Alumni
Dr.-Ing. Amin Bakhshipour
Iran
Title of Doctoral Thesis:
Optimizing Hybrid Decentralized Systems for Sustainable Urban Drainage Infrastructures
Supervisor: Prof. Dr.-Ing. Wolfgang Nowak
Date of Defense: January 12, 2021
Dr.-Ing. Moritz Thom
Germany
Title of Doctoral Thesis:
Towards a Better Understanding of Biostabilization Mechanisms on Sediment Beds
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: July 17, 2019
Dr.-Ing. Karen Mouarkech
Lebanon
Title of Doctoral Thesis:
Combined Energy and Phosphorus Recovery from Black Water, Co-Substrates and Urine
Supervisor: Prof. Dr.-Ing. Heidrun Steinmetz
Date of Defense: December 17, 2018
Dr.-Ing. Jieru Yan
China
Title of Doctoral Thesis:
Non-linear Estimation of Short Time Precipitation using WeatherRadar and Surface Observation
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: November 28, 2018
Dr.-Ing. Christoph Schröder
Germany
Title of Doctoral Thesis:
Large-scale High Head Pico Hydropower Potential Assessment
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: April 27, 2018
Dr.-Ing. Holger Schmidt
Germany
Title of Doctoral Thesis:
Microbial Stabilization of Lotic Fine Sediments
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: November 10, 2017
Dr.-Ing. Eva Fenrich
Germany
Title of Doctoral Thesis:
Entwicklung eines ökologisch-ökonomischen Vernetzungsmodells für Wasserkraftanlagen und Mehrzweckspeicher
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: November 7, 2017
Dr.-Ing. Tobias Mosthaf
Germany
Title of Doctoral Thesis:
New Concepts for Regionalizing Temporal Distributions of Precipitation and for its Application in Spatial Rainfall Simulation
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: November 6, 2017
Dr.-Ing. Thomas Müller
Germany
Title of Doctoral Thesis:
Generation of a Realistic Temporal Structure of Synthetic Precipitation Time Series for Sewer Applications
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: November 6, 2017
Dr.-Ing. Suroso
Indonesia
Title of Doctoral Thesis:
Asymmetric Dependence Based Spatial Copula Models: Empirical Investigations and Consequences on Precipitation Fields
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: July 25, 2017
Dr.-Ing. Pengfei Wang
China
Title of Doctoral Thesis:
Phosphorus recovery from wastewater via struvite crystallization in a fluidized bed reactor: Influence of operation parameters and reactor design on efficiency and product quality
Supervisor: Prof. Dr.-Ing. Heidrun Steinmetz
Date of Defense: March 27, 2017
Dr.-Ing. Kenan Guney
Turkey
Title of Doctoral Thesis:
Investigating Water Reusability in Cotton Processing Textile Dye-house by Applying Membrane Filtration
Supervisor: Prof. Dr.-Ing. Heidrun Steinmetz
Date of Defense: November 11, 2016
Dr.-Ing. Mehari Goitom Haile
Eritrea
Title of Doctoral Thesis:
Accounting for Uncertainties in the Modelling of CSO Emissions
Supervisor: Prof. Dr.-Ing. Heidrun Steinmetz
Date of Defense: October 26, 2016
Dr.-Ing. Stephen Oppong Kwakye
Ghana
Title of Doctoral Thesis:
Study on the Effects of Climate Change on the Hydrology of the West African sub-region
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: October 25, 2016
Dr.-Ing. Yingchun Huang
China
Title of Doctoral Thesis:
Study on the Spatial and Temporal Transferability of Conceptual Hydrological Models
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: October 7, 2016
Dr.-Ing. Matthias Kramer
Germany
Title of Doctoral Thesis:
Luftbedarf von Freistrahlturbinen im Gegendruckbetrieb
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: November 25, 2015
Dr.-Ing. Nicole Kretschmer
Germany
Title of Doctoral Thesis:
Impacts of the Existing Water Allocation Scheme on the Limari Watershed - Chile, an Integrative Approach
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: October 22, 2015
Dr.-Ing. Peace Korshiwor Amoatey
Ghana
Title of Doctoral Thesis:
Leakage Management in Ghana's Urban Water Network: Estimation, Detection Modeling for Maintenance Planning
Supervisor: Prof. Dr.-Ing. Heidrun Steinmetz
Date of Defense: July 21, 2015
Dr.-Ing. Yulizar
