute gravity measurements in Hamburg (Groß Flottbek) at DESY (Deutsches El-ektronen-Synchrotron) with the Hannover gravity meter FG5X-220 in July 2018 

  Timmen, Ludger (2018-07-18)

  Integrative geodetic-gravimetric approach for investigating the longterm stability in the sinkhole area of Hamburg-Flottbek.
• Absolute gravity measurements in Hamburg (Groß Flottbek) at DESY (Deutsches El-ektronen-Synchrotron) with the Hannover gravity meter FG5X-220 in August 2016 

  Timmen, Ludger (2017-02-02)

  Integrative geodetic-gravimetric approach for investigating the longterm stability in the sinkhole area of Hamburg-Flottbek.
• Absolute gravity measurements in Hamburg/Groß Flottbek at DESY (Deutsches El-ektronen-Synchrotron) with the Hannover gravity meter FG5X-220 in October 2015 

  Timmen, Ludger (2015-12-15)

  Integrative geodetic-gravimetric approach for investigating the longterm stability in the sinkhole area of Hamburg-Flottbek.
• Absolute gravity measurements in the town hall (“Rathaus”) of Bad Frankenhausen with the Hannover gravity meter FG5X-220 in August 2018 

  Timmen, Ludger (2018-08-14)

  Integrative geodetic-gravimetric approach for investigating the longterm stability in the sinkhole area of Hamburg-Flottbek.
• Efficient probabilistic analysis of offshore wind turbines based on time-domain simulations 

  Hübler, Clemens Janek (Hannover : Institut für Statik und Dynamik, Leibniz Universität Hannover, 2019)

  Offshore wind energy plays an important role in the successful implementation of the energy transition. However, without subsidies, it is not yet sufficiently competitive compared to other renewables or conventional fossil ...
• Absolute gravity measurements in the town hall (“Rathaus”) of Bad Frankenhausen with the Hannover gravity meter FG5X-220 in August 2016 

  Timmen, Ludger (2017-02-02)

  Integrative geodetic-gravimetric approach for investigating the longterm stability in the sinkhole area of Hamburg-Flottbek.

View more