@article{BaierMottaghyZiegleretal.2008,
  author    = {Baier, C. and Mottaghy, Darius and Ziegler, M. and Rath, V.},
  title     = {Numerische Simulation des Gefrierprozesses bei der Baugrundvereisung im durchstr{\"o}mten Untergrund},
  series = {Bauingenieur},
  volume    = {83},
  journal   = {Bauingenieur},
  number    = {2},
  issn      = {0005-6650},
  pages     = {49 -- 60},
  year      = {2008},
  language  = {de}
}
@article{BergAngererMartinellietal.2013,
  author    = {Berg, Milena and Angerer, Anita and Martinelli, Walter and Hammer, Stephan and Mottaghy, Darius},
  title     = {Erkundung des geothermischen Potenzials eines ehemaligen Untertagebergbaus},
  series = {BBR - Fachmagazin f{\"u}r Brunnen- und Leitungsbau},
  volume    = {64},
  journal   = {BBR - Fachmagazin f{\"u}r Brunnen- und Leitungsbau},
  number    = {6},
  pages     = {46 -- 52},
  year      = {2013},
  language  = {de}
}
@article{ChenClauserMarquartetal.2015,
  author    = {Chen, Tao and Clauser, Christoph and Marquart, Gabriele and Willbrand, Karen and Mottaghy, Darius},
  title     = {A new upscaling method for fractured porous media},
  series = {Advances in Water Resources},
  volume    = {80},
  journal   = {Advances in Water Resources},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0309-1708},
  doi       = {10.1016/j.advwatres.2015.03.009},
  pages     = {60 -- 68},
  year      = {2015},
  language  = {en}
}
@inproceedings{DuranParedesMottaghyHerrmannetal.2020,
  author    = {Duran Paredes, Ludwin and Mottaghy, Darius and Herrmann, Ulf and Groß, Rolf Fritz},
  title     = {Online ground temperature and soil moisture monitoring of a shallow geothermal system with non-conventional components},
  series = {EGU General Assembly 2020},
  booktitle = {EGU General Assembly 2020},
  year      = {2020},
  abstract  = {We present first results from a newly developed monitoring station for a closed loop geothermal heat pump test installation at our campus, consisting of helix coils and plate heat exchangers, as well as an ice-store system. There are more than 40 temperature sensors and several soil moisture content sensors distributed around the system, allowing a detailed monitoring under different operating conditions.In the view of the modern development of renewable energies along with the newly concepts known as Internet of Things and Industry 4.0 (high-tech strategy from the German government), we created a user-friendly web application, which will connect the things (sensors) with the open network (www). Besides other advantages, this allows a continuous remote monitoring of the data from the numerous sensors at an arbitrary sampling rate.Based on the recorded data, we will also present first results from numerical simulations, taking into account all relevant heat transport processes.The aim is to improve the understanding of these processes and their influence on the thermal behavior of shallow geothermal systems in the unsaturated zone. This will in turn facilitate the prediction of the performance of these systems and therefore yield an improvement in their dimensioning when designing a specific shallow geothermal installation.},
  language  = {en}
}
@article{KellerRathBruckmannetal.2020,
  author    = {Keller, Johannes and Rath, Volker and Bruckmann, Johanna and Mottaghy, Darius and Clauser, Christoph and Wolf, Andreas and Seidler, Ralf and B{\"u}cker, H. Martin and Klitzsch, Norbert},
  title     = {SHEMAT-Suite: An open-source code for simulating flow, heat and species transport in porous media},
  series = {SoftwareX},
  volume    = {12},
  journal   = {SoftwareX},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2352-7110},
  doi       = {10.1016/j.softx.2020.100533},
  pages     = {9},
  year      = {2020},
  abstract  = {SHEMAT-Suite is a finite-difference open-source code for simulating coupled flow, heat and species transport in porous media. The code, written in Fortran-95, originates from geoscientific research in the fields of geothermics and hydrogeology. It comprises: (1) a versatile handling of input and output, (2) a modular framework for subsurface parameter modeling, (3) a multi-level OpenMP parallelization, (4) parameter estimation and data assimilation by stochastic approaches (Monte Carlo, Ensemble Kalman filter) and by deterministic Bayesian approaches based on automatic differentiation for calculating exact (truncation error-free) derivatives of the forward code.},
  language  = {en}
}
@article{KuertenMottaghyZiegler2013,
  author    = {K{\"u}rten, Sylvia and Mottaghy, Darius and Ziegler, Martin},
  title     = {W{\"a}rme{\"u}bergangswiderstand bei fl{\"a}chigen thermo-aktiven Bauteilen am Beispiel thermo-aktiver Abdichtungselemente},
  series = {Bautechnik},
  volume    = {90},
  journal   = {Bautechnik},
  number    = {7},
  publisher = {Ernst \& Sohn},
  address   = {Berlin},
  issn      = {1437-0999},
  doi       = {10.1002/bate.201300035},
  pages     = {387 -- 394},
  year      = {2013},
  language  = {de}
}