Indonesia
Title of Doctoral Thesis:
Investigation of the Changes in Dependence in Hydroclimatological Time Series
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: May 13, 2015
Dr.-Ing. Diego Salamanca Velandia
Colombia
Title of Doctoral Thesis:
Degradation of cycloalkanes and n-alkanes in the water phase of biotrickling filter systems
Supervisor: Prof. Dr. K.-H. Engesser
Date of Defense: December 22, 2014
Dr.-Ing. Kristy Pena Munoz
Mexico
Title of Doctoral Thesis:
Evaluation of specific sludge pre-treatment methods and process parameters on a two-stage anaerobic process for Bio-hydrogen and Bio-methane production
Supervisor: Prof. Dr.-Ing. Heidrun Steinmetz
Date of Defense: October 23, 2014
Dr.-Ing. Jin Zhang
China
Title of Doctoral Thesis:
Investigations on urban river regulation and ecological rehabilitation measures: case of Shenzhen River in China
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: July 24, 2014
Dr.-Ing. Rüdiger Siebel
Germany
Title of Doctoral Thesis:
Experimentelle Untersuchungen zur hydrodynamischen Belastung und Standsicherheit von Deckwerken an überströmbaren Erddämmen
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: July 11, 2014
Dr.-Ing. Takayuki Sugimoto
Japan
Title of Doctoral Thesis:
Copula based stochastic analysis of discharge time series
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: May 8, 2014
Dr.-Ing. Maria Magdalena Eder
Germany
Title of Doctoral Thesis:
Climate Sensitivity of a Large Lake
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: October 15, 2013
Dr.-Ing. Jhan Rodriguez
Venezuela
Title of Doctoral Thesis:
High order interactions among environmental variables : diagnostics and initial steps towards modeling
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: October 15, 2013
Dr.-Ing. Philipp Greiner
Germany
Title of Doctoral Thesis:
Alkoholinjektion zur In-situ-Sanierung von CKW-Schadensherden in Grundwasserleitern : Charakterisierung der relevanten Prozesse auf unterschiedlichen Skalen
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: April 15, 2013
Dr.-Ing. Hans-Henning Lebrenz
Germany
Title of Doctoral Thesis:
Addressing the input uncertainty for hydrological modeling by a new geostatistical method
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: December 17, 2012
Dr.-Ing. Alexandru-Bogdan Tatomir
Romania
Title of Doctoral Thesis:
From Discrete to Continuum Concepts of Flow in Fractured Porous Media
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: February 15, 2012
Dr.-Ing. Habtamu Gezahegn Tolossa
Ethiopia
Title of Doctoral Thesis:
Sediment Transport Computation Using a Data-Driven Adaptive Neuro-Fuzzy Modelling Approach
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: January 11, 2012
Dr.-Ing. Jeffrey Andrew Tuhtan
USA
Title of Doctoral Thesis:
Including the Second Law Inequality in Aquatic Ecodynamics: A Modeling Approach for Alpine Rivers Impacted by Hydropeaking
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: December 7, 2011
Dr.-Ing. Dung Viet Nguyen
Vietnam
Title of Doctoral Thesis:
Multi-objective automatic calibration of hydrodynamic models – development of the concept and an application in the Mekong Delta
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: September 16, 2011
Dr.-Ing. Hung Nghia Nguyen
Vietnam
Title of Doctoral Thesis:
Sediment dynamics in the floodplain of the Mekong Delta, Vietnam
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: September 16, 2011
Dr.-Ing. Bakimchandra Oinam
India
Title of Doctoral Thesis:
Geospatial and Multi-Temporal Based Environmental Assessment: an Integrated Fuzzy-GIS and Remote Sensing Approach
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: May 17, 2011
Dr.-Ing. Habtamu Itefa Geleta
Ethiopia
Title of Doctoral Thesis:
Watershed Sediment Yield Modeling for Data Scarce Areas
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: December 14, 2010
Dr.-Ing. Min Liu
China
Title of Doctoral Thesis:
Study of Topographic Effects on Hydrological Patterns and the Implication on Hydrological Modeling and Data Interpolation
