The Scottish Shelf Model (SSM) 3.01 26 Year Reanalysis, otherwise referred to as the Scottish Shelf Waters Reanalysis Service (SSW-RS), is a hindcast model, run from 1993 to 2018, covering the Scottish continental shelf waters as well as most of UK waters, the North Sea and the English Channel. The domain extends from approximately 48° - 62° N and 13° W - 13° E. The SSM 3.01 26 Year Reanalysis was developed and run by the National Oceanography Centre. The model output, which includes hourly horizontal currents and water elevation fields, daily mean fields of three-dimensional currents, temperature and salinity, on the unstructured model mesh, is available for download from https://gws-access.jasmin.ac.uk/public/ssw_rs/. Registration is required to access this data via the SSW-RS website: www.tinyurl.com/SSW-Reanalysis.
The SSM implements the Finite Volume Community Ocean Model which utilises an unstructured computational grid enabling the model to resolve many small scale coastal features. The horizontal resolution ranges from 1 km at the coast to 20 km at the outer boundary. The vertical water column is resolved using 20 terrain following sigma layers, each representing 5% of the water column. Products provided by Copernicus Marine Service were used to force the model at open boundaries, to provide sea surface temperature data assimilation and to calibrate/validate the model.
Data and Resources
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POLYGON ((-13.095703125 48.841220728215, -13.095703125 61.421692072587, 12.744140625 61.421692072587, 12.744140625 48.841220728215))
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1993-01-01 to 2018-12-31
English (United Kingdom)
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The SSM is an implementation of the Finite Volume Community Ocean Model (FVCOM). FVCOM was developed by the University of Massachusetts-Dartmouth, USA, by Chen et al. (2003) and is still actively being developed. FVCOM is a three dimensional (3D) ocean model using the finite volume method to discretise the governing equations in integral form and solve them numerically using the finite difference method over the computational grid. FVCOM uses an unstructured irregular grid in the horizontal plane, composed of triangular elements which can vary in shape and size.
Below is a summary of the datasets used to force the Scottish Shelf Waters Reanalysis. More information is available at www.tinyurl.com/SSW-Reanalysis
Open boundary forcing along the Atlantic boundary:
Open boundary forcing along the Baltic boundary:
Fresh water forcing:
A paper detailing the development of the SSW-RS and the data used to force it is currently being produced (Barton et al., In prep.).
Arheimer, B., Pimentel, R., Isberg, K., Crochemore, L., Andersson, J. C. M., Hasan, A., & Pineda, L. (2020). Global catchment modelling using World-Wide HYPE (WWH), open data, and stepwise parameter estimation. Hydrology and Earth System Sciences, 24(2), 535–559. https://doi.org/10.5194/hess-24-535-2020
Autret, E., Piollé, J. F., Tandéo, P., Prévost, C. (2020) ODYSSEA Level 4 Sea Surface Temperature Reprocessing over the European North West Shelf / Iberai Biscay Irrish Seas Reprocessing SST-ATL-SST-L4-REP-OBSERVATIONS-010-026, Tech. Rep. 1.3, https://resources.marine.copernicus.eu/documents/PUM/CMEMS-SST-PUM-010-0...
Chen, C., Liu, H., & Beardsley, R. C. (2003). An Unstructured Grid, Finite-Volume, Three-Dimensional, Primitive Equations Ocean Model: Application to Coastal Ocean and Estuaries. Journal of Atmospheric and Oceanic Technology, 20(1), 159–186. https://doi.org/10.1175/1520-0426(2003)020<0159:AUGFVT>2.0.CO;2
Egbert, G. D., & Erofeeva, S. Y. (2002). Efficient inverse modeling of barotropic ocean tides. Journal of Atmospheric and Oceanic Technology, 19(2), 183–204. https://doi.org/10.1175/1520-0426(2002)019<0183:EIMOBO>2.0.CO;2
Graham, J. A., O’Dea, E., Holt, J., Polton, J., Hewitt, H. T., Furner, R., Guihou, K., Brereton, A., Arnold, A., Wakelin, S., Castillo Sanchez, J. M., & Mayorga Adame, C. G. (2018). AMM15: a new high-resolution NEMO configuration for operational simulation of the European north-west shelf. Geoscientific Model Development, 11(2), 681–696. https://doi.org/10.5194/gmd-11-681-2018
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