@article{KuertenMottaghyZiegler2014,
  author    = {K{\"u}rten, Sylvia and Mottaghy, Darius and Ziegler, Martin},
  title     = {Planung, Auslegung und Dimensionierung von thermo-aktiven Bauteilen am Beispiel thermo-aktiver Abdichtungselemente},
  series = {Geothermie, Bohr- und Brunnentechnik},
  journal   = {Geothermie, Bohr- und Brunnentechnik},
  publisher = {Ernst \& Sohn},
  address   = {Berlin},
  pages     = {18 -- 20},
  year      = {2014},
  language  = {de}
}
@article{KuertenMottaghyZiegler2015,
  author    = {K{\"u}rten, Sylvia and Mottaghy, Darius and Ziegler, Martin},
  title     = {A new model for the description of the heat transfer for plane thermo-active geotechnical systems based on thermal resistances},
  series = {Acta Geotechnica},
  volume    = {10},
  journal   = {Acta Geotechnica},
  number    = {2},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1861-1133},
  doi       = {10.1007/s11440-014-0311-6},
  pages     = {219 -- 229},
  year      = {2015},
  language  = {en}
}
@article{KuertenMottaghyZiegler2015,
  author    = {K{\"u}rten, Sylvia and Mottaghy, Darius and Ziegler, Martin},
  title     = {Design of plane energy geostructures based on laboratory tests and numerical modelling},
  series = {Energy and Buildings},
  volume    = {107},
  journal   = {Energy and Buildings},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0378-7788},
  doi       = {10.1016/j.enbuild.2015.08.039},
  pages     = {434 -- 444},
  year      = {2015},
  language  = {en}
}
@article{KuertenMottaghyZiegler2015,
  author    = {K{\"u}rten, Sylvia and Mottaghy, Darius and Ziegler, Martin},
  title     = {Besonderheiten bei der Planung und Berechnung von oberfl{\"a}chennahen thermo-aktiven Bauteilen},
  series = {Geotechnik},
  volume    = {38},
  journal   = {Geotechnik},
  number    = {2},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {2190-6653},
  doi       = {10.1002/gete.201500002},
  pages     = {107 -- 119},
  year      = {2015},
  language  = {de}
}
@incollection{MottaghyMajorowiczRath2009,
  author    = {Mottaghy, Darius and Majorowicz, Jacek and Rath, Volker},
  title     = {Ground Surface Temperature Histories Reconstructed from Boreholes in Poland: Implications for Spatial Variability},
  series = {The Polish Climate in the European Context: An Historical Overview},
  booktitle = {The Polish Climate in the European Context: An Historical Overview},
  publisher = {Springer Science+Business Media},
  address   = {Dordrecht},
  isbn      = {978-90-481-3167-9},
  doi       = {10.1007/978-90-481-3167-9_17},
  pages     = {375 -- 387},
  year      = {2009},
  language  = {en}
}
@article{MottaghyPechnig2009,
  author    = {Mottaghy, Darius and Pechnig, Renate},
  title     = {Numerische 3D Modelle zur Temperaturvorhersage und Reservoirsimulationen},
  series = {BBR - Fachmagazin f{\"u}r Brunnen- und Leitungsbau},
  volume    = {60},
  journal   = {BBR - Fachmagazin f{\"u}r Brunnen- und Leitungsbau},
  number    = {10},
  pages     = {44 -- 51},
  year      = {2009},
  language  = {de}
}
@article{MottaghyPechnigTaugsetal.2010,
  author    = {Mottaghy, Darius and Pechnig, Renate and Taugs, Renate and Kr{\"o}ger, Jens and Thomsen, Claudia and Hesse, Fabian and Liebsch-Doerschner, Thomas},
  title     = {Erstellung eines geothermischen Modells f{\"u}r Teile Hamburgs und anliegende Gebiete},
  series = {BBR - Fachmagazin f{\"u}r Brunnen- und Leitungsbau},
  volume    = {61},
  journal   = {BBR - Fachmagazin f{\"u}r Brunnen- und Leitungsbau},
  number    = {12},
  publisher = {WVGW Wirtschafts- u. Verl.Ges. Gas und Wasser},
  address   = {Bonn},
  issn      = {1611-1478},
  pages     = {52 -- 59},
  year      = {2010},
  language  = {de}
}
@article{MottaghyPechnigVogt2011,
  author    = {Mottaghy, Darius and Pechnig, Renate and Vogt, Christian},
  title     = {The geothermal project Den Haag: 3D numerical models for temperature prediction and reservoir simulation},
  series = {Geothermics},
  volume    = {40},
  journal   = {Geothermics},
  number    = {3},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0375-6505},
  doi       = {10.1016/j.geothermics.2011.07.001},
  pages     = {199 -- 210},
  year      = {2011},
  abstract  = {The proposed Den Haag Zuidwest district heating system of the city of The Hague consists of a deep doublet in a Jurassic sandstone layer that is designed for a production temperature of 75 °C and a reinjection temperature of 40 °C at a flow rate of 150 m3 h-1. The prediction of reservoir temperature and production behavior is crucial for success of the proposed geothermal doublet. This work presents the results of a study of the important geothermal and geohydrological issues for the doublet design. In the first phase of the study, the influences of the three-dimensional (3D) structures of anticlines and synclines on the temperature field were examined. A comprehensive petrophysical investigation was performed to build a large scale 3D-model of the reservoir. Several bottomhole temperatures (BHTs), as