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: November 29, 2010
Dr.-Ing. Mehmet Onur Dogan
Turkey
Title of Doctoral Thesis:
Coupling of Porous Media Flow with Pipe Flow
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: November 19, 2010
Dr.-Ing. Shailesh Kumar Singh
India
Title of Doctoral Thesis:
Robust Parameter Estimation in Gauged and Ungauged Basins
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: October 25, 2010
Dr.-Ing. Abror Gafurov
Usbekistan
Title of Doctoral Thesis:
Water Balance Modeling Using Remote Sensing Information - Focus on Central Asia
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: July 27, 2010
Dr.-Ing. Amir Aghakouchak
Iran
Title of Doctoral Thesis:
Simulation of Remotely Sensed Rainfall Fields Using Copulas
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: February 8, 2010
Dr.-Ing. Jing Li
China
Title of Doctoral Thesis:
Application of Copulas as a New Geostatistical Tool
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: January 15, 2010
Dr.-Ing. Pawan Thapa
Nepal
Title of Doctoral Thesis:
Physically-Based Spatially Distributed Rainfall Runoff Modelling for Soil Erosion Estimation
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: December 22, 2009
Dr.-Ing. Milos Vasin
Serbia
Title of Doctoral Thesis:
Influence of the Soil Structure and Property Contrast on Flow and Transport in the Unsaturated Zone
Supervisor: Prof. Dr.-Ing. Rainer Helmig, Prof. Dr. rer. nat. Insa Neuweiler
Date of Defense: December 11, 2009
Dr.-Ing. Darla Nickel
USA
Title of Doctoral Thesis:
Erfassung und Bewertung des Einflusses von gebietsstrukturellen Eigenschaften auf Trinkwasserpreise
Supervisor: Prof. Dr.-Ing. Ulrich Rott
Date of Defense: July 2, 2009
Dr.-Ing. Carla Cimatoribus
Italy
Title of Doctoral Thesis:
Simulation and Nonlinear Control of Anaerobic Digestion
Supervisor: Prof. Dr.-Ing. Martin Kranert
Date of Defense: June 24, 2009
Dr.-Ing. Andreas Kopp
Germany
Title of Doctoral Thesis:
Evaluation of CO2 Injection Processes in Geological Formations for Site Screening
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: May 28, 2009
Dr.-Ing. Anozie Ebigo
Germany
Title of Doctoral Thesis:
Modelling of Biofilm Growth and its Influence on CO2 and Water (Two-Phase) Flow in Porous Media
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: May 25, 2009
Dr.-Ing. Syawal Satibi
Indonesia
Title of Doctoral Thesis:
Numerical Analysis and Design Criteria of Embankments on Floating Piles
Supervisor: Prof. Dr.-Ing. Pieter A. Vermeer
Date of Defense: May 13, 2009
Dr.-Ing. Saqib Ehsan
Pakistan
Title of Doctoral Thesis:
Evaluation of Life Safety Risks Related to Severe Flooding
Supervisor: Prof. Dr.-Ing. Silke Wieprecht
Date of Defense: March 9, 2009
Dr.-Ing. Khaja Zillur Rahman
Bangladesh
Title of Doctoral Thesis:
Treatment of Arsenic Containing Artificial Wastewater in Different Laboratory-Scale Constructed Wetlands
Supervisor: Prof. Dr.-Ing. Ulrich Rott
Date of Defense: March 6, 2009
Dr.-Ing. Sandra Prohaska
Serbia
Title of Doctoral Thesis:
Development and Application of a 1D Multi-Strip Fine Sediment Transport Model for Regulated Rivers
Supervisor: Prof. Dr.-Ing. habil. Bernhard Westrich
Date of Defense: February 23, 2009
Dr.-Ing. Sandra Freiboth
Germany
Title of Doctoral Thesis:
A Phenomenological Model for the Numerical Simulation of Multiphase, Multicomponent Processes Considering Structural Alternations of Porous Media
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: December 18, 2008
Dr.-Ing. Anongnart Assteerawatt
Thailand
Title of Doctoral Thesis:
Flow and Transport Modelling of Fractured Aquifers Based on a Geostatistical Approach
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: July 21, 2008
Dr.-Ing. Sachin Patil
India
Title of Doctoral Thesis:
Regionalization of an Event Based Nash Cascade Model for Flood Predictions in Ungauded Basins
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: July 15, 2008
Dr.-Ing. Beau Freemann
USA
Title of Doctoral Thesis:
Modernization Criteria Assessment for Water Resources Planning; Klamath Irrigation Project, U.S.
