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Discussion papers
https://doi.org/10.5194/essd-2019-244
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2019-244
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: data description paper 19 Feb 2020

Submitted as: data description paper | 19 Feb 2020

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This preprint is currently under review for the journal ESSD.

Isoscape of precipitation amount-weighted annual mean tritium (3H) activity from 1976 to 2017 for the Adriatic-Pannonian region

Zoltán Kern1, István Gábor Hatvani1, Dániel Erdélyi1,2, Polona Vreča3, Ines Krajcar Bronić4, Tjaša Kanduč3, Marko Štrok3, István Fórizs1, László Palcsu5, György Czuppon1,5, and Balázs Kohán6 Zoltán Kern et al.
  • 1Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, MTA Centre for Excellence, Budaörsi út 45, H-1112 Budapest, Hungary
  • 2Centre for Environmental Sciences, Eötvös Loránd University, Pázmány Péter stny. 1/A, H-1117, Budapest, Hungary
  • 3Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
  • 4Department of Experimental Physics, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
  • 5Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Bem tér 18/c, Debrecen, Hungary
  • 6Dept. of Environmental and Landscape Geography, Eötvös University, Pázmány stny 1/C, H-1117, Budapest, Hungary

Abstract. Tritium (3H) as a constituent of the water molecule is an important natural tracer in hydrological sciences. The anthropogenic tritium introduced into the atmosphere became unintentionally an excellent tracer of processes on the time scale of up to a 100 years. A prerequisite for tritium applications is to know the distribution of tritium activity in precipitation. Here we present the spatially continuous gridded database (isoscapes) for amount-weighted annual mean tritium activity in precipitation for the period 1976 to 2017 on 1 × 1 km grids for the Adriatic-Pannonian Region (using 39 stations), with a special focus on post-2010 years which are not represented by existing global models. Three stations were used to check the model performance independently confirming its capability to reproducing the spatiotemporal tritium variability in the region. This Regional model is capable of providing reliable spatiotemporal input data for hydrogeological application at any place within Slovenia, Hungary and its surroundings. Results also show a decrease in the average spatial representativity of the stations regarding tritium activity in precipitation from ~ 600 km in 1970s when bomb-tritium was still prevailing in precipitation, to ~ 300 km in the 2010s. The post-2010 isoscapes can serve as benchmarks for background tritium activity for the region, helping to determine local increases of technogenic tritium from these backgrounds. The gridded tritium isoscape is available in NetCDF-4 at doi:10.1594/PANGAEA.896938 (Kern et al., 2019).

Zoltán Kern et al.

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Status: open (until 06 May 2020)
Status: open (until 06 May 2020)
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Zoltán Kern et al.

Data sets

Isoscape of precipitation weighted annual mean tritium activities across the Adriatic-Pannonian Region (1976-2017). Z. Kern, I. G. Hatvani, D. Erdélyi, T. Mona, and P. Vreca, https://doi.org/10.1594/PANGAEA.896938

Zoltán Kern et al.

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Short summary
Here we present the spatially continuous gridded database for amount-weighted annual mean tritium activity in precipitation for the period 1976 to 2017 for the Adriatic-Pannonian Region, with a special focus on the years after 2010 which are not represented by existing global models. This Regional model is capable of providing reliable spatiotemporal input data for hydrogeological applications at any place within Slovenia, Hungary and its surroundings.
Here we present the spatially continuous gridded database for amount-weighted annual mean...
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