well as petrophysical logs were used to calibrate the model using thermal conductivity measurements on 50 samples from boreholes in different lithological units in the study area. Profiles and cross sections extracted from the calculated temperature field were used to study the temperature in the surrounding areas of the planned doublet. In the second phase of the project, a detailed 3D numerical reservoir model was set up, with the aim of predicting the evolution of the producer and injector temperatures, and the extent of the cooled area around the injector. The temperature model from the first phase provided the boundary conditions for the reservoir model. Hydraulic parameters for the target horizons, such as porosity and permeability, were taken from data available from the nearby exploration wells. The simulation results are encouraging as no significant thermal breakthrough is predicted. For the originally planned location of the producer, the extracted water temperature is predicted to be around 79 °C, with an almost negligible cooling in the first 50 years of production. When the producer is located shallower parts of the reservoir, the yield water temperatures is lower, starting at ≈76 °C and decreasing to ≈74 °C after 50 years of operation. This comparatively larger decrease in temperature with time is caused by the structural feature of the reservoir, namely a higher dip causes the cooler water to easily move downward. In view of the poor reservoir data, the reservoir simulation model is constructed to allow iterative updates using data assimilation during planned drilling, testing, and production phases. Measurements during an 8 h pumping test carried out in late 2010 suggest that a flow rate of 150 m3 h-1 is achievable. Fluid temperatures of 76.5 °C were measured, which is very close to the predicted value.},
  language  = {en}
}
@article{MottaghyRath2006,
  author    = {Mottaghy, Darius and Rath, Volker},
  title     = {Latent heat effects in subsurface heat transport modelling and their impact on palaeotemperature reconstructions},
  series = {Geophysical Journal International},
  volume    = {164},
  journal   = {Geophysical Journal International},
  number    = {1},
  issn      = {1365-246X},
  doi       = {10.1111/j.1365-246X.2005.02843.x},
  pages     = {236 -- 245},
  year      = {2006},
  language  = {en}
}
@article{MottaghySchellschmidtPopovetal.2005,
  author    = {Mottaghy, Darius and Schellschmidt, R. and Popov, Y. A. and Clauser, C. and Kukkonen, I. T. and Nover, G. and Milanovsky, S. and Romushkevich, R. A.},
  title     = {New heat flow data from the immediate vicinity of the Kola super-deep borehole: Vertical variation in heat flow density confirmed and attributed to advection},
  series = {Tectonophysics},
  volume    = {401},
  journal   = {Tectonophysics},
  number    = {1-2},
  issn      = {1879-3266},
  doi       = {10.1016/j.tecto.2005.03.005},
  pages     = {119 -- 142},
  year      = {2005},
  language  = {en}
}
@article{MottaghySchwambornRath2013,
  author    = {Mottaghy, Darius and Schwamborn, G. and Rath, V.},
  title     = {Past climate changes and permafrost depth at the Lake El'gygytgyn site: implications from data and thermal modeling},
  series = {Climate of the Past},
  volume    = {9},
  journal   = {Climate of the Past},
  number    = {1},
  publisher = {Copernicus},
  address   = {Katlenburg-Lindau},
  issn      = {1814-9332},
  doi       = {10.5194/cp-9-119-2013},
  pages     = {119 -- 133},
  year      = {2013},
  language  = {en}
}
@article{MottaghyVosteenSchellschmidt2008,
  author    = {Mottaghy, Darius and Vosteen, Hans-Dieter and Schellschmidt, R{\"u}diger},
  title     = {Temperature dependence of the relationship of thermal diffusivity versus thermal conductivity for crystalline rocks},
  series = {International Journal of Earth Sciences},
  volume    = {97},
  journal   = {International Journal of Earth Sciences},
  number    = {2},
  issn      = {1437-3262},
  doi       = {10.1007/s00531-007-0238-3},
  pages     = {435 -- 442},
  year      = {2008},
  language  = {en}
}
@article{RathMottaghy2014,
  author    = {Rath, V. and Mottaghy, Darius},
  title     = {Klimainformation aus dem Untergrund?},
  series = {Geographische Rundschau},
  volume    = {66},
  journal   = {Geographische Rundschau},
  number    = {7-8},
  publisher = {Westermann},
  address   = {Braunschweig},
  issn      = {0016-7460},
  pages     = {30 -- 36},
  year      = {2014},
  language  = {de}
}
@article{RathMottaghy2007,
  author    = {Rath, V. and Mottaghy, Darius},
  title     = {Smooth inversion for ground surface temperature histories: estimating the optimum regularization parameter by generalized cross-validation},
  series = {Geophysical Journal International},
  volume    = {171},
  journal   = {Geophysical Journal International},
  number    = {3},
  issn      = {1365-246X},
  doi       = {10.1111/j.1365-246X.2007.03587.x},
  pages     = {1440 -- 1448},
  year      = {2007},
  language  = {en}
}