Christoph Külls
Organisation
Fachbereich Bauwesen
Sprechzeiten:
Labor für Hydrologie: Mittwoch von 11:00 bis 12:00 in Raum 14-0.22 (+49 451 300 5742)
Denomination und Fachgebiete
Hydrologie und Internationale Wasserwirtschaft
Biographie
2014 -
Professur für Hydrologie und Internationale Wasserwirtschaft, FH Lübeck
2011 - 2014
Vertretungsprofessor für Umwelthydrologie, Studiengangsleiter Umweltnaturwissenschaften,
2005 - 2011
Wissenschaftlicher Assistent, Professur für Hydrologie,
2000 - 2004
Projektleiter im Isotopenlabor, Internationale Projekte und Forschung, Hydroisotop GmbH, Schweitenkirchen bei München
2000 -
Promotion in Hydrogeologie, Universität Würzburg
1997 - 2000
Projektleiter EU Projekt INCO-DC‚ Groundwater of the Eastern Mediterranean‘,
1996 - 1997
DFG Stipendiat Graduiertenkolleg Geowissenschaftliche Gemeinschaftsforschung in Afrika,
1994 - 1996
Wissenschaftlicher Mitarbeiter, Nahal Zin Flood Project, German Israel Foundation, Hebrew University Jerusalem
1988 - 1994
Vordiplom Hydrologie, Physik & Chemie, Diplom Hydrologie, Universität Freiburg
Publikationen
2025
Krüger, Nina; Külls, Christoph. Partitioning of flows in the unsaturated zone. Journal of Hydrology, S. 132643, 2025. Article: https://doi.org/10.1016/j.jhydrol.2024.132643
2024
Kisi, Ozgur; Azamathulla, Hazi Mohammad; Cevat, Fatih; Kulls, Christoph; Kuhdaragh, Mehdi; Fuladipanah, Mehdi. Enhancing river flow predictions: Comparative analysis of machine learning approaches in modeling stage-discharge relationship. Results in Engineering, Bd. 22, S. 102017, 2024, ISSN: 2590-1230. Article: https://doi.org/10.1016/j.rineng.2024.102017
2024
Krüger, Nina; Külls, Christoph; Bruggeman, Adriana; Christofi, Christos. Groundwater recharge estimation in Mediterranean mountain environments by isotope profiles – Partitioning of macropore and matrix flow. Journal of Hydrology, S. 131352, 2024, ISSN: 0022-1694. Article: https://doi.org/10.1016/j.jhydrol.2024.131352
2024
Kisi, Ozgur; Heddam, Salim; Parmar, Kulwinder Singh; Yaseen, Zaheer Mundher; Kulls, Christoph. Improved monthly streamflow prediction using integrated multivariate adaptive regression spline with K-means clustering: implementation of reanalyzed remote sensing data. Stochastic Environmental Research and Risk Assessment, Bd. 38, Nr. 6, S. 2489–2519, 2024. Article: https://doi.org/10.1007/s00477-024-02692-5
2024
Ola, Ibukun; Drebenstedt, Carsten; Burgess, Robert M; Mensah, Martin; Hoth, Nils; Külls, Christoph. Remediating Oil Contamination in the Niger Delta Region of Nigeria: Technical Options and Monitoring Strategies. The Extractive Industries and Society, Bd. 17, S. 101405, 2024. Article: http://dx.doi.org/10.1016/j.exis.2024.101405
2024
Ola, Ibukun; Drebenstedt, Carsten; Burgess, Robert M; Mensah, Martin; Hoth, Nils; Okoroafor, Precious; Külls, Christoph. Assessing petroleum contamination in parts of the Niger Delta based on a sub-catchment delineated field assessment. Environmental Monitoring and Assessment, Bd. 196, Nr. 6, S. 585, 2024. Article: https://doi.org/10.1007/s10661-024-12743-7
2024
Kisi, Ozgur; e Melo, Cesar Gabriel Leite; Fischer, Lars; Brandt, Hanna; Heims, Lennart; Loaec, Alexandre; Masomy, Wais; Parvez, Mohammed; Roehl, Jan; Külls, Christoph. Comments on “Machine learning-based time series models for effective CO2 emission prediction in India” by Kumari and Singh. Environmental Science and Pollution Research, S. 1–4, 2024. Comment: https://doi.org/10.1007/s11356-022-21723-8
