Articles, Technical Reports, Apps

Five journal publications, technical reports and an environmental mapping app document my applied work.

Dynamics of the Flowing Drainage Network and Water Chemistry for Four Headwater Catchments
2025 | Ecohydrology |
Citation reference.
Bujak-Ozga, I., von Freyberg J., Rinaldo, A. and van Meerveld, I. (2025), Comparison of the Dynamics of the Flowing Drainage Network and Water Chemistry for Four Headwater Catchments. Ecohydrology, 18:e2734. https://doi.org/10.1002/eco.2734
Changes in flowing drainage network and stream chemistry during rainfall events for two pre-Alpine catchments
2024 | Hydrol. Earth Syst. Sci. |
Citation reference.
Bujak-Ozga, I., von Freyberg, J., Zimmer, M., Rinaldo, A., Benettin, P., and van Meerveld, I.: Changes in flowing drainage network and stream chemistry during rainfall events for two pre-Alpine catchments, Hydrol. Earth Syst. Sci. 29. 2339-2359, https://doi.org/10.5194/hess-29-2339-2025, 2025. Available at Hess
Short-term dynamics of drainage density based on a combination of channel flow state surveys and water level measurements
December 2023 | Hydrological Processes |
Citation reference.
Bujak-Ozga, I.; van Maarveld H.J.; Rinaldo A.; von Freyberg J.; Short-term dynamics of drainage density based on a combination of channel flow state surveys and water level measurements, December 2023. Available at Wiley Online Library
High Spatial-resolution Monitoring to Investigate Nitrate Export and Its Drivers in a Mesoscale River Catchment Along an Anthropogenic Land-Cover Gradient
August 2021 | Hydrological Processes |
Citation reference.
Bujak, I.; Mueller, Ch.; Merz, R.; Knoeller, K.; High Spatial-resolution Monitoring to Investigate Nitrate Export and Its Drivers in a Mesoscale River Catchment Along an Anthropogenic Land-Cover Gradient, Hydrological Processes, 2021. Available at Wiley Online Library
TempAqua: Intermittent Streams Mapping Mobile App
July 2021 | AppStore |
Bujak, I.; TempAqua: Intermitten Streams Mapping Mobile App, 2021. Available on AppStore
The proportional contribution of nitrate sources in surface water in a mesoscale river catchment with a land-use gradient
September 2019 | CL:AIRE |
Citation reference.
Bujak, I.; Müller, Ch.; Merz, R.; Knöller, K.; The proportional contribution of nitrate sources in surface water in a mesoscale river catchment with a land-use gradient, CL:AIRE, September 2019. Available at www.claire.co.uk
Evaluation of a Potential to Combine Aquifer Thermal Energy Storage with Groundwater Remediation
2017 | Ochrona Srodowiska |
Abstract: Aquifer thermal energy storage (ATES) may be considered beneficial due to lack of negative environmental impact, innovation and potential for further development. The state of knowledge on ATES and its potential to be combined with groundwater remediation was analyzed on the basis of literature data and operating experience. Chlorinated hydrocarbons and BTEX are the contaminants most frequently occurring at depths, where ATES systems usually operate. The following remediation techniques that potentially could be combined with ATES systems were discussed: ‛pump and treat’, natural (NA) and enhanced natural attenuation (ENA) via biostimulation and bioaugmentation, as well as in situ chemical oxidation (ISCO) and enhanced reductive dechlorination (ERD) under anaerobic conditions. Development of such solutions is constrained by problems related mainly to the risk of accelerated contaminant migration and reduction of their biodegradation rates as a result of changes in redox potential due to ATES system operation and well screen clogging. Further research is required to confirm the effectiveness of the combined application of ATES and groundwater remediation in practice as the knowledge of the aquifer processes upon thermal energy storage is incomplete and the operating experience limited.
Show more
Citation reference.
Malina, G., Bujak, I. Evaluation of a Potential to Combine Aquifer Thermal Energy Storage with Groundwater Remediation. Ochrona Srodowiska 2017, Vol. 39, No. 3, pp. 9–18. Available at BazTech

Conferences

Nine international conferences and meetings with oral and poster presentations.

