Joni Dehaspe

Department Hydrogeology

Helmholtz Centre for
Environmental Research - UFZ
Permoserstr. 15
04318 Leipzig
Germany

Phone: +49 341 235 482428

+49 341 235 1986

Joni Dehaspe

Research topics

Nutrient instream processing
Data driven modeling
Concentration-Discharge Relationships

Curriculum Vitae

since 10/2018

PhD student - Data-driven analysis of nutrient in-stream processing and modelling beyond the river reach scale.

Department of Hydrogeology, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany

09/2017-
03/2019

Independent Researcher - Climate change impacts on the biodiversity of tropical ecosystems

Department of Geography, University of Costa Rica (UCR), San José

C3S Climate Change Service - C3S_422_Lot1_SMHI contract

10/2016 - 02/2017

Internship

Department of Geography, University of Costa Rica (UCR), San José

09/2014 - 08/2017

Master of Science, Environmental Engineering

Thesis: Spatially distributed conceptual Rainfall-Runoff modelling applied to hydrometric and isotope data from a humid tropical catchment

ETH Zürich, Switzerland

2015 - 2016

Research Assistant

Department of Soil and Terrestrial Environmental systems (STEP), ETH Zürich, Switzerland

09/2011 - 08/2014

Bachelor of Science, Bioscience Engineering

KULeuven, Belgium

Publications

Joni Dehaspe, Christian Birkel, Doerthe Tetzlaff, Ricardo Sánchez‐Murillo, Ana María Durán‐Quesada, Chris Soulsby (2018). Spatially distributed tracer‐aided modelling to explore water and isotope transport, storage and mixing in a pristine, humid tropical catchment. Hydrological Processes (32):3206-3224. doi: https://doi.org/10.1002/hyp.13258.

You could use our publication index for further requests.

2022 (1)

Birkel, C., Dehaspe, J., Chavarría-Palma, A., Venegas-Cordero, N., Capell, R., Durán-Quesada, A.M. (2022):
Projected climate change impacts on tropical life zones in Costa Rica
Prog. Phys. Geogr. 46 (2), 180 - 200 10.1177/03091333211047046

to index

2021 (2)

Dehaspe, J., Sarrazin, F., Kumar, R., Fleckenstein, J.H., Musolff, A. (2021):
Bending of the concentration discharge relationship can inform about in-stream nitrate removal
Hydrol. Earth Syst. Sci. 25 (12), 6437 - 6463 10.5194/hess-25-6437-2021
Musolff, A., Zhan, Q., Dupas, R., Minaudo, C., Fleckenstein, J.H., Rode, M., Dehaspe, J., Rinke, K. (2021):
Spatial and temporal variability in concentration-discharge relationships at the event scale
Water Resour. Res. 57 (10), e2020WR029442 10.1029/2020WR029442

to index

2020 (1)

Correa, A., Birkel, C., Gutierrez, J., Dehaspe, J., Durán-Quesada, A.M., Soulsby, C., Sánchez-Murillo, R. (2020):
Modelling non-stationary water ages in a tropical rainforest: A preliminary spatially distributed assessment
Hydrol. Process. 34 (25), 4776 - 4793 10.1002/hyp.13925

to index

News

Lecture by Yanchen Zheng (University of Bristol)

On 08th September, the Department of Hydrogeology is pleased to host Dr. Yanchen Zheng from the University of Bristol for an exciting lecture:
Toward a National Understanding of River Chemistry: Analyzing Water Quality Baselines and Controls across Great Britain from the new CAMELS-GB-Chem dataset.

Join us to explore how this groundbreaking dataset is reshaping our understanding of water quality across the nation.

The event takes place on 08.09.25, 1pm to 2pm at building 1.0, Glaskasten I (room 361). Due to limited space, we kindly request advance registration by E-Mail .

For digital participation via Zoom, you will receive the link upon request by E-Mail .

M. Bayani Cardenas visits UFZ

Birdsall-Dreiss distinguished lecturer M. Bayani Cardenas visited UFZ Leipzig on the 30th June 2025.

Portrait Bayani Cardenas M. Bayani Cardenas is a hydrology professor in the Department of Earth and Planetary Sciences of the Jackson School of Geosciences at the University of Texas at Austin. His research seeks to understand flow and transport processes across different hydrologic settings, water quality and quantity problems, and scales, using a combination of theoretical, computational, and observational methods.

Around 35 people attended his lecture “Insights on groundwater renewability from age and residence time analysis” in the UFZ lecture hall in person or online. Before his lecture, the hydrogeology team had the opportunity for an extensive professional exchange. We would like to thank Bayani Cardenas very much for his visit and the time he took for us.

Long Night of Sciences Leipzig: Get to the bottom of groundwater

The Department of Hydrogeology took part in the Long Night of Sciences on 20.06.2025 with an experience stand where interested parties could use food coloring to test how pollutants spread in groundwater. Many people of all ages and professional backgrounds took the opportunity for scientific exchange with the HDG team and the other participating departments and institutions. Read more

Team HDG mit Erlebnis-Stand

Conference contributions

EGU General Assembly 2025

Vienna, Austria, (DATE)

Ebeling, Pia: Trends in Instream Nitrogen-to-Phosphorus Ratios: A 30-Year Study of Ecological Relevance Across 750 Catchments

Chao Lei: Spatial variability and temporal changes in inter-catchment groundwater flow across the contiguous United States

José L. J. Ledesma: Drivers of stream and riparian hydrological responses to rainfall events in forest headwater catchments across ecoregions

Linus Schauer: Controls of space-time variance of water chemistry in river networks

AGU Fall Meeting 2024

9-13 December 2024, Washington

AGU24. What's next for science?

Poster: Schauer, L.: H31Q - Leveraging Sensor Technologies, Networks, and Tools to Rethink Space-Time Dynamics in River Water Quality

Further conference contributions

New Publications

Coder, L., Musolff, A., Kronsbein, P.M., Knöller, K., Büttner, O., Rinke, K., Tittel, J. (2025):
How anthropogenic modification of riverscapes reduces the resilience of floodplain water bodies to drought
Ecol. Eng.

Ebeling, P. (2025):
Groundwater droughts data for 6626 wells in Germany
HydroShare

Schauer, L.S., Jawitz, J.W., Cohen, M.J., Musolff, A. (2025):
Spatial and temporal variability of river water quality
Hydrol. Process.

Ledesma, J.L.J., Musolff, A., Sponseller, R., Lupon, A., Peñarroya, X., Jativa, C., Bernal, S. (2025):
The Riparian Zone controls headwater hydrology and biogeochemistry, doesn't It? Reassessing linkages across European ecoregions
Glob. Biogeochem. Cycles

Duong, T.D., Tran, V.N., Nguyen, V.T. (2025):
Evaluating rainfall-runoff generation mechanisms of deep learning models using a process-based rainfall-runoff model
Water Resour. Manag.

Further publications

HDG Seminar

Next seminar

Past seminars

Jobs & Internships

Jobs at the Dept. Hydrogeology

Jobs at UFZ

Contact

Office:
Jette Wüst
Tel.: +49 341 6025 1253

jette.wuest@ufz.de

R. 328 Building 1.0 | Permoserstraße 15 | 04318 Leipzig