2024
Ola, Ibukun; Drebenstedt, Carsten; Burgess, Robert M; Allan, Ian J; Hoth, Nils; Külls, Christoph. Application of low-density polyethylene (LDPE) passive samplers for monitoring PAHs in groundwater. Environmental Science and Pollution Research, Bd. 31, Nr. 42, S. 54546–54558, 2024. Article: https://doi.org/10.1007/s11356-024-34731-7
2024
Idowu, Mariam; Kulls, Christoph; Kisi, Ozgur. A new method for monthly streamflow prediction using multi-source data: range-dependent multivariate adaptive regression splines–genetic algorithm. Hydrological Sciences Journal, Bd. 69, Nr. 13, S. 1860–1880, 2024. Article: https://doi.org/10.1080/02626667.2024.2394639
2024
Ola, Ibukun; Drebenstedt, Carsten; Burgess, Robert M; Tidwell, Lane; Anderson, Kim; Hoth, Nils; Külls, Christoph. Combined temperature and salinity effects on the passive sampling of PAHs with an assessment of impacts to petroleum toxicity. Environmental Science: Processes & Impacts, Bd. 26, Nr. 11, S. 2076–2089, 2024. Article: https://doi.org/10.1039/D4EM00133H
2023
Adnan, Rana Muhammad; Dai, Hong-Liang; Kisi, Ozgur; Heddam, Salim; Kim, Sungwon; Kulls, Christoph; Zounemat-Kermani, Mohammad. Modelling biochemical oxygen demand using improved neuro-fuzzy approach by marine predators algorithm. Environmental Science and Pollution Research, Bd. 30, Nr. 41, S. 94312–94333, 2023. Article: https://doi.org/10.1007/s11356-023-28935-6
2023
Kisi, Ozgur; Ardiçlioglu, Mehmet; Hadi, Arzu MW; Kuriqi, Alban; Kulls, Christoph. Estimation of mean velocity upstream and downstream of a bridge model using metaheuristic regression methods. Water Resources Management, Bd. 37, Nr. 14, S. 5559–5580, 2023. Article: http://dx.doi.org/10.1007/s11269-023-03618-6
2023
Külls, C. Untersuchungen der Wasserqualität von Krähenteich und Mühlenteich im Jahr 2023. Bericht: https://uhydro.de/bericht/wqhl2023/
2022
Eliades, Marinos; Bruggeman, Adriana; Djuma, Hakan; Christofi, Christos; Kuells, Christoph. Quantifying evapotranspiration and drainage losses in a semi-arid nectarine (Prunus persica var. nucipersica) field with a dynamic crop coefficient (Kc) derived from leaf area index measurements. Water, Bd. 14, Nr. 5, S. 734, 2022. Article: https://doi.org/10.3390/w14050734
2022
Mehraein, Mojtaba; Mohanavelu, Aadhityaa; Naganna, Sujay Raghavendra; Kulls, Christoph; Kisi, Ozgur. Monthly streamflow prediction by metaheuristic regression approaches considering satellite precipitation data. Water, Bd. 14, Nr. 22, S. 3636, 2022. Article: https://doi.org/10.3390/w14223636
2022
Külls, Christoph; Bassukas, Dimitrios. Groundwater salinization dynamics - a conceptual modeling approach to prioritize water management plans in a changing environment. Proceedings Abstract: EGU General Assembly Conference Abstracts, S. EGU22–12667, 2022.
2022
Tziritis, Evangelos; Fidelibus, Maria Dolores; Guler, Cuneyt; Külls, Christoph; Sachsamanoglou, Katerina. An integrated hydrogeochemical approach to identify multiple salinization sources of a coastal aquifer (Rhodope, Northern Greece) Proceedings Article: 2022 Goldschmidt Conference, Goldschmidt 2022.
2022
Külls, C. Untersuchungen der Wasserqualität von Krähenteich und Mühlenteich im Jahr 2022. Bericht: https://uhydro.de/bericht/wqhl2022/
2021
Christofi, Christos; Bruggeman, Adriana; Kuells, Christoph. The Isotopic Composition of Cyprus Precipitation. A Tool of Isotope Hydrology. Proceedings Abstract: EGU General Assembly Conference Abstracts, S. EGU21–9210, 2021.
2021
Mahindawansha, Amani; Kraft, Philipp; Külls, Christoph; Breuer, Lutz. Water flow mechanisms and unproductive water losses in rice-based cropping systems in the humid tropics. Proceedings Abstract: EGU General Assembly Conference Abstracts, S. EGU21–2616, 2021.
2021
Krüger, Nina; Külls, Christoph; Kock, Marcel. Groundwater recharge estimates combining soil isotope profiles and classical soil water monitoring techniques. Proceedings Abstract: EGU General Assembly Conference Abstracts, S. EGU21–9061, 2021.
2021
Külls, C. Untersuchung der Wasserqualität von Krähenteich und Mühlenteich in Lübeck. Auswertung der Messprogramme 2021. Prof. Dr. Christoph Külls, Berichte des Labors für Hydrologie der TH Lübeck. Bericht: https://uhydro.de/bericht/wqhl2021/
2020
Doulgeris, Charalampos; Tziritis, Evangelos; Pisinaras, Vassilios; Panagopoulos, Andreas; Külls, Christoph. Prediction of seawater intrusion to coastal aquifers based on non-dimensional diagrams. Proceedings Abstract: Copernicus Meetings 2020.
2020
Tziritis, Evangelos; Aschonitis, Vassilis; Balacco, Gabriella; Daras, Petros; Doulgeris, Charalampos; Fidelibus, Maria Dolores; Gaubi, Elyes; Gueddari, Moncef; Güler, Cüneyt; Hamzaoui, Fadoua, Külls, Christoph. MEDSAL Project-Salinization of critical groundwater reserves in coastal Mediterranean areas: Identification, risk assessment and sustainable management with the use of integrated modelling and smart ICT tools. Copernicus Meetings 2020.
2020
Krüger, Nina; Külls, Christoph; Bruggeman, Adriana; Eliades, Marinos; Christophi, Christos; Rigas, Michali; Eracleous, Theodosia. Groundwater recharge estimates with soil isotope profiles–is there a bias on coarse-grained hillslopes? Proceedings Abstract: Copernicus Meetings 2020.
2020
Christofi, Christos; Bruggeman, Adriana; Kuells, Christoph; Constantinou, Costas. Hydrochemical evolution of groundwater in gabbro of the Troodos Fractured Aquifer. A comprehensive approach. Applied Geochemistry, Bd. 114, S. 104524, 2020. Article: http://dx.doi.org/10.1016/j.apgeochem.2020.104524
2020
Mahindawansha, Amani; Külls, Christoph; Kraft, Philipp; Breuer, Lutz. Investigating unproductive water losses from irrigated agricultural crops in the humid tropics through analyses of stable isotopes of water. Hydrology and Earth System Sciences, Bd. 24, Nr. 7, S. 3627–3642, 2020. Article: https://doi.org/10.5194/hess-24-3627-2020
2020
Christofi, Christos; Bruggeman, Adriana; Kuells, Christoph; Constantinou, Costas. Isotope hydrology and hydrogeochemical modeling of Troodos Fractured Aquifer, Cyprus: The development of hydrogeological descriptions of observed water types. Applied Geochemistry, Bd. 123, S. 104780, 2020. Article: https://doi.org/10.1016/j.apgeochem.2020.104780
2019
Joseph, Jobin; Külls, Christoph; Arend, Matthias; Schaub, Marcus; Hagedorn, Frank; Gessler, Arthur; Weiler, Markus. Application of a laser-based spectrometer for continuous in situ measurements of stable isotopes of soil CO 2 in calcareous and acidic soils. Soil, Bd. 5, Nr. 1, S. 49–62, 2019. Article: https://doi.org/10.5194/soil-5-49-2019
2015
Külls, C. Die Grundwasserqualität im Abstrom der Deponie Ihlenberg: Grundwasserchemische und isotopenhydrologische Untersuchungen. Bericht des Labors für Hydrologie der TH Lübeck.