Temporary Rivers and Streams Meeting 2024
June 2024 | | Nottingham UK
Spatiotemporal changes in flow intermittency and hydrochemistry in headwater catchments during rainfall events
Show more
Oral presentation.
Bujak-Ozga, I., von Freyberg, J., Rinaldo, A., and van Meerveld, I.: Spatiotemporal changes in flow intermittency and hydrochemistry in headwater catchments during rainfall events, Temporary Rivers and Streams Meeting, Nottingham, 20.05.2024
European Geosciences Union EGU 2023
April 2023 | | Vienna, Austria
Short-Term Dynamics of the Flowing Stream Drainage Density
Show more
Oral presentation.
Bujak-Ozga, Izabela & Meerveld, Ilja & Rinaldo, Andrea & Freyberg, Jana. (2023). Short-Term Dynamics of the Flowing Stream Drainage Density. EGU 2023, Vienna. 10.5194/egusphere-egu23-11145.
European Geosciences Union EGU 2023
April 2023 | | Vienna, Austria
Quantifying changes in stream-landscape connectivity
Show more
Oral presentation.
von Freyberg, J., Bujak, I. Rinaldo, A., van Meerveld, I.: Quantifying changes in stream-landscape connectivity: combining high-resolution data of non-perennial streams and environmental tracers, EGU General Assembly 2023, Vienna, Austria, 24-28 Apr 2023, EGU23-14005, https://doi.org/10.5194/egusphere-egu23-14005, 2023.
European Geosciences Union EGU 2022
May 2022 | | Vienna, Austria
Monitoring changes in temporary streams networks during rainfall events
Show more
Oral presentation.
von Freyberg, J., Bujak, I. Rinaldo, A., van Meerveld, I.: Monitoring changes in temporary streams networks during ranfall events, EGU General Assembly 2022, Vienna, Austria, 23-27 May 2022, EGU22-4435, https://doi.org/10.5194/egusphere-egu23-4435, 2022.
European Geosciences Union EGU 2021
February 2021 | | Vienna, Austria
Linking the dynamic expansion and contraction of stream networks to changes in water storage and water quality in a pre-Alpine catchment
Show more
Oral presentation.
Bujak, I., Rinaldo, A., Meerveld, I., Käslin,F. and von Freyberg, J.: Linking the dynamic expansion and contraction of stream networks to changes in water storage and water quality in a pre-Alpine catchment. EGU 2021, online, 19-30 Apr 2021, EGU21-10767, https://doi.org/10.5194/egusphere-egu21-10767, 2021
GOLDSCHMIDT 2019
18th - 23rd of August 2019 | | Barcelona, Spain
Goldschmidt is the foremost annual, international conference on geochemistry and related subjects, organised by the European Association of Geochemistry and the Geochemical Society. During this conference I gave a 20 min speech about my research and the recent results of my work.
Show more
Oral presentation.
Bujak, I.; Müller, Ch.; Merz, R.; Knöller, K.; (08/2019): Integrated Isotope Techniques to Investigate Nitrate Dynamics along a Land-Use Gradient in a Mesoscale River Catchment, Goldschmidt 2019, Barcelona, Spain
Groundwater Quality Conference GQ2019
9th - 13rd of September 2019 | | Liege, Belgium
Oral presentation.
Bujak, I.; Müller, Ch.; Merz, R.; Knöller, K.; (09/2019): Integrated Isotope Techniques to Evaluate the Fate and Transport of Nitrogen in an Alpine Foothill Catchment, GQ2019, Liege, Belgium
GASIR 2018 - German Association for Stabile Isotope Research
30th - 3rd of October 2018 | TUM Academy Center Raitenhaslach | Munich, Germany
This year's annual meeting of the German Association for Stabile Isotope Research (GASIR) was organized by the team headed by Prof. Florian Einsiedl (Chair of Hydrogeology). With 107 participants, a total of 35 lectures and 31 poster contributions were discussed. The main topics of the stable isotope research this year were: (1) Analytics, methods, techniques and quality assurance, (2) Food, forensics, doping, (3) Hydrology, hydrogeology, (4) Soil - plants – atmosphere, (5) Climate research and material cycles, (6) Physiology and metabolism. In addition, Monday morning was marked by presentations and presentations by companies that provided new insights into instruments, peripherals, equipment and accessories for isotope research. This diverse audience enabled presentations and discussion to be multifarious and interdisciplinary. During this meeting I gave the 20 min speech about my research and the recent results of my work.
Show more
Oral presentation.
Bujak, I.; Müller, Ch.; Merz, R.; Knöller, K.; (10/2018): Integrative isotope techniques to evaluate the fate and transport of nitrogen in the Erlauf River catchment, Austria, GASIR 2018, Reitenhaslach, Germany
SINA 2017 - Stabile Isotope Network Austria Meeting
24th - 25th of November 2017 | University of Vienna | Vienna, Austria
The 15th Stable Isotope Network Austria (SINA) Meeting was organized by the Department of Microbiology and Ecosystem Science and the Department of Environmental Geosciences, University of Vienna. The scientific program covered the complete spectrum from fundamental to applied isotope research and their related disciplines, including Biology, Ecology, Environmental Sciences, Hydrology and Geosciences, ranging from stable isotopes of light to heavy elements. During this meeting I had a chance to present my poster with the recent results of my work.
Show more
Poster presentation.
Bujak, I.; Müller, Ch.; Merz, R.; Knöller, K.; (11/2017): Multi-isotope approach to evaluate sources and fate of nitrogen in the Erlauf River catchment in Austria, SINA 2017, Vienna, Austria