-
Bangalore Lakshmiprasad, R., Peth, S., Karoline Woche, S., and Graf, T.
(2023):
Characterization of lowland permafrost mires in subarctic Sweden,
EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023
DOI:
10.5194/egusphere-egu23-232
-
Bangalore Lakshmiprasad, R., Graf, T., Zhang, F., Xiao, X., and Coon, E. T.
(2022):
A comparison study of process complexity in permafrost dominated regions,
EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022
DOI:
10.5194/egusphere-egu22-7266
-
Sämann R., T. Graf, I. Neuweiler
(2021):
Selecting velocity fields in urban pluvial floods from pre-calculated data,
IAHR Europe Congress - Hydro-environment Research and Engineering - No Frames, No Borders, Warsaw, Poland
-
Tran, T., T. Graf
(2018):
Concept proposal of project W1: Modeling climate change impact on water budgets using an integrated surface-subsurface approach,
IRTG TransTiP Kick-Off Meeting 2018, 02/2018, Braunschweig, Germany
-
Peche, A., T. Graf, L. Fuchs, I. Neuweiler
(2017):
Coupling Pipe Water and Groundwater to quantify Pipe Leakage,
4th International Hydrogeosphere User Conference 03/2017, Bayreuth, Germany
-
Cremer, C.J.M., A. Peche, L-B. Thiele, T. Graf, I. Neuweiler
(2017):
A Bézier-Spline-based Model for the Simulation of Hysteresis in Variably Saturated Soil,
GU 04/2017, Poster Programme, Vienna, Austria
-
Tran, T., T. Graf
(2017):
Simulation of Thermal Dispersion in Porous Media with OGS and TransTiP: OGS-Application in Tibet,
OpenGeoSys Community Meeting 2017, 12/2017, Leipzig, Germany
-
Peche, A., T. Graf, L. Fuchs, I. Neuweiler
(2017):
Urban catchment scale simulation of pipe leakage with OGS-HE,
OpenGeoSys Community Meeting 2017, 12/2017, Leipzig, Germany
-
Peche A., L. Fuchs, P. Spönemann, T. Graf, I. Neuweiler
(2016):
Ein voll gekoppeltes Modell zur Quantifizierung von Leckage aus defekten Rohrleitungen,
FH-DGGV-Tagung, 04/2016, Karlsruhe, Germany
-
Peche, A., T. Graf, L. Fuchs, I. Neuweiler
(2016):
A coupled approach for 3D dynamic subsurface pipe leakage modeling in variably saturated soil,
OpenGeoSys Community Meeting 2016, 12/2016, Leipzig, Germany
-
Peche, A., L. Fuchs, P. Spönemann, T. Graf, I. Neuweiler
(2016):
A catchment scale groundwater model including sewer pipe leakage in an urban system,
EGU 04/2016, Poster Session, Vienna, Austria
-
Peche, A., T. Graf, L. Fuchs, I. Neuweiler
(2016):
Upscaling pipe leakage: From single defect to street scale
modeling,
nterPore: First General Assembly of German Chapter 12/2016, Oral Programme, Leipzig, Germany
-
Graf T., J. Yang, T. Ptak
(2015):
Simulating coastal flow dynamics in a heterogeneous aquifer near Bremerhaven, North Germany,
75th Annual Meeting of the DGG (Deutsche Geophysikalische Gesellschaft), 03/2015, Hannover, Germany
-
Stöckl L., M. Walther, T. Graf
(2015):
The freshwater lens problem: a new benchmark for density-driven flow and solute transport,
feflow 2015, 09/2015, Berlin, Germany
-
Peche A., P. Spönemann, L. Fuchs, T. Graf, I. Neuweiler
(2015):
Coupling OpenGeoSys with HYSTEM-EXTRAN: A model for the simulation of pipe leakage ,
OGS Community Meeting 2015, 12/2015, Leipzig, Germany
-
Graf T., J. Yang, T. Ptak
(2015):
Simulating coastal flow dynamics in a heterogeneous aquifer near Bremerhaven, North Germany,
75th Annual Meeting of the DGG (Deutsche Geophysikalische Gesellschaft), Hannover, Germany
-
Stöckl, L., T. Graf
(2015):
On a new benchmark for the simulation of saltwater intrusion,
General Assembly of the European Geosciences Union (EGU), Geophysical Research Abstracts, EGU2015-1928, Vienna, Austria
-
Guerara Morel, C.R., C. Cremer, T. Graf
(2015):
Benchmarking variable-density flow in saturated and unsaturated porous media,
General Assembly of the European Geosciences Union (EGU), Geophysical Research Abstracts, EGU2015-1456, Vienna, Austria
-
Peche A., A. Toewe, L. Fuchs, P. Spönemann, T. Graf, I. Neuweiler
(2015):
A fully coupled urban subsurface flow model ,
NUPUS 2015, Poster Programme, Freudenstadt, Germany
-
Graf T., J. Yang, T. Ptak
(2015):
Three–Dimensional Simulation of Coastal Flow Dynamics Subject to Climatic Change,
EGU 2015, Poster Programme, 04/2015, Vienna, Austria
-
Sebben M.L., A.D. Werner, T. Graf
(2014):
Seawater intrusion in fractured coastal aquifers: prelimenary investigations using a discretely fractured Henry problem,
23rd Salt Water Intrusion Meeting (SWIM), 06/2014, Husum, Germany
-
Walther M., L. Bilke, J.-O. Delfs, T. Graf, J. Grundmann, R. Liedl, O. Kolditz
(2014):
