Case study of a moisture intrusion over the Arctic with the ICOsahedral Non-hydrostatic (ICON) model: resolution dependence of its representation

Bresson, Hélène; Rinke, Annette; Mech, Mario; Reinert, Daniel; Schemann, Vera; Ebell, Kerstin; Maturilli, Marion; Viceto, Carolina; Gorodetskaya, Irina; Crewell, Susanne

doi:https://doi.org/10.5194/acp-22-173-2022

Articles | Volume 22, issue 1

https://doi.org/10.5194/acp-22-173-2022

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

https://doi.org/10.5194/acp-22-173-2022

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

Articles | Volume 22, issue 1

Research article

|

05 Jan 2022

Research article |

| 05 Jan 2022

Case study of a moisture intrusion over the Arctic with the ICOsahedral Non-hydrostatic (ICON) model: resolution dependence of its representation

Hélène Bresson, Annette Rinke, Mario Mech, Daniel Reinert, Vera Schemann, Kerstin Ebell, Marion Maturilli, Carolina Viceto, Irina Gorodetskaya, and Susanne Crewell

Data sets

High resolution radiosonde measurements from station Ny-Ålesund (2017-06) M. Maturilli https://doi.org/10.1594/PANGAEA.879822

Basic and other measurements of radiation at station Ny-Ålesund (2017-06) M. Maturilli https://doi.org/10.1594/PANGAEA.887502

Integrated water vapor of HATPRO microwave radiometer at AWIPEV, Ny-Ålesund (2017) T. Nomokonova, C. Ritter, and K. Ebell https://doi.org/10.1594/PANGAEA.902142

ECMWF ERA5 Copernicus Climate Change Service https://www.ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-v5

Integrated Global Radiosonde Archive (IGRA) Version 2 I. Durre https://www1.ncdc.noaa.gov/pub/data/igra/

Model code and software

PAMTRA: Passive and Active Microwave TRAnsfer tool v1.0 (v1.0.0) M. Mech, M. Maahn, D. Ori, and E. Orlandi https://doi.org/10.5281/zenodo.3582992

Short summary

Arctic warming is pronounced, and one factor in this is the poleward atmospheric transport of heat and moisture. This study assesses the 4D structure of an Arctic moisture intrusion event which occurred in June 2017. For the first time, high-resolution pan-Arctic ICON simulations are performed and compared with global models, reanalysis, and observations. Results show the added value of high resolution in the event representation and the impact of the intrusion on the surface energy fluxes.