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| Title | Simulated ocean current data off Fukushima coast from 2013 to 2016 | |
|---|---|---|
| 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 | The 3D daily-averaged flow field database was developed using the Regional Ocean Modeling System (ROMS) to simulate the high-resolution oceanic dispersion of Cs-137 released from Fukushima Daiichi Nuclear Power Plant from 2013 to 2016. The model domain covered the ocean off Fukushima (35°54' N–40°00' N, 139°54' E–147°00' E) with a fine horizontal resolution of 1/120° (~1 km) to capture submesoscale processes and a vertical resolution of 30 σ-coordinate layers. The simulation was forced at the surface using atmospheric data from the NuWFAS reanalysis system, which provided wind stress, heat, and freshwater fluxes at a horizontal resolution of 5 km and a temporal resolution of 1 hour. Boundary conditions were set using JCOPE2 oceanic reanalysis data, including horizontal currents, temperature, salinity, and sea surface height, with a horizontal resolution of 1/10°. Mesoscale dynamics, such as eddies and the Kuroshio Current, were represented by nudging the model results to JCOPE2 data outside coastal zones shallower than 150 m, with a nudging timescale of 1 day. Freshwater supply by rivers was based on simulation results from 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.00258 Data Download fksmH113_avg_2013_uvw.nc (40.99 GB) fksmH113_avg_2014_uvw.nc (40.92 GB) fksmH113_avg_2015_uvw.nc (41.06 GB) fksmH113_avg_2016_uvw.nc (41.17 GB) fksmH_grd.nc (284.8 MB) | |
| Short DOI | ||
| Citation text | Tsumune, D. , T. Tsubono, K. Misumi, K. Sakuma, and Y. Onda (2024). Simulated ocean current 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.00258 Tsumune, D., T. Tsubono, K. Misumi, K. Sakuma, and Y. Onda (2024), Impact of fluvial discharge on 137Cs in the ocean following the Fukushima Daiichi Nuclear Power Station accident, Pure and Applied Chemistry, 0(0), doi:10.1515/pac-2023-0902. | |
| Serial at center | 00258 | |
| Serial at each Univ./Institute | TSUK0058 | |
| Key word 1 | Ocean current | |
| Key word 2 | Fukushima | |
| Key word 3 | Regional Ocean model | |
| Key word 4 | ||
| Key word 5 | ||
| Remarks | ||