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The NORA10 hindcast is produced by running an atmospheric downscaling of the ERA-40 reanalysis and wave hindcast covering the Norwegian Sea, the North Sea, and the Barents Sea (Reistad et al, 2011; Aarnes et al. 2012; Furevik and Haakenstad, 2012). The period covered is from September 1957 to 2022. The dynamic atmospheric downscaling is performed as a series of 9 hours prognostic runs initialized from a blend of ERA-40 and the previous prognostic run.


The nested WAM wave model hindcast consists of a coarse 50 km model covering the North Atlantic forced with ERA-40 winds and a nested 10–11 km resolution model forced with downscaled winds. 


Data are available on request.



Aarnes, O.J., Breivik, Ø. and Reistad, M. (2012) Wave extremes in the Northeast Atlantic. Journal of Climate, 25, 1529– 1543.

Furevik, B.R. and Haakenstad, H. (2012) Near-surface marine wind profiles from rawinsonde and NORA10 hindcast. Journal of Geophysical Research, 117(D23), 14.

Reistad, M., Ø. Breivik, H. Haakenstad, O. J. Aarnes, B. R. Furevik, and J.‐R. Bidlot (2011), A high‐resolution hindcast of wind and waves for the North Sea, the Norwegian Sea, and the Barents Sea, J. Geophys. Res.,116, C05019, doi: