SEAS5: the new ECMWF seasonal forecast system

Johnson, Stephanie J.; Stockdale, Timothy N.; Ferranti, Laura; Balmaseda, Magdalena A.; Molteni, Franco; Magnusson, Linus; Tietsche, Steffen; Decremer, Damien; Weisheimer, Antje; Balsamo, Gianpaolo; Keeley, Sarah P. E.; Mogensen, Kristian; Zuo, Hao; Monge-Sanz, Beatriz M.

doi:https://doi.org/10.5194/gmd-12-1087-2019

Articles | Volume 12, issue 3

https://doi.org/10.5194/gmd-12-1087-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-12-1087-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 3

Model description paper

|

22 Mar 2019

Model description paper |

| 22 Mar 2019

SEAS5: the new ECMWF seasonal forecast system

Stephanie J. Johnson, Timothy N. Stockdale, Laura Ferranti, Magdalena A. Balmaseda, Franco Molteni, Linus Magnusson, Steffen Tietsche, Damien Decremer, Antje Weisheimer, Gianpaolo Balsamo, Sarah P. E. Keeley, Kristian Mogensen, Hao Zuo, and Beatriz M. Monge-Sanz

Data sets

Climate service develops user-friendly data store B. Raoult, C. Bergeron, A. López Alós, J.-N. Thépaut, D. Dee https://doi.org/10.21957/p3c285

Short summary

In this article, we describe the new ECMWF seasonal forecast system, SEAS5, which replaced its predecessor in November 2017. We describe the forecast methodology used in SEAS5 and compare results from SEAS5 to results from the previous seasonal forecast system, highlighting the strengths and weaknesses of SEAS5. SEAS5 data are publicly available through the Copernicus Climate Change Service's multi-system seasonal forecast.