2014
Külls, Christoph; Nunes, Alice; Köbel-Batista, Melanie; Branquinho, Cristina; Bianconi, Nadja; Costantini, Eduardo. Integrated use of soil physical and water isotope methods for ecohydrological characterization of desertified areas. Proceedings Abstract: EGU General Assembly Conference Abstracts, S. 15430, 2014.
2014
Joseph, Jobin; Külls, Christoph. Calibration of d13C and d18O measurements in CO2 using Off-axis Integrated Cavity Output Spectrometer (ICOS). Proceedings Abstract: EGU General Assembly Conference Abstracts, S. 659, 2014.
2014
Mueller, Matthias H; Alaoui, Abdallah; Kuells, Christoph; Leistert, Hannes; Meusburger, Katrin; Stumpp, Christine; Weiler, Markus; Alewell, Christine. Tracking water pathways in steep hillslopes by d18O depth profiles of soil water. Journal of hydrology, Bd. 519, S. 340–352, 2014. Article: http://dx.doi.org/10.1016/j.jhydrol.2014.07.031
2014
Hamutoko, JT; Mapani, BS; Ellmies, R; Bittner, A; Kuells, C. A fingerprinting method for the identification of uranium sources in alluvial aquifers: An example from the Khan and Swakop Rivers, Namibia. Physics and Chemistry of the Earth, Parts A/B/C, Bd. 72, S. 34–42, 2014. Article: https://doi.org/10.1016/j.pce.2014.09.006
2013
Külls, Christoph; Bittner, Arnold. Passive barriers for long-term containment of Uranium and Vanadium Artikel. Proceedings Paper: Reliable Mine Water Technology, edited by Adrian Brown, Linda Figueroa, and Christian Wolkersdorfer, Bd. 1, 2013.
2013
Külls, Christoph; Bittner, Arnold. Strategic Assessment of Water Resources for the Erongo Uranium Province. Proceedings Abstract: Reliable Mine Water Technology, edited by Adrian Brown, Linda Figueroa, and Christian Wolkersdorfer, Bd. 1, 2013.
2013
Klaus, J.; Zehe, E.; Elsner, M.; Külls, C.; McDonnell, J. J. Macropore flow of old water revisited: experimental insights from a tile-drained hillslope. Hydrology and Earth System Sciences, Bd. 17, Nr. 1, S. 103, 2013. Article: https://doi.org/10.5194/hess-17-103-2013
2013
Baram, S; Ronen, Z; Kurtzman, D; Külls, C; Dahan, O. Desiccation-crack-induced salinization in deep clay sediment. Hydrology and Earth System Sciences, Bd. 17, Nr. 4, S. 1533–1545, 2013. Article: https://doi.org/10.5194/hess-17-1533-2013
2013
Dávila, Pablo Fernando; Külls, Christoph; Weiler, Markus. A toolkit for groundwater mean residence time interpretation with gaseous tracers. Computers & Geosciences, Bd. 61, S. 116–125, 2013. Article: https://doi.org/10.1016/j.cageo.2013.08.006
2012
Garvelmann, Jakob; Külls, Christoph; Weiler, Markus. A porewater-based stable isotope approach for the investigation of subsurface hydrological processes. Hydrology and Earth System Sciences, Bd. 16, Nr. 2, S. 631–640, 2012. Article: https://doi.org/10.5194/hess-16-631-2012
2011
Külls, C. Rekonstruktion hydrologischer Extreme in der Namibwüste. Reihe, Artikel: Ber. Naturf. Ges. Freiburg i. Br., 101, S. 69 - 82, Freiburg 2011.
