Japan Geoscience Union Meeting 2021

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

[A-HW23] Isotope Hydrology 2021

Sun. Jun 6, 2021 5:15 PM - 6:30 PM Ch.08

convener:Masaya Yasuhara(Rissho Univ.), Kohei Kazahaya(Geological Survey of Japan, AIST), Shinji Ohsawa(Institute for Geothermal Sciences, Graduate School of Science, Kyoto University), Kazuyoshi Asai(Geo Science Laboratory)

5:15 PM - 6:30 PM

[AHW23-P07] Tritium concentration in recent precipitation in central Japan

*Kazuyoshi Asai1 (1.Geo Science Laboratory)

Keywords:precipitation, tritium, Nagoya city

Tritium is a effective age-dating tracer in classifying groundwater into old (>70 y) and young (<70 y) water. Sustainable use of this age tracer requires a long-term record of precipitation tritium concentrations. In this presentation, we will introduce the tritium concentration of monthly precipitation measured in Nagoya City from 2010 to the present.