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Data from oceanography measurements and models.

Data Extent


UK Open Government Licence (OGL)

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East Coast of Lewis and Harris Climatology 1.02

The East Coast of Lewis and Harris (ECLH) model is an implementation of the Finite Volume Community Ocean Model (FVCOM) and has a domain covering the whole of the Outer Hebrides, Skye and the Small Isles, and the north-west coast of Scotland. The model grid is unstructured with the highest horizontal resolution along most of the east coast of Lewis, where the node spacing is as small as 40 m but more typically 100 – 200 m. In the east of the domain, the north-west coast of Scotland, the node spacing is typically around 500 m. At the open boundary, the node spacing is approximately 3 km. The water column is resolved by 10 terrain following sigma layers, each representing 10% of the water column.

Variables include current velocities, water elevations, temperature and salinity, bed stress magnitude and various turbulence parameters (stored in netCDF format).

The data are from a single climatological year representing an average of the years 1990-2014.

O'Hara Murray, R., Campbell, L. 2021. East Coast of Lewis and Harris Climatology 1.02. doi: 10.7489/12042-1

Data and Resources

Release Date
Spatial / Geographical Coverage Area
POLYGON ((-4.85595703125 58.63800714475, -5.0537109375 59.17135402725, -6.767578125 59.069860362417, -8.67919921875 58.385518069596, -8.4814453125 56.578775474047, -7.66845703125 55.78390982777, -6.2841796875 56.299396132371, -5.99853515625 56.747828627914, -5.8447265625 57.440145742526, -5.2734375 58.049908552505))
Temporal Coverage
2016-06-06 to 2018-02-03
English (United Kingdom)
UK Open Government Licence (OGL)
Data Dictionary

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.

The ECLH 1.02 is a full year climatological run, which represents average conditions with a 1993 tidal component. The model is nested within the wider SSM and forced by the wider SSM.

The model forcing is made up of the following:

Boundary conditions: Wider SSM climatology version 2.01 (De Dominicis et al. 2017, De Dominicis et al. 2018)
Atmospheric: ERA-interim (1990-2014) (Dee et al. 2011)
Freshwater input: Grid 2 Grid (1962-2011) climatology obtained from the Centre of Ecology (CEH) (Bell et al. 2007, Cole and Moore 2009)

For a full description of the original development of the ECLH model see Price et al (2016). Although note that the model climatological model forcing is as described above.


Bell, V. A., Kay, A. L., Jones, R. G., & Moore, R. J. (2007). Development of a high resolution grid-based river flow model for use with regional climate model output. Hydrology and Earth System Sciences, 11(1), 532–549.

Cole, S. J., & Moore, R. J. (2009). Distributed hydrological modelling using weather radar in gauged and ungauged basins. Advances in Water Resources, 32(7), 1107–1120.

De Dominicis, M., O’Hara Murray, R., Wolf, J., & Gallego, A. (2018). The Scottish Shelf Model 1990 – 2014 climatology version 2.01.

De Dominicis, M., O’Hara Murray, R., & Wolf, J. (2017). Multi-scale ocean response to a large tidal stream turbine. Renewable Energy, 114, 1160–1179.

Dee, D. P., Uppala, S. M., Simmons, A. J., Berrisford, P., Poli, P., Kobayashi, S., Andrae, U., Balmaseda, M. A., Balsamo, G., Bauer, P., Bechtold, P., Beljaars, A. C. M., van de Berg, L., Bidlot, J., Bormann, N., Delsol, C., Dragani, R., Fuentes, M., Geer, A. J., … Vitart, F. (2011). The ERA-Interim reanalysis: configuration and performance of the data assimilation system. Quarterly Journal of the Royal Meteorological Society, 137(656), 553–597.

Price, D., Stuiver, C., Johnson, H., Gallego, A., & Murray, R. O. H. (2016). The Scottish Shelf Model. Part 4 : East Coast of Lewis and Harris Sub-Domain. Scottish Marine and Freshwater Science, 7(6).

Contact Name
Marine Scotland Science Oceanography
Contact Email
Public Access Level