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: July 10, 2008
Dr.-Ing. Alexandros Papafotiou
Greece
Title of Doctoral Thesis:
Numerical Investigations of the Role of Hysteresis in Heterogeneous Two-Phase Flow Systems
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: February 25, 2008
Dr.-Ing. Ayman Abed
Syria
Title of Doctoral Thesis:
Numerical Modeling of Expansive Soil Behavior
Supervisor: Prof. Dr.-Ing. Pieter A. Vermeer
Date of Defense: February 22, 2008
Dr.-Ing. Consolata Russelli
Italy
Title of Doctoral Thesis:
Probabilistic Methods Applied to the Bearing Capacity Problem
Supervisor: Prof. Dr.-Ing. Pieter A. Vermeer
Date of Defense: February 14, 2008
Dr.-Ing. Yi He
China
Title of Doctoral Thesis:
Application of a Non-parametric Classification Scheme to Catchment Hydrology
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: February 1, 2008
Dr.-Ing. Ianina Kopecki
Russia
Title of Doctoral Thesis:
Calculational Approach to FST-Hemispheres for Multiparametrical Benthos Habitat Modelling
Supervisor: Prof. Dr.-Ing. Jürgen Giesecke
Date of Defense: January 8, 2008
Dr.-Ing. Wei Yang
China
Title of Doctoral Thesis:
Discrete-Continuous Downscaling Model for Generating Daily Precipitation Time Series
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: October 25, 2007
Dr.-Ing. Aleksandar Trifkovic
Bosnia & Herzegowina
Title of Doctoral Thesis:
Multi-Objective and Risk-Based Modelling Methodology for Planning, Design and Operation of Water Supply Systems
Supervisor: Prof. Dr.-Ing. Ulrich Rott
Date of Defense: July 3, 2007
Dr.-Ing. Tesfaye Kebede Gurmessa
Ethiopia
Title of Doctoral Thesis:
Numerical Investigation on Flow and Transport Characteristics to Improve Long-Term Simulation of Reservoir Sedimentation
Supervisor: Prof. Dr.-Ing. habil. Bernhard Westrich
Date of Defense: June 21, 2007
Dr.-Ing. Carla Böhl - Pinheiro
Portugal
Title of Doctoral Thesis:
Development of a Knowledge Based Decision Support for Private Sector Participation in Water and Sanitation Utilities
Supervisor: Prof. Dr.-Ing. Ulrich Rott, Prof. David Stephenson
Date of Defense: May 9, 2007
Dr.-Ing. Oscar Pozos Estrada
Mexico
Title of Doctoral Thesis:
Investigation on the Effects of Entrained Air in Pipelines
Supervisor: Prof. Dr.-Ing. Jürgen Giesecke
Date of Defense: January 10, 2007
Dr.-Ing. Steffen Ochs
Germany
Title of Doctoral Thesis:
Steam Injection into Saturated Porous Media -Process Analysis Including Experimental and Numerical Investigations-
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: December 18, 2006
Dr.-Ing. Jens Mödinger
Germany
Title of Doctoral Thesis:
Entwicklung eines Bewertungs- und Entscheidungsunterstützungssystems für eine nachhaltige regionale Grundwasserbewirtschaftung
Supervisor: Prof. Dr.-Ing. Helmut Kobus
Date of Defense: December 5, 2006
Dr.-Ing. Birgit Memminger
Germany
Title of Doctoral Thesis:
Aufbereitung von Spülwässern bei der hydraulischen In-situ-Sanierung
Supervisor: Prof. Dr.-Ing. Ulrich Rott
Date of Defense: December 4, 2006
Dr.-Ing. Tapash Das
India
Title of Doctoral Thesis:
The Impact of Spatial Variability of Precipitation on the Predictive Uncertainty of Hydrological Models
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: November 20, 2006
Dr.-Ing. Jennifer Niessner
Germany
Title of Doctoral Thesis:
Multi-Scale Modeling of Multi-Phase-Multi-Component Processes in Heterogeneous Porous Media
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: July 27, 2006
Dr.-Ing. Alexander Schneck
Germany
Title of Doctoral Thesis:
Optimierung der Grundwasserbewirtschaftung unter Berücksichtigung der Belange der Wasserversorgung, der Landwirtschaft und des Naturschutzes
Supervisor: Prof. Dr.-Ing. Helmut Kobus
Date of Defense: July 11, 2006
Dr.-Ing. Vlad Rojanschi
Romania
Title of Doctoral Thesis:
Abflusskonzentration in mesoskaligen Einzugsgebieten unter Berücksichtigung des Sickerraumes
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: March 7, 2006
Dr.-Ing. Andreas Bielinski
Germany
Title of Doctoral Thesis:
Numerical Simulation of CO2 Sequestration in Geological Formations
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: February 20, 2006
Dr.-Ing. Arifur Rahman
Bangladesh
Title of Doctoral Thesis:
Experimental Investigations on Transverse Dispersive Mixing in Heterogeneous Porous Media
Supervisor: Prof. Dr.-Ing. Rainer Helmig
Date of Defense: December 20, 2004
Dr.-Ing. Wolfgang Nowak
Germany
Title of Doctoral Thesis:
Geostatistical Methods for the Identification of Flow and Transport Parameters in the Subsurface
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: November 8, 2004
Dr.-Ing. Surabhin Jose Chackiath
India
Title of Doctoral Thesis:
Experimental Investigations on Longitudinal Dispersive Mixing in Heterogeneous Aquifers
Supervisor: Dr.-Ing. habil. Olaf Cirpka
Date of Defense: October 20, 2004
Dr.-Ing. Omar Ouda
Palestine
Title of Doctoral Thesis:
Optimisation of Agricultural Water Use : A Decision Support System for the Gaza Strip
Supervisor: Prof. Dr. rer. nat. Dr.-Ing. habil. András Bárdossy
Date of Defense: October 27, 2003