| Author 1 | Daisuke Tsumune |
|
| Author 2 | Takaki Tsubono |
| Author 3 | Kazuhiro Misumi |
| Author 4 | Kazuyuki Sakuma |
| Authors 5- | Yuichi Onda |
| Subject | Oceans |
| Subject_sub1 | |
| Subject_sub2 | |
| Abstract | This 3D Cs-137 concentration dataset was created using high-resolution ocean simulations based on the Regional Ocean Modeling System (ROMS). The model incorporates only direct leakage from the vicinity of the Fukushima Daiichi Nuclear Power Plant and dissolved flux input from rivers. The simulation employs a horizontal resolution of 1/120° (~1 km) and 30 vertical σ-coordinate layers, with boundary conditions provided by JCOPE2 oceanic reanalysis data. To capture mesoscale dynamics such as eddies and the Kuroshio Current, the model results were nudged to JCOPE2 data outside the coastal zones. Atmospheric forcing, including wind stress, heat, and freshwater fluxes, was derived from NuWFAS reanalysis data.
Fluxes of particle- and dissolved-form Cs-137 from rivers were simulated by Sakuma et al. (2019). |
| Temporal coverage | 2013-2016 |
| Spatial coverage | 35.900 degree N - 40.000 degree N, 139.900 degree E - 147.000 degree E |
| File format | Delimited |
| Language | English |
| Discovery metadata record | |
| Publisher | Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba |
| Publication year | 2025 |
| Publication date | 8th of January, 2025 |
| Digital Object Identifier (DOI) | 10.34355/CRiES.U.Tsukuba.00259
Data Download
fksmH113_avg_2013_tracer.nc (59.39 GB)
fksmH113_avg_2014_tracer.nc (59.37 GB)
fksmH113_avg_2015_tracer.nc (59.1 GB)
fksmH113_avg_2016_tracer.nc (58.93 GB)
fksmH_grd.nc (284.8 MB)
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| Short DOI | |
| Citation text | Tsumune, D. , T. Tsubono, K. Misumi (2024). Simulated Cs-137 activity concentration data off Fukushima coast from 2013 to 2016. Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba. https://doi.org/10.34355/CRiES.U.Tsukuba.00259
Tsumune, D., T. Tsubono, K. Misumi, Y. Tateda, Y. Toyoda, Y. Onda, and M. Aoyama (2020), Impacts of direct release and river discharge on oceanic 137Cs derived from the Fukushima Dai-ichi Nuclear Power Plant accident, Journal of Environmental Radioactivity, 214-215, doi:10.1016/j.jenvrad.2020.106173.
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| Serial at center | 00259 |
| Serial at each Univ./Institute | TSUK0059 |
| Key word 1 | Ocean current |
| Key word 2 | Fukushima |
| Key word 3 | Regional Ocean model |
| Key word 4 | |
| Key word 5 | |
| Remarks | See fksmH_grd.nc for data latitude, longitude and depth information. |
