JpGU-AGU Joint Meeting 2026

Session information

[E] Poster

A (Atmospheric and Hydrospheric Sciences ) » A-HW Hydrology & Water Environment

[A-HW28] Tracer Hydrology: Advances in Measurement and Modelling

Wed. May 27, 2026 5:15 PM - 7:00 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

Hydrological tracers rank among the most important tools in hydrology and hydrogeology. They improve our conceptual understanding of hydrological systems and support quantitative insights into water budgets, flow paths, groundwater recharge, groundwater-surface water interactions, hydrochemistry, geochemistry, ecohydrology and geomicrobiology. Recent advances in analytical techniques (e.g., high- frequency analyses of dissolved (noble)gases, stable water isotopes or microbial community compositions directly in the field, ultra low-level counting of rare noble gas radionuclides, or high-throughput sequencing of environmental DNA) now allow precise measurement of an unprecedented range of hydrologically important physical, chemical, and biological processes at spatial and temporal resolutions unthinkable just a few years ago. Moreover, owing to the recent surge in computational power and integrated models, we are finally enable to explicitly simulate the (reactive) transport of hydrological tracers throughout the entire hydrosphere. This session aims to showcase recent advances, innovations, and emerging methods in measuring, simulating, and interpreting hydrological tracers. In particular, it seeks to highlight multidisciplinary approaches that provide an improved conceptual and/or quantitative understanding of complex hydrological, hydrogeological and ecohydrological systems. Because acquisition of hydrological tracers also supports the decision-making process, the goal of this session also lies in demonstrating studies which helped improving water resources management and making the exploitation of our precious water resources more sustainable and adaptable to future anthropogenic and climatic perturbations.

5:15 PM - 7:00 PM

Véronique Schifferle1, Currle Friederike1, Angela Welham1,2, Jared David van Rooyen1,2, Stéphanie Musy1, Shinya Yamamoto3, Tatsuji Nishizawa3, Takashi Uchiyama3, Takanori Kagoshima4, Kotaro Shirai5, Yuji Sano6, Rolf Kipfer2,7,8, Yama Tomonaga1,9,2, *Oliver S. Schilling1,2 (1. Hydrogeology, Department of Environmental Sciences, University of Basel, Switzerland, 2. Eawag, Department of Water Resources and Drinking Water, Switzerland, 3. Mount Fuji Research Institute, Yamanashi Prefectural Government, Japan, 4. Graduate School of Science and Engineering, University of Toyama, Japan, 5. Atmosphere and Ocean Research Institute, University of Tokyo, Japan, 6. Marine Core Research Institute, Kochi University, Japan, 7. Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, Switzerland, 8. Institute of Geochemistry and Petrology, ETH Zürich, Switzerland, 9. Entracers GmbH, Switzerland)

5:15 PM - 7:00 PM

*Shinya Yamamoto1, Oshin Alagiyawanna2,3, Kosuke Ota4, Yusuke Yokoyama2, Stéphanie Musy5, Friederike Currle5, Yama Tomonaga5, Oliver S. Schilling5,6 (1. Mount Fuji Research Institute, Yamanashi Prefectural Government, 2. Atmosphere and Ocean Research Institute, The University of Tokyo, 3. The University of Bremen, 4. National Institute of Advanced Industrial Science and Technology, 5. University of Basel, 6. Eawag, Swiss Federal Institute of Aquatic Science and Technology)

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