Evaluating remediation potential of a salinized heterogeneous aquifer system using three-dimensional, density-dependent groundwater modeling,
23rd Salt Water Intrusion Meeting (SWIM), 06/2014, Husum, Germany
-
Yang J., T. Graf, T. Ptak
(2014):
Investigation of climate change impacts to the coastal aquifer of North Germany: A 3D modelling study,
AGU Fall Meeting, Abstract No. H41G-0902, 12/2014, San Francisco, Ca, USA
-
Graf T., C. R. Guevara Morel, E. M. Hirthe, K. Vujevic, J. Yang
(2014):
Characterizing aquifer heterogeneity for variable–density flow processes,
German-Sino Workshop on Aquifer Heterogeneity Characterization, 09/2014, Xi'an, China
-
Guevara C., T. Graf
(2014):
A Laboratoty Experiment of Fingertip Splitting During Variable-Density Flow,
Salt Water Intrusion Meeting (SWIM), 06/2014, Husum, Germany
-
Guevara C., T. Graf
(2014):
Evaluating the Numerical Approximations Used for the Numerical Simulation of Variable-Density Flow in Porous Media,
Poster Programme, CMWR 2014, 06/2014, Stuttgart, Germany
-
Cremer C., C. Guevara, N. Goldau, T. Graf
(2014):
On the Development of Instabilities under Density-Driven Flow Conditions in Saturated Porous Media: Physical and Numerical experiments,
Poster Programme, Salt Water Intrusion Meeting (SWIM), 06/2014, Husum, Germany
-
Hirthe, E. and T. Graf
(2013):
Optimizing numerical simulation of fracture networks for variable density-flow,
Freshwater-saltwater interactions and density-driven flow, Poster Programme. EGU 04/2013, Vienna, Austria
-
Broda S., D. Blessent, M. Aubertin, E. Hirthe and T. Graf
(2013):
Conceptual model suitability for reproducing peferential flow in waste rock,
3rd International HydroGeoSphere User Conference, Neuchâtel, Switzerland
-
Broda S., E.M. Hirthe, D. Blessent, M. Aubertin, T. Graf
(2013):
Using random discrete fractures for representing preferential flow in waste rock piles with compacted layers.,
66th Canadian Geotechnical Conference (GeoMontreal 2013), 10/2013, Montreal, Canada
-
Hirthe E. and T. Graf
(2013):
Optimizing numerical simulation of fracture networks for variable-density flow,
3rd International HydroGeoSphere User Conference, Neuchâtel, Switzerland
-
Vujević, K. and T. Graf
(2013):
Density-dependent flow and transport in fracture networks for variable-density flow,
3rd International HydroGeoSphere User Conference, Neuchâtel, Switzerland
-
Vujević, K. and T. Graf
(2013):
Effect of fracture network geometry on density-driven flow in fractured porous rock,
Freshwater-saltwater interactions and density-driven flow, Poster Programme. EGU 04/2013, Vienna, Austria
-
Walther M., T. Graf, O. Kolditz and R. Liedl
(2013):
Discretizing a thermohaline double-diffusive Rayleigh regime,
3rd International HydroGeoSphere User Conference, Neuchâtel, Switzerland
-
Walther M., L. Bilke, J.-O. Delfs, T. Graf, J. Grundmann, O. Kolditz, R. Liedl
(2013):
Visualization of transient calibration and szenario simulations of a three-dimensional, heterogeneous, density-dependent groundwater model,
Eurographics Conference on Visualization (EuroVis), 06/2013, New York, USA
-
Yang J., T. Graf, M. Herold and T. Ptak
(2013):
Investigating tide and storm surge effects on coastal aquifers using a three-dimensional coupled surface-subsurface approach,
3rd International HydroGeoSphere User Conference, Neuchâtel, Switzerland
-
Yang J., T. Graf, M. Herold and T. Ptak
(2013):
Insights into three-dimensional simulation of coastal flow dynamics using a fully coupled surface-subsurface approach,
Freshwater-saltwater interactions and density-driven flow, Poster Programme. EGU 04/2013, Vienna, Austria
-
Guevara C. and T. Graf
(2013):
Evaluation of the Oberbeck-Boussinesq Approximation for the numerical simulation of variable-density flow and solute transport in porous media,
Freshwater-saltwater interactions and density-driven flow, Oral Programme. EGU 04/2013, Vienna, Austria
-
Guevara, C. and T. Graf
(2013):
Implementation of the Extended Oberbeck-Boussinesq Approximation for the numerical simulation of variable-density groundwater flow and solute transport,
3rd International HydroGeoSphere User Conference, Neuchâtel, Switzerland
-
Cremer, C. and T. Graf
(2012):
Numerical generation of dense plume fingers in unsaturated
homogeneous porous media,
Freshwater-saltwater interactions and density-driven flow, EGU 04/2012, Vienna, Austria
-
Hirthe, E and T. Graf
(2012):
Non-iterative adaptive time stepping with truncation error control for
simulating variable-density flow,
Freshwater-saltwater interactions and density-driven flow, Oral Programme. EGU 04/2012, Vienna, Austria
-
Graf, T.
