ImpactETC1.0: impact-oriented tracking of extratropical cyclones with global optimisation and track reconciliation

Agertoft, Niels; Su, Jian; Pedersen, Jonas Wied; Ringgaard, Ida Margrethe; Larsen, Morten Andreas Dahl

doi:10.5194/gmd-19-5641-2026

Articles | Volume 19, issue 12

https://doi.org/10.5194/gmd-19-5641-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-19-5641-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 12

Model description paper

|

29 Jun 2026

Model description paper |

| 29 Jun 2026

ImpactETC1.0: impact-oriented tracking of extratropical cyclones with global optimisation and track reconciliation

Niels Agertoft, Jian Su, Jonas Wied Pedersen, Ida Margrethe Ringgaard, and Morten Andreas Dahl Larsen

Data sets

CERRA sub-daily regional reanalysis data for Europe on single levels from 1984 to present S. Schimanke et al. https://doi.org/10.24381/cds.622a565a

Model code and software

ImpactETC1.0 release N. Agertoft et al. https://doi.org/10.5281/zenodo.20309449

Short summary

Extratropical cyclones (ETCs) drive severe weather and cause significant socio-economic impacts. We present ImpactETC1.0, a framework that identifies ETC tracks and links them to local impacts, here storm surges. It uses global optimisation, BLOB analysis, and several post-processing options to improve tracking quality and identify impact-relevant tracks. Results show ImpactETC1.0 enables efficient, impact-focused ETC tracking.