2011
Frey, S; Kuells, C; Schlosser, C. New Hydrological Age-Dating techniques using cosmogenic radionuclides Beryllium-7 and Sodium-22. IAEA-CN–186 2011.
2010
Benito, G.; Rohde, R.; Seely, M.; Külls, C.; Dahan, O.; Enzel, Y.; Todd, S.; Botero, B.; Morin, E.; Grodek, T. Management of alluvial aquifers in two southern African ephemeral rivers: implications for IWRM. Water Resources Management, Bd. 24, Nr. 4, S. 641–667, 2010. Article: https://doi.org/10.1007/s11269-009-9463-9
2010
Davila, Pablo; Kuells, Christoph. Reliability of current CFC data for age dating of water. In: EGU General Assembly Conference Abstracts, S. 536, 2010.
2009
Leibundgut, Christian; Maloszewski, Piotr; Külls, Christoph. Tracers in Hydrology. Wiley, 403 pages, 1st. ed. 2009. Monograph: ISBN 978-0-470-51885-4.
2009
Kuells, CJ; Ritter, M. Deuterium excess anomaly of precipitation in Svalbard. Proceedings Abstract: AGU Fall Meeting Abstracts, S. A51E–0179, 2010.
2009
Davila, P; Kuells, C. Combined application of 85-Kr, 39-Ar with CFCs in contaminated aquifers. Proceedings Abstract: EGU General Assembly Conference Abstracts, S. 1074, 2009.
2009
Külls, C; Marx, V; Bittner, A; Ellmies, R; Seely, M. Environmental impacts on the hydrology of ephemeral streams and alluvial aquifers. Proceedings Abstract: EGU General Assembly Conference Abstracts, S. 5517, 2009.
2009
Kuells, CJ; Zabori, J. On the representation of hydrological processes in current SVAT schemes-comparison and perspective. Proceedings Article. AGU Fall Meeting Abstracts, S. B14A–01, 2009.
2009
Morin, E.; Grodek, T.; Dahan, O.; Benito, G.; Külls, C.; Jacoby, Y.; Langenhove, G. Van; Seely, M.; Enzel, Y. Flood routing and alluvial aquifer recharge along the ephemeral arid Kuiseb River, Namibia. Journal of Hydrology, Bd. 368, Nr. 1-4, S. 262–275, 2009. Article: https://doi.org/10.1016/j.jhydrol.2009.02.015
2008
Dahan, O.; Tatarsky, B.; Enzel, Y.; Külls, C.; Seely, M.; Benito, G. Dynamics of flood water infiltration and ground water recharge in hyperarid desert. Groundwater, Bd. 46, Nr. 3, S. 450–461, 2008. Article: http://dx.doi.org/10.1111/j.1745-6584.2007.00414.x
2008
Klaus, J.; Külls, C.; Dahan, O. Evaluating the recharge mechanism of the Lower Kuiseb Dune area using mixing cell modeling and residence time data. Journal of Hydrology, Bd. 358, Nr. 3-4, S. 304–316, 2008. Article: https://doi.org/10.1016/j.jhydrol.2008.06.012
2007
Zagana, E.; Obeidat, M.; Külls, C.; Udluft, P. Chloride, hydrochemical and isotope methods of groundwater recharge estimation in eastern Mediterranean areas: a case study in Jordan. Hydrological Processes: An International Journal, Bd. 21, Nr. 16, S. 2112–2123, 2007. Article: http://dx.doi.org/10.1002/hyp.6390
2007
Zagana, E; Kuells, Ch; Udluft, P; Constantinou, C. Methods of groundwater recharge estimation in eastern Mediterranean—a water balance model application in Greece, Cyprus and Jordan. Hydrological Processes: An International Journal, Bd. 21, Nr. 18, S. 2405–2414, 2007. Article: http://dx.doi.org/10.1002/hyp.6392
2005
European Commission: Directorate-General for Research and Innovation. Isotope technologies applied to the analysis of ancient roman mortars. Edited by: Caterina Rehm-Berbenni, Andrei Druta, FUTUREtec GmbH. Göran Åberg, IFE – Institute for Energy Technology, Jacques Neguer, Israel Antiquities Authorities, Christoph Külls, Hydroisotop GmbH, Giuseppe Patrizi, Servin Scrl, Thomas Pacha, Krusemark GmbH, Peter Kienzle, Archäologischer Park Xanten, Roberto Bugini, CNR ICVBC “Gino Bozza”, Maria Grazia Fiore, Soprintendenza Archeologica del Lazio, Publications Office, 2005.