(2012):
Overview of current csmulation capacities of coupled thermohaline –
variably saturated flow using HydroGeoSphere,
Freshwater-saltwater interactions and density-driven flow, Poster Programme. EGU 04/2012, Vienna, Austria
-
Yang, J. and T. Graf
(2012):
Simulation of a storm surge event at the North Sea (Germany) using a
fully coupled approach,
Freshwater-saltwater interactions and density-driven flow, Poster Programme. EGU 04/2012, Vienna, Austria
-
Walther M., J. Delfs, T. Graf, A. Al-Saidi, J. Grundmann, O. Kolditz, R. Liedl
(2012):
Case study of the groundwater resources usage for a coastal arid region in the Al Batinah, Oman,
Hydrogeology of Arid Environments 2013, BGR Hannover, Germany
-
Vujević, K., Graf, T.
(2012):
Modes of free convective flow in discretely-fractured porous rock,
Tagung der Fachsektion Hydrogeologie 2013, Dresden, Germany
-
Yang J., T. Graf, M. Herold, T. Ptak
(2012):
Modelling of saltwater inrusion: a new fully coupled surface-subsurface approach,
22nd Salt Water Intrusion Meeting 2013, Búzios, Brazil
-
Yang, J., Graf, T., Herold, M., Ptak, T.
(2011):
Tidal beach dynamics: a fully integrated approach,
2nd international HydroGeoSphere User Conference 04/2011. Hannover, Germany
-
Cremer, C., Graf, T.
(2011):
Perturbing high-density plume transport in homogeneous aquifers,
2nd International HydroGeoSphere User Conference, 04/2011. Hannover, Germany
-
Graf, T.
(2011):
Coupled thermohaline variable-density and variably saturated flow in 3D: Current simulation options in HydroGeoSphere,
2nd international HydroGeoSphere User Conference, 04/2011. Hannover, Germany
-
Herold, M., Yang, J., Graf, T., Ptak, T.
(2011):
Saltwater intrusion and storm surge processes in cuastal areas under climate change. A modelling study in Northern Germany,
2nd International HydroGeoSphere User Conference, 04/2011. Hannover, Germany
-
Lange, T., Graf, T., Sauter, M.
(2011):
Parameter sensitivities for helium-4 accumulation in groundwater due to in-situ production in dual porosity aquifers,
Fissured and karstified aquifers. Poster Programme. EGU 04/2011, Vienna, Austria
-
Graf, T., Cremer, C.
(2011):
Numerical Generation of Dense Plume Fingers in Saturated Homogeneous Porous Media,
Combining modelling and measuring to improve understanding of subsurface flow and transport systems, Oral Programme. EGU 04/2011, Vienna, Austria
-
Vujević, K., Graf, T.
(2011):
Modes of free convective flow in fractured-porous rock (Vortrag),
2nd international HydroGeoSphere User Conference 04/2011. Hannover, Germany
-
Cremer, C., T. Graf
(2011):
Perturbing high-density plume transport in homogeneous aquifers,
2nd International HydroGeoSphere User Conference, 04/2011. Hannover, Germany
-
Graf, T., Mustapha, H., Dimitrakopoulos, R., Firoozabadi, A.
(2010):
A Method to Discretize Fractures for 3D Numerical Simulations,
Fissured and karstified aquifers, Poster Programme. EGU 05/2010, Vienna, Austria
-
Geyer, T., Sültenfuß, J., Eichinger, F., Graf, T., Sauter, M.
(2010):
Influence of the unsaturated zone on transit time distribution of water in karst systems,
Annual Meeting of the Geological Society of America, 11/2010, Denver CO, USA
-
Graf, T.
