Tunde Olarinoye

Scientific officer at the
International Centre for Water Resources and Global Change (UNESCO)


Federal Institute of Hydrology
P.O. Box 200253
56068 Koblenz, Germany

Phone: +49 (0) 261 1306 5099


  • Large data analysis and management
  • Hydrological modelling
  • Groundwater and global change impact assessment
  • Machine learning applications in hydrology

Scope of duties

  • Data acquisition and development of soil moisture data products
  • Public relations and front-end development for the International Soil Moisture Network (ISMN)

Community contributions

2022: Co-convening a session at the EGU in Vienna titled “Large-sample hydrology: characterising and understanding hydrological diversity and catchment organisation”.

2019: Organising member at 46th International Association of Hydrogeologists Congress (IAH) in Malaga, Spain

Research Experience

2018 – 2021: Scientific Employee, Chair of Hydrological Modelling and Water Resources, University of Freiburg, Germany

2017 – 2018: Graduate Researcher, T-Group, UNESCO-IHE Institute for Water Education, Delft, the Netherlands

2016: Research Intern, Deltares, Utrecht, the Netherlands


From 2018: PhD Hydrology, University of Freiburg, Germany

Title: Unravelling the hydrodynamic behaviour of karst aquifer systems through comparative hydrology.

2015 – 2017: Master of Science in Water Science and Engineering, UNESCO-IHE Institute for Water Education, Delft, the Netherlands – Erasmus Mundus Joint Master Programme.

Thesis: Assessing impacts of urbanisation and climate change on present and future water availability in Arusha, Tanzania.

2015 – 2017: Master of Science in Environmental Engineering, Instituto Superior Técnico, Lisbon Portugal – Erasmus Mundus Joint Master Programme.

2015 – 2017: Master of Science, Hydro-science Engineering, Technische Universität Dresden, Germany – Erasmus Mundus Joint Master Programme.

2006 – 2011: Bachelor of Science, Agricultural and Environmental Engineering, Olabisi Onabanjo University, Nigeria

Teaching and mentoring

2018 – 2021: Co-supervised and mentored Bachelor and Master students at the Chair of Hydrological Modelling and Water Resources, University of Freiburg, Germany

2021: Guest lecture: Groundwater adaptation to global change impacts, UN-IHE Institute for Water Education, the Netherlands


Olarinoye, T., Gleeson, T., and Hartmann, A. (in review). Karst spring recession curve analysis: efficient, accurate methods for both fast and slow flow components. Hydrol. Earth Syst. Sci. Discuss. [preprint], https://doi.org/10.5194/hess-2021-249

Olarinoye T., Gleeson T., Marx V., et al. (2020). Global karst springs hydrograph dataset for research and management of the world’s fastest-flowing groundwater. Nature Scientific Data, 7:59, https://www.nature.com/articles/s41597-019-0346-5

Hartmann A., Liu Y., Olarinoye T., Berthelin R. and Marx V. (2020). Integrating fieldwork and large-scale modeling to improve assessment of karst water resources. Journal of Hydrogeology, https://doi.org/10.1007/s10040-020-02258-z

Olarinoye T., Foppen J.W., Veerbeek W., Morienyane T. and Komakech H. (2020). Exploring the future impacts of urbanization and climate change on groundwater in Arusha, Tanzania. Water International, https://ddoi.org/10.1080/02508060.2020.1768724

Conference contributions

Olarinoye T., Boehmer F., Dietrich S., Zink M., Himmelbauer I. The International Soil Moisture Network: supporting and advancing EO research through open source in-situ soil moisture observations. EGU 2022.

Olarinoye T., Gleeson T. and Hartmann A. An automatic recession extraction and parameter estimation method for large-sample karst spring analysis. Interactive presentation AGU Fall meeting 2020 [talk].

Olarinoye T. and Hartmann A. A new approach for automatic extraction of karst conduit and matrix recession coefficients. A workshop on sustainability and community in support of UNESCO science programs; Proceedings for conservation of fragile karst resource. Kentucky, USA, 2020 [talk].

Olarinoye T., Gleeson T., Hartmann A. Applicability of automatic recession extraction methods to a large number of karst spring hydrographs. Conference presentation at the International Karstological School “Classical Karst”. Postojna Slovenia, 2019 [talk].

Olarinoye T., Gleeson T., Hartmann A. Comparative analysis of karst spring hydrograph using automatic recession methods. 46th IAH Congress, Malaga, Spain, 2019 [talk].

Olarinoye T., Gleeson T., Marx V., Hartmann A. The first global database of karst spring discharge observations. EG, Austria, 2019 [talk].

Olarinoye T., Marx V., Hartmann A. Unravelling the hydrodynamic behavior of karst systems through comparative hydrology. Eurokarst conference, Besancon, France, 2018 [talk].

Nogueira G., Olarinoye T., Stigter T., Marc W. Mapping and evolution of hydrochemical water types in Maputo Coastal aquifer. 44th Annual Congress for the International Association of Hydrogeologist, Dubrovnik, Croatia, 2017 [poster].

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