2004
Tröger, Uwe; Dias, Cláudio Luis; Guillaumon, João Régis; Iritani, Mara Akie; Külls, Christoph; Schuler, Günter. Remarks and new data about the recharge of the Guarani Aquifer System. Proceedings: XXXIII IAH Congress, Abstracts, IAH, Mexico, 2004.
2003
Voerkelius, Susanne; Külls, Christoph; Santiago, Maria Marlúcia F; Frischkorn, Horst; Semrau, Ligia Alves Santos; Heinrichs, Gerold; Gil, Margarita M López. Investigations on water management and water quality in Picos/PI and Tauá/CE. In: Global Change and Regional Impacts: Water Availability and Vulnerability of Ecosystems and Society in the Semiarid Northeast of Brazil, S. 173–184, Springer Berlin Heidelberg Berlin, Heidelberg, 2003.
2003
Döll, Petra; Krol, Maarten; Fuhr, Dagmar; Gaiser, Thomas; Herfort, Joachim; Höynck, Sabine; Jaeger, Annekathrin; Külls, Christoph; Mendiondo, E Mario; Printz, Andreas. Integrated scenarios of regional development in Ceará and Piauí. In: Global Change and Regional Impacts: Water Availability and Vulnerability of Ecosystems and Society in the Semiarid Northeast of Brazil, S. 19–41, 2003.
2003
Adar, E.; Kuells, C. MCM sf–Mixing-cell model for a steady flow MIG–Mixing-cell input generator: A short manual for installation and operation of MCM sf using the MIG–mixing-cell input generator. IAEA TecDocs. 2003.
2001
Külls, Christoph. Groundwater of the north-western Kalahari, Namibia: Estimation of recharge and quantification of the flow systems Hydrogeologie und Umwelt. Würzburg, Univ., Diss., 2001.
2001
Klock, H.; Külls, C.; Udluft, P. Quantification of Groundwater Recharge-Estimating recharge values using hydrochemical and geological data: A case study from the semiarid Kalahari catchment of northern Namibia. IAHS Red Book Series, Bd. 269, S. 25–32, 2001.
2000
Külls, Christoph; Adar, Eilon M; Udluft, Peter. Resolving patterns of groundwater flow by inverse hydrochemical modelling in a semiarid Kalahari basin. In: IAHS Red Book Series, Bd. 262, S. 447–452.
2000
Udluft, P; Ch, Kuells. Mapping the availability and dynamics of groundwater recharge—I: modelling techniques. In: Proceedings of the Third Congress on Regional Geological Cartography and Information Systems, S. 337–340, 2000. Proceedings Article.
2000
Külls, C.; Constantinou, C; Udluft, P. Mapping the availability and dynamics of groundwater recharge—Part 2: case studies from Mediterranean Basins. In: Proceedings of Third Congress on Regional Geological Cartography and Information Systems, S. 163–168, 2000. Proceedings Article.
2000
Klock, H.; Külls, C.; Udluft, P. Estimation of relative recharge values for the northern Kalahari catchment, Namibia. Journal of African Earth Sciences, Bd. 30, Nr. 4, S. 47–48, 2000.
1995
Külls, C.; Leibundgut, C.; Schwarz, U.; Schick, A. P. Channel infiltration study using dye tracers. In: IAHS Red Book Series, Bd. 232, S. 429–436, 1995.
Forschung und Transfer
Künstliche Intelligenz in der Anwendung
Wasserwirtschaft und Wasserbau (FGWW)