(2010):
Recent model development: Coupled variable-density and variably saturated flow in porous media,
1st HydroGeoSphere Workshop, 3/2010, Liège, Belgium
-
Graf, T., Therrien, R.
(2010):
Incorporating irregular fracture geometry in the study of variable-density groundwater flow and solute transport in discretely-fractured media,
Annual Meeting of the Geological Society of America, 11/2003, Seattle WA, USA
-
Graf, T., Diersch, H.J.G., Simmons, CT.
(2009):
On the existence of oscillatory-convective thermohaline flow in sedimentary basins,
AGU-IAH Joint Assembly, 05/2009, Toronto ON, Canada.
-
Sauter, M., Geyer, T., Graf, T.
(2008):
Investigating conduit-matrix exchange processes in karst aquifers,
Annual Meeting of the Geological Society of America, 10/2008, Houston TX, USA.
-
Graf, T., Simmons, C.T.
(2008):
Quantification of variable-density groundwater flow and solute transport in fractured rock: A modification of the Tang et al. [1981] problem,
General Assembly of the European Geosciences Union, 04/2008, Vienna, Austria.
-
Graf, T., Therrien, R.
(2007):
Benchmarking three-dimensional variable-density flow in fractured porous media,
Annual Meeting of the Geological Society of America, 10/2007, Denver CO, USA.
-
Graf, T.
(2007):
Effect of single-species reactive solute transport on thermohaline groundwater flow in fractured porous media,
Conference of the Society for Industrial and Applied Mathematics (SIAM) on Mathematical and Computational Issues in the Geosciences, 03/2007, Santa Fe NM, USA.
-
Therrien, R., Graf, T.
(2007):
Modelling results - task 7A1,
Äspö Task Force Meeting 22, 01/2007, Stockholm, Sweden.
-
Simmons, C.T., Bauer-Gottwein, P., Graf, T., Kinzelbach, W., Kooi, H., Li, L., Post V, Prommer, H., Therrien, R., Voss, C., Ward, J., Werner, A.
(2007):
Variable density groundwater flow: from modelling to applications,
GWADI workshop, 06/2007, Lanzhou, China.
-
Graf, T., Therrien, R.
(2006):
Discretizing non-planar discrete fractures for 3D numerical flow and transport simulations,
Annual Meeting of the Geological Society of America, 10/2006, Philadelphia PA, USA.
-
Sudicky, E.A., Brookfield, A.E., Colautti, D., Jones, J.P., Park, Y.J., Therrien, R., Graf, T.
(2006):
Simulating flow, heat and contaminant transport in integrated surface-subsurface modelling framework,
Annual Conference of the International Association of Hydrological Sciences, 10/2006, Karlovy Vary, Czech Republic.
-
Therrien, R., Graf, T.
(2006):
Task 7A: Preliminary results,
Äspö Task Force Workshop, 03/2006, Paris, France.
-
Therrien, R., Graf, T., Park, Y.J., Sudicky, E.A.
(2006):
Modeling fluid flow and mass transport in fractured porous media,
Annual Meeting of the Geological Society of America, 10/2006, Philadelphia PA, USA.
-
Sudicky, E.A., Park, Y.J., Unger, A.J.A., Jones, JP., Graf, T., Therrien, R.
(2006):
Simulating complex flow and contaminant transport dynamics in an integrated surface-subsurface modelling framework,
Annual Meeting of the Geological Society of America, 10/2006, Philadelphia PA, USA.
-
Graf, T., Therrien, R.
(2005):
Modeling coupled variable-density flow and reactive solute transport in discretely-fractured porous media,
Annual Meeting of the Geological Society of America, 10/2005, Salt Lake City UT, USA.
-
Graf, T., Therrien, R.
(2005):
Modelling thermohaline variable-density flow and solute transport in fractured porous media,
ModelCARE Conference, 06/2005, The Hague, Netherlands.
-
Therrien, R., Graf, T.
(2005):
Task 7: Modelling approach and preliminary results,
Äspö Task Force Workshop, 09/2005, Stockholm, Sweden.
-
Graf, T., Therrien, R.
(2004):
Modeling variable-density groundwater flow and solute transport in complex fracture networks,
57th Canadian Geotechnical Conference, 10/2004, Quebec City QC, Canada.
-
Graf, T., Therrien, R.
(2004):
On the use of the Elder (1967) convection experiment as a benchmark problem for variable-density groundwater flow models,
Annual Meeting of the Geological Society of America, 11/2004, Denver CO, USA.
-
Graf, T., Therrien, R.
(2003):
Incorporating irregular fracture geometry in the study of variable-density groundwater flow and solute transport in discretely-fractured media,
Annual Meeting of the Geological Society of America, 11/2003, Seattle WA, USA
