A comprehensive simulation study of dissolved Barium and Oxygen isotope ratio in the Arctic Ocean ...
The Arctic Ocean freshwater plays important roles in regional and global climate. Dissolved Barium and the Oxygen isotope ratio are two tracers that provide key information on the river runoff and the sea-ice melt water as two Arctic Ocean freshwater components. In this research, an offline tracer m...
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| Format: | Text |
| Language: | English |
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University of British Columbia
2017
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| Online Access: | https://dx.doi.org/10.14288/1.0343230 https://doi.library.ubc.ca/10.14288/1.0343230 |
| Summary: | The Arctic Ocean freshwater plays important roles in regional and global climate. Dissolved Barium and the Oxygen isotope ratio are two tracers that provide key information on the river runoff and the sea-ice melt water as two Arctic Ocean freshwater components. In this research, an offline tracer model was developed with dissolved Barium and Oxygen isotope ratio modules and appropriate boundary conditions were applied to the Arctic Ocean to simulate the spatial and temporal variations of the two tracers. The tracer model was run from 2002 to 2013 after a 24-year spin-up. The simulation results show reasonable tracer climatology and seasonal cycles, agree well with field observations and the Arctic freshwater cycle. The tracer model was applied to investigate the atmospheric driven freshwater variabilities in the upper 130m through linear trend and Empirical Orthogonal Function (EOF) analysis. The linear trend result shows the increase in the transport of Eurasian runoff from the Makarov Basin to the ... |
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