Characteristics of precipitation extremes over the Nordic region: added value of convection-permitting modeling

Médus, Erika; Thomassen, Emma D.; Belušić, Danijel; Lind, Petter; Berg, Peter; Christensen, Jens H.; Christensen, Ole B.; Dobler, Andreas; Kjellström, Erik; Olsson, Jonas; Yang, Wei

doi:https://doi.org/10.5194/nhess-22-693-2022

Articles | Volume 22, issue 3

https://doi.org/10.5194/nhess-22-693-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-22-693-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 3

Research article

|

07 Mar 2022

Research article |

| 07 Mar 2022

Characteristics of precipitation extremes over the Nordic region: added value of convection-permitting modeling

Erika Médus, Emma D. Thomassen, Danijel Belušić, Petter Lind, Peter Berg, Jens H. Christensen, Ole B. Christensen, Andreas Dobler, Erik Kjellström, Jonas Olsson, and Wei Yang

Supplement

https://doi.org/10.5194/nhess-22-693-2022-supplement

Data sets

Copernicus Climate Change Service (C3S) E-OBS daily gridded meteorological data for Europe from 1950 to present derived from in-situ observations https://doi.org/10.24381/cds.151d3ec6

ERA5 hourly data on single levels from 1979 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.adbb2d47

Norwegian observational gridded climate datasets Norwegian Meteorological Institute https://thredds.met.no/thredds/catalog/senorge/seNorge2/catalog.html

Annual maximum daily precipitation for the Nordic-Baltic countries A. Dyrrdal https://doi.org/10.11582/2020.00023

Model code and software

Access to the models HIRLAM http://hirlam.org/index.php/hirlam-programme-53/access-to-the-models

About the HIRLAM programme F. Lantsheer http://hirlam.org/index.php/hirlam-programme-53

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Short summary

We evaluate the skill of a regional climate model, HARMONIE-Climate, to capture the present-day characteristics of heavy precipitation in the Nordic region and investigate the added value provided by a convection-permitting model version. The higher model resolution improves the representation of hourly heavy- and extreme-precipitation events and their diurnal cycle. The results indicate the benefits of convection-permitting models for constructing climate change projections over the region.